Api Platform Paid Only

OpenAI API

OpenAI API provides developers access to a suite of advanced AI models for integrating natural language processing, generation, and agentic capabilities into applications.

9/10 MegaOne Score

Visit OpenAI API →

Price $0.05/mo

Category Api Platform

Model Paid Only

Company OpenAI

Team Size 7,450

Total Funding $180.0B

About OpenAI API

The OpenAI API offers access to a diverse range of AI models, including the latest GPT-5.6 family (Sol, Terra, Luna), GPT-5.5, and GPT-5.4, along with specialized models for coding, voice, and images. It enables developers to build sophisticated AI agents, automate content creation, enhance conversational AI, and streamline processes requiring advanced language understanding and generation. The API is transitioning to a new Responses API for more flexible and performant multi-step workflows, deprecating the older Assistants API.

Why We Scored It 9/10

9/10

OpenAI API maintains market leadership with $3.2B projected revenue in 2026, processing 15 billion tokens per minute, and 15.9M monthly traffic, demonstrating massive enterprise adoption. Despite low Trustpilot ratings, the platform's scale, latest GPT-5.5 models, and dominant market position in the API space justify top-tier scoring.

Features & Platform

Free Tier

OpenAI API Coverage

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