One API. Multiple models. No limits.
No credit card required · Free tier included
One subscription. All the latest models.
GPT-5.5
OpenAI
Claude Opus 4.7
Anthropic
Claude Sonnet 4.6
Anthropic
Gemini 3.1 Pro
Gemini 3.5 Flash
+ 30 more
and counting
Switch between models instantly — no separate accounts, no extra subscriptions, no API key juggling. View all models →
Built for developers who need reliable, scalable AI infrastructure.
Drop-in replacement for OpenAI. Change one line of code to switch providers or mix models.
Access 30+ models from OpenAI (GPT-5.5, GPT-5.4, GPT-5.3-Codex), Anthropic (Claude Opus 4.7, Claude Sonnet 4.6, Claude Haiku 4.5), Google (Gemini 3.1 Pro, Gemini 3.5 Flash, Gemini 2.5 Pro), and more through a single endpoint.
No monthly lock-in. Top up your wallet and pay only for the tokens you actually use.
Point your OpenAI or Anthropic SDK base URL at AI Hub for drop-in compatibility across all three formats.
✅ OpenAI Chat Completions API
/v1/chat/completions
OpenAI-compatible
✅ OpenAI Responses API
/v1/responses
Thread support via previous_response_id
✅ Anthropic Messages API
/v1/messages
Full Anthropic SSE streaming
Three steps to production-grade AI.
Create your free account — no credit card needed. Start with generous free tier credits.
Generate an API key in your dashboard. Works with any OpenAI-compatible SDK.
Point your existing code at api.aihub.dev. Same format, multiple models, one bill.
Start free, scale as you grow.