OpenAI API vs Anthropic API
Compare OpenAI API and Anthropic API on deployment, pricing, model support, and more.
OpenAI API
- Tagline
- GPT-4o, embeddings, DALL-E, and Whisper API — the most widely used LLM API powering the majority of AI applications
- Description
- The OpenAI API is the most widely used AI API in the world, providing programmatic access to GPT-4o (text and vision), DALL-E 3 (image generation), Whisper (speech-to-text), TTS (text-to-speech), embeddings, and the Assistants API. With OpenAI-compatible endpoints adopted across the industry as a standard, it's the default choice for most new AI applications — used by over 2 million developers and most AI-powered products.
- Category
- Code / DevTools
- Pricing
- Freemium
- Metric
- 2,000,000 Developers using OpenAI API (source)
- Link
- Visit
Anthropic API
- Tagline
- Claude models API — 200K-token context, tool use, vision, and computer use for building production AI applications
- Description
- The Anthropic API provides programmatic access to Claude — Anthropic's family of AI models known for strong reasoning, instruction following, 200K-token context windows, and low hallucination rates. The API supports text generation, vision (image analysis), tool use (function calling), computer use (controlling browsers and desktops), and the Messages API with conversation history. Available in Python and TypeScript SDKs with streaming support.
- Category
- Code / DevTools
- Pricing
- Freemium
- Metric
- 200,000 Context window (tokens) (source)
- Link
- Visit
| Attribute | OpenAI API | Anthropic API |
|---|---|---|
| Tagline | GPT-4o, embeddings, DALL-E, and Whisper API — the most widely used LLM API powering the majority of AI applications | Claude models API — 200K-token context, tool use, vision, and computer use for building production AI applications |
| Category | Code / DevTools | Code / DevTools |
| Pricing | Freemium | Freemium |
| Description | The OpenAI API is the most widely used AI API in the world, providing programmatic access to GPT-4o (text and vision), DALL-E 3 (image generation), Whisper (speech-to-text), TTS (text-to-speech), embeddings, and the Assistants API. With OpenAI-compatible endpoints adopted across the industry as a standard, it's the default choice for most new AI applications — used by over 2 million developers and most AI-powered products. | The Anthropic API provides programmatic access to Claude — Anthropic's family of AI models known for strong reasoning, instruction following, 200K-token context windows, and low hallucination rates. The API supports text generation, vision (image analysis), tool use (function calling), computer use (controlling browsers and desktops), and the Messages API with conversation history. Available in Python and TypeScript SDKs with streaming support. |
| Metric | 2,000,000 Developers using OpenAI API (source) | 200,000 Context window (tokens) (source) |
| Link | Visit | Visit |