01
Anthropic API
Pick this if Calling Claude from your own product
Claude models via API. The pair to Claude Code.
Usage-based
8.3
VisitAlternatives · LLM APIs and model providers
Best OpenRouter alternatives
Rankings as of
OpenRouter is a unified API in front of many model providers. You use one key and switch model IDs. Use it when you do not want to bake a single lab into the product, or when you want to price-shop models without new accounts. You still pay usage. Rates: check site.
OpenRouter scores 7.9 in LLM APIs and model providers (The model behind the feature). The 5 alternatives below are the other tools in that job, ordered by their StackPick score. How we score.
Initial editorial estimate. Not a measured benchmark. Affiliate links may be used to monetize, but they never affect scores or rankings, and rankings are never sponsored.
Some links may earn us a commission. It never changes scores or order.
The tool
OpenRouter
One API key for many models, including labs and open weights.
7.9
VisitBest for Switching models without switching SDKs
Ranked alternatives
02
OpenAI API
Pick this if The model API most libraries already speak
The default model API. GPT models, tools, and a platform console.
Usage-based8.0
Visit03
7.7
Visit04
Gemini API
Pick this if A capable model API with a free starting quota
Google's Gemini models, with a free tier that moves.
Usage-based7.6
Visit05
Mistral
Pick this if A European model API, or open weights you can host
European model lab with an API and open-weight releases.
Usage-based6.7
Visit