Compare the Top Artificial Intelligence (AI) APIs that integrates with OpenRouter as of July 2025

This a list of Artificial Intelligence (AI) APIs that integrates with OpenRouter. Use the filters on the left to add additional filters for products that have integrations with OpenRouter. View the products that work with OpenRouter in the table below.

What is Artificial Intelligence (AI) APIs for OpenRouter?

Artificial Intelligence APIs are software that provide access to advanced technology, AI, and machine learning algorithms designed to solve complex problems. They allow developers to create applications with smarter artificial intelligence features such as natural language processing, image recognition, and more. Many companies use AI APIs to automate tasks or gain insights into customer data so they can improve their products or services. AI APIs are constantly evolving, enabling businesses to benefit from cutting-edge technologies while decreasing the time required for development. Compare and read user reviews of the best Artificial Intelligence (AI) APIs for OpenRouter currently available using the table below. This list is updated regularly.

  • 1
    ChatGPT

    ChatGPT

    OpenAI

    ChatGPT is an AI-powered conversational assistant developed by OpenAI that helps users with writing, learning, brainstorming, coding, and more. It is free to use with easy access via web and apps on multiple devices. Users can interact through typing or voice to get answers, generate creative content, summarize information, and automate tasks. The platform supports various use cases, from casual questions to complex research and coding help. ChatGPT offers multiple subscription plans, including Free, Plus, and Pro, with increasing access to advanced AI models and features. It is designed to boost productivity and creativity for individuals, students, professionals, and developers alike.
    Starting Price: Free
  • 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
    Gemini

    Gemini

    Google

    Gemini is Google's advanced AI chatbot designed to enhance creativity and productivity by engaging in natural language conversations. Accessible via the web and mobile apps, Gemini integrates seamlessly with various Google services, including Docs, Drive, and Gmail, enabling users to draft content, summarize information, and manage tasks efficiently. Its multimodal capabilities allow it to process and generate diverse data types, such as text, images, and audio, providing comprehensive assistance across different contexts. As a continuously learning model, Gemini adapts to user interactions, offering personalized and context-aware responses to meet a wide range of user needs.
    Starting Price: Free
  • 4
    GPT-4o

    GPT-4o

    OpenAI

    GPT-4o (“o” for “omni”) is a step towards much more natural human-computer interaction—it accepts as input any combination of text, audio, image, and video and generates any combination of text, audio, and image outputs. It can respond to audio inputs in as little as 232 milliseconds, with an average of 320 milliseconds, which is similar to human response time (opens in a new window) in a conversation. It matches GPT-4 Turbo performance on text in English and code, with significant improvement on text in non-English languages, while also being much faster and 50% cheaper in the API. GPT-4o is especially better at vision and audio understanding compared to existing models.
    Starting Price: $5.00 / 1M tokens
  • 5
    GPT-4o mini
    A small model with superior textual intelligence and multimodal reasoning. GPT-4o mini enables a broad range of tasks with its low cost and latency, such as applications that chain or parallelize multiple model calls (e.g., calling multiple APIs), pass a large volume of context to the model (e.g., full code base or conversation history), or interact with customers through fast, real-time text responses (e.g., customer support chatbots). Today, GPT-4o mini supports text and vision in the API, with support for text, image, video and audio inputs and outputs coming in the future. The model has a context window of 128K tokens, supports up to 16K output tokens per request, and has knowledge up to October 2023. Thanks to the improved tokenizer shared with GPT-4o, handling non-English text is now even more cost effective.
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