Compare the Top LLM API Providers that integrate with ChatGPT as of June 2025

This a list of LLM API providers that integrate with ChatGPT. Use the filters on the left to add additional filters for products that have integrations with ChatGPT. View the products that work with ChatGPT in the table below.

What are LLM API Providers for ChatGPT?

LLM API providers offer developers and businesses access to sophisticated language models and LLM APIs via cloud-based interfaces, enabling applications such as chatbots, content generation, and data analysis. These APIs abstract the complexities of model training and infrastructure management, allowing users to integrate advanced language understanding into their systems seamlessly. Providers typically offer a range of models optimized for various tasks, from general-purpose language understanding to specialized applications like coding assistance or multilingual support. Pricing models vary, with some providers offering pay-as-you-go plans, while others may have subscription-based pricing or free tiers for limited usage. The choice of an LLM API provider depends on factors such as model performance, cost, scalability, and specific use case requirements. Compare and read user reviews of the best LLM API providers for ChatGPT currently available using the table below. This list is updated regularly.

  • 1
    OpenRouter

    OpenRouter

    OpenRouter

    OpenRouter is a unified interface for LLMs. OpenRouter scouts for the lowest prices and best latencies/throughputs across dozens of providers, and lets you choose how to prioritize them. No need to change your code when switching between models or providers. You can even let users choose and pay for their own. Evals are flawed; instead, compare models by how often they're used for different purposes. Chat with multiple at once in the chatroom. Model usage can be paid by users, developers, or both, and may shift in availability. You can also fetch models, prices, and limits via API. OpenRouter routes requests to the best available providers for your model, given your preferences. By default, requests are load-balanced across the top providers to maximize uptime, but you can customize how this works using the provider object in the request body. Prioritize providers that have not seen significant outages in the last 10 seconds.
    Starting Price: $2 one-time payment
  • 2
    OpenAI

    OpenAI

    OpenAI

    OpenAI’s mission is to ensure that artificial general intelligence (AGI)—by which we mean highly autonomous systems that outperform humans at most economically valuable work—benefits all of humanity. We will attempt to directly build safe and beneficial AGI, but will also consider our mission fulfilled if our work aids others to achieve this outcome. Apply our API to any language task — semantic search, summarization, sentiment analysis, content generation, translation, and more — with only a few examples or by specifying your task in English. One simple integration gives you access to our constantly-improving AI technology. Explore how you integrate with the API with these sample completions.
  • 3
    Azure OpenAI Service
    Apply advanced coding and language models to a variety of use cases. Leverage large-scale, generative AI models with deep understandings of language and code to enable new reasoning and comprehension capabilities for building cutting-edge applications. Apply these coding and language models to a variety of use cases, such as writing assistance, code generation, and reasoning over data. Detect and mitigate harmful use with built-in responsible AI and access enterprise-grade Azure security. Gain access to generative models that have been pretrained with trillions of words. Apply them to new scenarios including language, code, reasoning, inferencing, and comprehension. Customize generative models with labeled data for your specific scenario using a simple REST API. Fine-tune your model's hyperparameters to increase accuracy of outputs. Use the few-shot learning capability to provide the API with examples and achieve more relevant results.
    Starting Price: $0.0004 per 1000 tokens
  • 4
    ConfidentialMind

    ConfidentialMind

    ConfidentialMind

    We've done the work of bundling and pre-configuring all the components you need for building solutions and integrating LLMs directly into your business processes. With ConfidentialMind you can jump right into action. Deploys an endpoint for the most powerful open source LLMs like Llama-2, turning it into an internal LLM API. Imagine ChatGPT in your very own cloud. This is the most secure solution possible. Connects the rest of the stack with the APIs of the largest hosted LLM providers like Azure OpenAI, AWS Bedrock, or IBM. ConfidentialMind deploys a playground UI based on Streamlit with a selection of LLM-powered productivity tools for your company such as writing assistants and document analysts. Includes a vector database, critical components for the most common LLM applications for shifting through massive knowledge bases with thousands of documents efficiently. Allows you to control the access to the solutions your team builds and what data the LLMs have access to.
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