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Langchain openai compatible api example.


Langchain openai compatible api example This integration allows you to seamlessly generate embeddings for both queries and documents, leveraging the capabilities of the Javelin AI Gateway. type = string. This examples goes over how to use LangChain to interact with both OpenAI and HuggingFace. OpenAI offers a spectrum of models with different levels of power suitable for different tasks. Only specify if using a proxy or service emulator. Ollama now has built-in compatibility with the OpenAI Chat Completions API, making it possible to use more tooling and applications with Ollama locally. api_key: Optional[str] OpenAI API key. v1 namespace of Pydantic 2 with LangChain APIs. param client: Any [Optional] # OpenAI or AzureOpenAI client. Nov 13, 2024 · Example: Setting Up a Voice Agent with Twilio. A lot of people get started with OpenAI but want to explore other models. com to sign up to OpenAI and generate an API key. Initialize the OpenAI client using the API key obtained earlier. OpenRouter is an API that can be used with most AI SDKs, and has a very similar format to OpenAI's own API. 📄️ OpenWeatherMap. This tutorial will walk you through setting up the… 1st example: hierarchical planning agent . langchain helps us to build applications with LLM more easily. g. While LangChain has its own message and model APIs, LangChain has also made it as easy as possible to explore other models by exposing an adapter to adapt LangChain models to the other APIs, as to the OpenAI API. Below is an example implementation of a voice agent that: Uses Twilio's Media Streams to handle voice calls. Processes the response and sends it back to the caller. This cookbook demonstrates how to monitor DeepSeek models using the OpenAI SDK integration with Langfuse. AsyncOpenAI, openai. Additionally, vLLM offers experimental support for OpenAI Vision API compatible inference, which can be explored further in the documentation. model (str) – Assistant model to use. param openai_organization: Optional [str] [Optional Use as a LangChain agent, compatible with the AgentExecutor. If you are using a model hosted on Azure, you should use different wrapper for that: For a more detailed walkthrough of the Azure wrapper, see here. To access OpenAI chat models you’ll need to create an OpenAI account, get an API key, and install the @langchain/openai integration package. 4. --model-path can be a local folder or a Hugging Face repo name. Example Assumes model is compatible with OpenAI function-calling API. To access OpenAI embedding models you'll need to create a/an OpenAI account, get an API key, and install the langchain-openai integration package. This compatibility layer allows you to use Opper with any tool or library designed for OpenAI's API or SDKs (such as LangChain, Vercel AI SDK, DSPy, etc). Runtime args can be passed as the second argument to any of the base runnable methods . List[str] get_name (suffix: Optional [str] = None, *, name: Optional [str] = None) → str ¶ Get the name of the runnable. LangChain's integrations with many model providers make this easy to do so. This page goes over how to use LangChain with Azure OpenAI. In this example, we'll consider an approach called hierarchical planning, common in robotics and appearing in recent works for LLMs X robotics. Ollama tool calling Ollama tool calling uses the OpenAI compatible web server specification, and can be used with the default BaseChatModel. As we can see our LLM generated arguments to a tool! You can look at the docs for bind_tools() to learn about all the ways to customize how your LLM selects tools, as well as this guide on how to force the LLM to call a tool rather than letting it decide. param async_client: Any = None ¶ OpenAI or AzureOpenAI async client. Credentials Head to platform. API configuration Sep 11, 2023 · Langchain as a framework. Define OPENAI_API_KEY or ANTHROPIC_API_KEY on your system. This page covers how to use the OpenSearch ecosystem within LangChain. May 2, 2023 · LangChain is a framework for developing applications powered by language models. This example goes over how to use the Zapier integration with a SimpleSequentialChain, then an Dec 29, 2023 · The integration of the latest OpenAI models, specifically gpt-4-1106-preview, and ensuring compatibility with the latest version of the OpenAI API (version 1. Once you’ve done this set the OPENAI_API_KEY environment variable: from langchain_anthropic import ChatAnthropic from langchain_core. To access AzureOpenAI models you'll need to create an Azure account, create a deployment of an Azure OpenAI model, get the name and endpoint for your deployment, get an Azure OpenAI API key, and install the langchain-openai integration package. Bases: BaseOpenAI Azure-specific OpenAI large language models. 0, TGI offers an API compatible with the OpenAI Chat Completion API. To use the Azure OpenAI service use the AzureChatOpenAI integration. 请确保您的计算机上安装了 Python 环境。 通过运行以下命令安装 langchain_openai SDK。 # 如果下述命令报错，请将 pip 替换为 pip3 pip install -U langchain_openai; 您需要开通阿里云百炼模型服务并获得 API-KEY，详情请参考：获取 API Key。 Mar 24, 2024 · To do this, I’ve followed OpenAI’s Chat API reference openly available here, with some help from the code of vLLM, an Apache-2. The LangChain. environ["OPENAI_API_KEY"] = "sk npm install @langchain/openai export OPENAI_API_KEY = "your-api-key" Copy Constructor args Runtime args. A minimal example: from langchain. env 文件加载环境变量，并灵活配置多个模型的调用方式。 Mar 31, 2024 · Does anybody know how to expose an OpenAI compatible API with LangChain? LangServe does not seem to Support it. This notebook requires the following Python packages: openai, tiktoken, langchain and tair. param openai_api_key: Optional [SecretStr] = None (alias 'api_key') ¶ Automatically inferred from env var OPENAI_API_KEY if not provided. OpenAI Compatible Server. OpenAI is an artificial intelligence (AI) research laboratory. Connect CrewAI to LLMs!!! note "Default LLM" By default, CrewAI uses OpenAI's GPT-4 model for language processing. OpenLLM lets developers run any open-source LLMs as OpenAI-compatible API endpoints with a single command. See a usage example. param openai_api_key: Optional [SecretStr] [Optional] (alias 'api_key') ¶ Automatically inferred from env var OPENAI_API_KEY if not provided. ChatGPT is the Artificial Intelligence (AI) chatbot developed by OpenAI. If not passed in will be read from env var OPENAI_API_KEY. Async programming: The basics that one should know to use LangChain in an asynchronous context. LangChain integrates with many model providers. writeOnly = True. AzureOpenAI [source] #. base_url: Optional[str] Base URL for API requests. API configuration OpenAI 是一家美国人工智能 (AI) 研究实验室，由非营利组织 OpenAI Incorporated 及其营利性子公司 OpenAI Limited Partnership 组成。OpenAI 进行人工智能研究，其公开声明的目的是促进和开发友好的人工智能。OpenAI 系统在 Microsoft 的 Azure 基础上构建的超级计算平台上运行。 *Google Vertex AI is Google's enterprise offering **Bumblebee self-hosted models - including Llama, Mistral and Zephyr ***LMStudio via their OpenAI compatibility API LangChain is short for Language Chain. 1st example: hierarchical planning agent . You can interact with OpenAI Assistants using OpenAI tools or custom tools. Just change the base_url , api_key and model . LiteLLM Proxy is OpenAI-Compatible, it works with any project that calls OpenAI. This code is an adapter that converts our example to a list of messages that can be fed into a chat model. The API can be directly used with OpenAI's client libraries or third-party tools, like LangChain or LlamaIndex. The openai Python package makes it easy to use both OpenAI and Azure OpenAI. OpenAI-Compatible Completion Konko API is a fully managed Web API designed to help application dev Layerup Security The Layerup Security integration allows you to secure your calls to a Jan 14, 2024 · In many LLM Application, OpenAI API is a widely used format. OpenAI large language models. How to use LangChain with different Pydantic versions. ), they're not enforced on models in langchain-community. Dec 9, 2024 · To use, you should have the openai python package installed, and the environment variable OPENAI_API_KEY set with your API key. Constraints. . When an asynchronous implementation is not available, LangChain tries to provide a default implementation, even if it incurs a slight overhead. organization: Optional[str] OpenAI organization ID. Example Code For example, some providers do not expose a configuration for maximum output tokens, so max_tokens can't be supported on these. OpenAIのRealtime APIが出て久しいですね。 料金は高めですが、非常に強力なツールだと思います。実装して色々使ってみたいと思いますが、自分は基本的にLLM開発にはLangchainを利用しているので、Realtime APIでもLangchainを利用できなかなと思ってました。 def tool_example_to_messages (example: Example)-> List [BaseMessage]: """Convert an example into a list of messages that can be fed into an LLM. Feb 17, 2025 · We're excited to announce that Opper now provides an OpenAI-compatible API endpoint, making it easier than ever to access many models and capabilities through a single API. Creating a simple chatbot using LangChain and ChatOpenAI is straightforward. llama-cpp-python offers an OpenAI API compatible web server. Although you can use the TensorRT LLM integration published recently, it has no support for chat models yet, not to mention user defined templates. For example, the ainvoke method of many ChatModel implementations uses the httpx. tool-calling is extremely useful for building tool-using chains and agents, and for getting structured outputs from models more generally. param assistant_id: str [Required] # OpenAI assistant id. async As an example, let's get a model to generate a joke and separate the setup from the punchline: ["OPENAI_API_KEY"] = getpass. Now that you understand the key features of LangChain, let's explore an end-to-end example of creating a web app using LangChain, OpenAI GPT-3, and Streamlit. Mar 10, 2022 · Open-source examples and guides for building with the OpenAI API. Streams real-time audio to OpenAI's Realtime API. Completions: suffix. 2. 0 licensed inference server for LLMs that also offers OpenAI API compatibility. azure. 🦾 OpenLLM lets developers run any open-source LLMs as OpenAI-compatible API endpoints with a single command. batch, etc. format Feb 26, 2025 · 在人工智能开发中，调用多种第三方大模型（如 OpenAI、DeepSeek、阿里云等）是常见的需求。本文将详细介绍如何通过 LangChain 和 . Uses async, supports batching and streaming. 🔬 Build for fast and production usages; 🚂 Support llama3, qwen2, gemma, etc, and many quantized versions full list; ⛓️ OpenAI-compatible API; 💬 Built-in ChatGPT like UI; 🔥 Accelerated LLM decoding with state-of-the-art Jan 30, 2025 · To further enhance your chatbot, explore LangChain’s documentation (LangChain Docs), experiment with different LLMs, and integrate additional tools like vector databases for better contextual understanding. This web server can be used to serve local models and easily connect them to existing clients. Experimental Nature: The OpenAI compatibility feature is experimental and may undergo significant changes, including breaking changes. OpenAI has a tool calling (we use "tool calling" and "function calling" interchangeably here) API that lets you describe tools and their arguments, and have the model return a JSON object with a tool to invoke and the inputs to that tool. langchain-openai, langchain-anthropic, etc. It implements the OpenAI Completion class so that it can be used as a drop-in replacement for the OpenAI API. Share your own examples and guides. Jan 10, 2025 · The DeepSeek API uses an API format compatible with OpenAI. Setup Installation. param openai_organization: Optional [str] = None (alias 'organization') ¶ Automatically inferred from env var OPENAI_ORG_ID if Jun 9, 2023 · Local OpenAI API Server with FastChat. vLLM includes an OpenAI-compatible API server, facilitating seamless integration with existing applications that utilize OpenAI's models. param openai_organization: str | None = None (alias api_key: Optional[str] OpenAI API key. openai_assistant import OpenAIAssistantRunnable interpreter_assistant = OpenAIAssistantRunnable. When using exclusively OpenAI tools, you can just invoke the assistant directly and get final answers. 0 and beyond) is indeed a valuable enhancement for the LangChain framework. Base URL path for API requests, leave blank if not using a proxy or service emulator. Install requirements. param openai_organization: str | None = None (alias Mar 15, 2023 · This notebook goes over how to use Langchain with Azure OpenAI. Description Links; LLMs Minimal example that reserves OpenAI and Anthropic chat models. To pass provider-specific args, go here vLLM can be deployed as a server that mimics the OpenAI API protocol. messages import HumanMessage from langchain_core. Introducing the Dec 9, 2024 · class langchain_openai. OpenAI, then the namespace is [“langchain”, “llms”, “openai”] Return type. By bridging the LangChain framework with the versatile OpenAPI specification, we’ll Jun 14, 2024 · Seamless Integration — Connect Langchain agents using OpenAI-compatible APIs, including: OpenAI Compatible Assistant API; OpenAI Compatible Chat completion API; Built-in FastAPI May 2, 2025 · This package contains the LangChain integrations for OpenAI through their openai SDK. Create a new function chatbot that calls OpenAI using llm. AzureOpenAI# class langchain_openai. Use any OpenAI-compatible UI or UI framework with your custom Langchain Agent. The server can be installed by running the following command: Dec 9, 2024 · Since LocalAI and OpenAI have 1:1 compatibility between APIs, this class uses the openai Python package’s openai. ainvoke sending it the current state of stored messages. ⚠️ Setup to run examples. Nov 17, 2023 · This quick start focus mostly on the server-side use case for brevity. Dec 9, 2024 · langchain_community 0. Adapters are used to adapt LangChain models to other APIs. Here, we use Vicuna as an example and use it for three endpoints: chat completion, completion, and embedding. You can use this to control the agent. param openai_organization: str | None [Optional] (alias Prompt Templates . We then make the actual API call, and return the result. For detailed documentation on OpenAI features and configuration options, please refer to the API reference. While LangChain has it's own message and model APIs, we've also made it as easy as possible to explore other models by exposing an adapter to adapt LangChain models to the OpenAI api. FastChat API server can interface with apps based on the OpenAI API through the OpenAI API protocol. With LangGraph react agent executor, by default there is no prompt. LLM-generated interface: Use an LLM with access to API documentation to create an interface. OpenAI conducts AI research with the declared intention of promoting and developing a friendly AI. Below, you can find different SDKs adapted to use OpenRouter. To begin, install the necessary dependencies and load the required tools: Assumes model is compatible with OpenAI function-calling API. An OpenAI API key. If you are using an LLM Observability tool (which I highly recommend), you can set up the Callback Handler in the API Server. Make sure to select an ollama model that supports tool calling. Dec 9, 2024 · Use as a LangChain agent, compatible with the AgentExecutor. ChatDatabricks supports OpenAI-compatible tool calling API that lets you describe tools and their arguments, and have the model return a JSON object with a tool to invoke and the inputs to that tool. Credentials Head to the Azure docs to create your deployment and generate an API key. See a full list of supported models here. Configuring OpenAI. Example selectors are used in few-shot prompting to select examples for a prompt. Example 1: Simple Chatbot. param openai_organization: Optional [str] = None (alias 'organization') ¶ Automatically inferred from env var OPENAI_ORG_ID if OpenLLM lets developers run any open-source LLMs as OpenAI-compatible API endpoints with a single command. If you find this project useful, please give it a star ⭐! InMemoryMessageRepository, InMemoryRunRepository, InMemoryThreadRepository, Nov 7, 2023 · Context-based search pipeline (source: LangChain Docs) Semantic search Q&A using LangChain and OpenAI APIs # insert an openai key below parameter import os os. This object takes in the few-shot examples and the formatter for the few-shot examples. from langchain_community. param async_client: Any = None # OpenAI or AzureOpenAI async client. param check_every_ms: float = 1000. Step 1: Loading Tools and Initializing the Agent. API configuration Nov 12, 2023 · On the Langchain website, it states vLLMOpenAI supports both batching and async batching. Explore resources, tutorials, API docs, and dynamic examples to get the most out of OpenAI's developer platform. Sep 30, 2023 · Open-source examples and guides for building with the OpenAI API. environ["OPENAI_API_KEY"] = "YOUR pip install langchain openai This command installs both LangChain and the OpenAI API client, which are essential for building applications that leverage language models. Jul 5, 2024 · Expand the capabilities of your conversational agents and enable them to interact dynamically with APIs. To use, you should have the openai python package installed, and the environment variable OPENAI_API_KEY set with your API key. Pass the examples and formatter to FewShotPromptTemplate Finally, create a FewShotPromptTemplate object. Apr 26, 2025 · 通过 langchain_openai SDK 调用 前提条件. NOTE: Using bind_tools is recommended instead, as the functions and function_call request parameters are officially marked as deprecated by OpenAI. param openai_api_key: Optional [str] = None (alias 'api_key') ¶ Automatically inferred from env var OPENAI_API_KEY if not provided. suffix (Optional[str Base URL path for API requests, leave blank if not using a proxy or service emulator. 要访问 OpenAI 模型，您需要创建一个 OpenAI 账户，获取 API 密钥，并安装 langchain-openai 集成包。 凭证 . The figure below shows the overall architecture. This will help you get started with OpenAI completion models (LLMs) using LangChain. param assistant_id: str [Required] ¶ OpenAI assistant id. May 1, 2025 · This compatibility is designed to help developers leverage the capabilities of Ollama while maintaining familiarity with the OpenAI API structure. Constraints: type = string. async_client (Optional[Union[openai. Any parameters that are valid to be passed to the openai. Dec 9, 2024 · OpenAI Chat large language models. bind_tools() methods as described here. 19¶ langchain_community. openai provides convenient access to the OpenAI API. import os # Note. OpenAI-Compatible Completion OpenAI Chat large language models. When this FewShotPromptTemplate is formatted, it formats the passed examples using the example_prompt, then and adds them to the final prompt before suffix: Apr 26, 2025 · 百炼为通义千问视觉模型提供了与OpenAI兼容的使用方式。如果您之前使用OpenAI SDK或者其他OpenAI兼容接口（例如langchain_openai SDK），或者HTTP方式调用OpenAI的视觉模型服务，只需在原有框架下调整API-KEY、BASE_URL、model等参数，就可以直接使用通义千问视觉模型。 Tool calling . This compatibility ensures that developers can leverage vLLM's high-throughput capabilities without significant changes to their existing workflows. Can be passed in OpenAI format. AzureOpenAI [source] ¶. param client: Any [Optional] ¶ OpenAI or AzureOpenAI client. You can use this file to test the toolkit. Users should install Pydantic 2 and are advised to avoid using the pydantic. Another Idea would be to embedd my LangChain App into a Tool that can bei registered as a LibreChat Plugin. js repository has a sample OpenAPI spec file in the examples directory. However, you can configure your agents to use a different model or API. llms. adapters ¶. For my Langchain example, I FastChat provides OpenAI-compatible APIs for its supported models, so you can use FastChat as a local drop-in replacement for OpenAI APIs. Credentials You’ll need to have an Azure OpenAI instance deployed. Use the examples folder in this repo to integrate different SDKs with OpenRouter. AsyncAzureOpenAI]]) – AsyncOpenAI client. If you want to get automated tracing from runs of individual tools, you can also set your LangSmith API key by uncommenting below: To access AzureOpenAI embedding models you'll need to create an Azure account, get an API key, and install the langchain-openai integration package. GPU Support. utils import ConfigurableField from langchain_openai import ChatOpenAI model = ChatAnthropic (model_name = "claude-3-sonnet-20240229"). AsyncClient to make asynchronous HTTP requests to the model provider's API. configurable_alternatives (ConfigurableField (id = "llm"), default_key = "anthropic", openai = ChatOpenAI ()) # uses the default model Stream all output from a runnable, as reported to the callback system. I am sure that this is a bug in LangChain rather than my code. param openai_api_key: SecretStr | None [Optional] (alias 'api_key') # Automatically inferred from env var OPENAI_API_KEY if not provided. Overview Integration details OpenLM is a zero-dependency OpenAI-compatible LLM provider that can call different inference endpoints directly via HTTP. This step is crucial to authenticate your To access OpenAIEmbeddings embedding models you’ll need to create an OpenAI account, get an API key, and install the @langchain/openai integration package. This example goes over how to use LangChain to interact with OpenAI models. alternatively you can set a temporary env variable like this: # os. The Azure OpenAI API is compatible with OpenAI's API. They can also be passed via . Example using OpenAI tools:. We will be building a mock API that mimics the way OpenAI’s Chat Completion API (/v1/chat/completions) works. This changeset utilizes BaseOpenAI for minimal added code. Key Features of Ollama API Compatibility. invoke. Review full docs for full user-facing oauth developer support. Once you’ve done this set the OPENAI_API_KEY environment variable: Assumes model is compatible with OpenAI function-calling API. Usage Functions: For example, OpenAI functions is one popular means of doing this. By leveraging Langfuse’s observability tools and Dec 20, 2024 · Nodes are points on graphs and in langgraph nodes are represented with functions. Jun 20, 2024 · To customize the API base for ChatOpenAI to connect to GLM, which is compatible with the OpenAI API, you can set the baseURL in the configuration. Audio in the Chat Completions API will be released in the coming weeks, as a new model gpt-4o-audio-preview. Feb 16, 2023 · # Test that your OpenAI API key is correctly set as an environment variable # Note. May 22, 2024 · Get the namespace of the langchain object. Standard parameters are currently only enforced on integrations that have their own integration packages (e. Apr 2, 2025 · OpenAI-Compatible API Server. Sep 17, 2024 · from langchain import OpenAI from langchain. format = password. It parses an input OpenAPI spec into JSON Schema that the OpenAI functions API can handle. You can call Azure OpenAI the same way you call OpenAI with the exceptions noted below. How to integrate a local model into FastChat API server? It implements the OpenAI Completion class so that it can be used as a drop-in replacement for the OpenAI API. Once you've Dec 1, 2023 · This notebook goes over how to use Langchain with Azure OpenAI. 0. openai. This allows ChatGPT to automatically select the correct method and populate the correct parameters for the a API call in the spec for a given user input. Developers should be Dec 9, 2024 · Base URL path for API requests, leave blank if not using a proxy or service emulator. getpass ("Enter API key for OpenAI The Assistants API currently supports three types of tools: Code Interpreter, Retrieval, and Function calling. Feb 8, 2024 · Starting with version 1. The goal of this project is to create an OpenAI API-compatible version of the embeddings endpoint, which serves open source sentence-transformers models and other models supported by the LangChain's HuggingFaceEmbeddings, HuggingFaceInstructEmbeddings and HuggingFaceBgeEmbeddings class. For example, Klarna has a YAML file that describes its API and allows OpenAI to interact with it: A bridge to use Langchain output as an OpenAI-compatible API. Here is an example: Here is an example: import { OpenAI } from "@langchain/openai" ; const model = new OpenAI ( { temperature : 1 , openAIApiKey : 'xxx' , modelName : 'glm-4' } , { baseURL : "https Oct 26, 2024 · 概要. utils. com 注册 OpenAI 并生成 API 密钥。完成后，设置 OPENAI_API_KEY 环境变量 Feb 8, 2024 · OpenAI compatibility February 8, 2024. 🔬 Build for fast and production usages; 🚂 Support llama3, qwen2, gemma, etc, and many quantized versions full list; ⛓️ OpenAI-compatible API; 💬 Built-in ChatGPT like UI To effectively integrate the Javelin AI Gateway for embeddings, you will utilize the JavelinAIGatewayEmbeddings class from the langchain_community library. The list of messages per example corresponds to: Expose Anthropic Claude as an OpenAI compatible API; Use a third party library injector library; More examples can be found in tests/test_functional directory. A FastAPI + Langchain / langgraph extension to expose agent result as an OpenAI-compatible API. As of the 0. Jump to Example Using OAuth Access Token to see a short example how to set up Zapier for user-facing situations. create_assistant(name="langchain assistant", instructions="You are a personal math tutor. Dec 9, 2024 · param openai_api_base: Optional [str] = None (alias 'base_url') ¶ Base URL path for API requests, leave blank if not using a proxy or service emulator. param openai_api_key: SecretStr | None = None (alias 'api_key') # Automatically inferred from env var OPENAI_API_KEY if not provided. server, client: Retriever Simple server that exposes a retriever as a runnable. This means that the open models can be used as a replacement without any need for code modification. Once you’ve done this set the OPENAI_API_KEY environment variable: LangChain4j provides 4 different integrations with OpenAI for using chat models, and this is #1 : OpenAI uses a custom Java implementation of the OpenAI REST API, that works best with Quarkus (as it uses the Quarkus REST client) and Spring (as it uses Spring's RestClient). By modifying the configuration, you can use the OpenAI SDK or software compatible with the OpenAI API to access the DeepSeek API. 📄️ OpenSearch. Embedding as its client. vLLM supports all parameters except for: Chat: tools, and tool_choice. Can you help? Thank you. This server can be queried in the same format as OpenAI API. 0 ¶ Frequency with which to check run progress in ms. Thus, you should have the openai python package installed, and defeat the environment variable OPENAI_API_KEY by setting to a random string. This allows vLLM to be used as a drop-in replacement for applications using OpenAI API. Firstly, it works mostly the same as OpenAI Function Calling. OpenAI. if you run this notebook locally, you will need to reload your terminal and the notebook for the env variables to be live. But I can't get it working. 访问 https://platform. bind, or the second arg in . 0 # Frequency with which to check run progress in ms. LangChain uses OpenAI model names by default, so we need to assign some faux OpenAI model names to our local model. . bindTools, like shown in the examples below: Dec 27, 2024 · I searched the LangChain documentation with the integrated search. The REST API can be seamlessly operated from Google Colab, as demonstrated Oct 1, 2024 · The Realtime API will begin rolling out today in public beta to all paid developers. OpenAI systems run on an Azure-based supercomputing platform from Microsoft. Quickstart Many APIs are already compatible with OpenAI function calling. By integrating TaskingAI into LangChain, developers can harness a broad spectrum of AI models from various providers via a unified API that also supports OpenAI-standard responses. If you're working with prior versions of LangChain, please see the following guide on Pydantic compatibility. Installation and Setup Get an OpenAI api key and set it as an environment variable (OPENAI_API_KEY) Chat model See a usage example. llms import VLLMOpenAI llm = VLLMOpenAI( openai_api_key="EMP Example selectors: Used to select the most relevant examples from a dataset based on a given input. These applications directly use ChatGPT via api key and openai client library. With legacy LangChain agents you have to pass in a prompt template. If not passed in will be read from env var OPENAI_ORG_ID. Parameters. Browse a collection of snippets, advanced techniques and walkthroughs. Feb 3, 2025 · Open-source examples and guides for building with the OpenAI API. tools import MoveFileTool from langchain_core. runnables. After that, they are empowered by LLM and have there func LangChain is a comprehensive framework designed for developers to create and deploy sophisticated language-based AI applications. See the notebook example here. param openai_api_base: str | None = None (alias 'base_url') # Base URL path for API requests, leave blank if not using a proxy or service emulator. format = password 很多人开始使用 OpenAI，但希望探索其他模型。LangChain 与许多模型提供商的集成使这变得简单。虽然 LangChain 有自己的消息和模型 API，但我们也尽可能简化了探索其他模型的过程，通过暴露适配器将 LangChain 模型适配到 OpenAI API。 Dec 9, 2024 · Base URL path for API requests, leave blank if not using a proxy or service emulator. tool-calling is extremely useful for building tool-using chains and agents, and Can be passed in OpenAI format or as BaseTools. Since the openai_trtllm is compatible with OpenAI API, you can easily integrate with LangChain as an alternative to OpenAI or ChatOpenAI. chains import LLMChain 2. Audio capabilities in the Realtime API are powered by the new GPT‑4o model gpt-4o-realtime-preview. The bug is not resolved by updating to the latest stable version of LangChain (or the specific integration package). OpenWeatherMap provides all essential weather data for a specific location: 📄️ OracleAI Vector Search Dec 9, 2024 · Base URL path for API requests, leave blank if not using a proxy or service emulator. please keep the key safe and private. code-block:: python from langchain_experimental. Here’s a basic example: OpenAI conducts AI research with the declared intention of promoting and developing a friendly AI. You can also check out the LangChain GitHub repository (LangChain GitHub) and OpenAI’s API guides (OpenAI Docs) for more insights. 3 release, LangChain uses Pydantic 2 internally. To access OpenAI models you'll need to create an OpenAI account, get an API key, and install the langchain-openai integration package. create call can be passed in, even if not explicitly saved on this class. Game Plan. Embedding models Dec 9, 2024 · class OpenAIAssistantRunnable (RunnableSerializable [Dict, OutputType]): """Run an OpenAI Assistant. Their framework enables you to build layered LLM-powered applications that are context-aware and able to interact dynamically with their environment as agents, leading to simplified code for you and a more dynamic user experience for your customers. Step 1: Create your own API key in Secrets Manager (MUST) Note: This step is to use any string (without spaces) you like to create a custom API Key (credential) that will be used to access the proxy API later. Credentials Head to OpenAI’s website to sign up for OpenAI and generate an API key. Output is streamed as Log objects, which include a list of jsonpatch ops that describe how the state of the run has changed in each step, and the final state of the run. This example goes over how to use LangChain to interact with OpenAI models Explore resources, tutorials, API docs, and dynamic examples to get the most out of OpenAI's developer platform. OpenAI Official SDK uses the official OpenAI Java SDK. tiktoken is a fast BPE tokeniser for use with OpenAI's models. I used the GitHub search to find a similar question and didn't find it. stream, . function_calling import convert_to_openai_function from langchain_openai import ChatOpenAI Apr 29, 2025 · For comprehensive details on the API, refer to the OpenAI API Reference. OpenAI-Compatible Server vLLM can be deployed as a server that mimics the OpenAI API protocol. The FastChat server is compatible with both openai-python library and cURL commands. This key does not have to match your actual OpenAI key, and you don't need to have an OpenAI API key. tool_resources (Optional[Union[AssistantToolResources, dict, NotGiven]]) – Assistant tool resources. param openai_api_key: str | None = None (alias 'api_key') # Automatically inferred from env var OPENAI_API_KEY if not provided. param openai_organization: str | None = None (alias 'organization') # Automatically inferred from env var OPENAI_ORG_ID if not provided. The new Messages API allows customers and users to transition seamlessly from OpenAI models to open LLMs. specified. Sep 1, 2024 · Building the OpenAI Compatible API. Jul 24, 2023 · End-to-End LangChain Example. FastAPI WebSocket Endpoints for Twilio Integration Nov 9, 2023 · In this comprehensive guide, you’ll learn how to implement a Retrieval-Augmented Generation (RAG) system using OpenAI’s API using LangChain. This project is not limited to OpenAI’s models; some examples demonstrate the use of Anthropic’s language models. Head to https://platform. The OpenAI API is powered by a diverse set of models with different capabilities and price points. Overview This will help you getting started with vLLM chat models, which leverage the langchain-openai package. For example, if the class is langchain. This includes all inner runs of LLMs, Retrievers, Tools, etc. ikgxae nbkjb xamt ohefmgs yucsmj gnvnthe slrk tfre gnmdw mcnui dwsaks vrpkcw rqrlj qaygb jzszuf