OpenAI API S
OpenAI's developer platform for GPT models.
- Use case
- LLM APIs & routers
- Tier
- S
- Website
- https://platform.openai.com
- Last checked
Why S-tier
The broadest ecosystem and SDK support.
Alternatives in LLM APIs & routers
- S
Claude API
Anthropic's API for Claude models.
- S
OpenRouter
One API to reach models from many providers.
- A
Groq
Fast inference API for open models.
Other tier lists
Coding agents · AI IDEs & editors · App builders · Design-to-code & UI · Backend, database & auth · Deployment & hosting · Agent frameworks & MCP · Voice, audio & media · Game dev & 3D