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AI gateways and model routers
5 services that give one API for many model providers. Gateways, proxies and routers that put many model providers behind a single API, with features such as fallbacks, usage tracking and routing between models. Compare supported providers, added latency and how fees are charged.
How to read this page. The tools are grouped by category and are not ranked. Pricing labels come from vendors' own pages when we could confirm them. Always verify plans and limits on the vendor's site.
LLM APIs & Model Providers (4)
| Tool | What it does | Pricing | Link |
|---|---|---|---|
| LiteLLM | Open-source gateway for calling many LLM providers through one OpenAI-style interface. | See site | Official site |
| OpenRouter | Unified API that routes requests to many model providers. | See site | Official site |
| Portkey | AI gateway for routing, observing and governing LLM requests. | Freemium | Official site |
| Vercel AI Gateway | Vercel's gateway giving one endpoint for many AI model providers, with usage tracking and fallbacks. | Freemium | Official site |
AI Developer Tools (1)
| Tool | What it does | Pricing | Link |
|---|---|---|---|
| Helicone | Open-source LLM observability and gateway platform. | Freemium | Official site |