Arena lets visitors chat directly with AI search models, compare their outputs, and test prompts.
OpenRouter
Compare language models by pricing, context length, and benchmarks, then access them through the OpenRouter API.
About OpenRouter
OpenRouter is a web tool for comparing language models and accessing them through one API. It lists 500+ models from providers including OpenAI, Anthropic, Google and Meta, with pricing, context length and benchmarks shown side by side. Users can filter models by modality such as text, image, video and speech, and view per-model context size and input and output token rates.
Key features
- Compare models by pricing, context length, and benchmarks
- Filter models by modality like text, image, video, speech
- View per-model input and output token pricing
- View context window size for each model
- Access multiple models through one API
- Discover models from OpenAI, Anthropic, Google, Meta and more
Best for: Developers and researchers who need to compare models and use them through a single API.
Good for
- Covers 500+ models from multiple providers in one place
- Shows pricing, context length, and benchmarks side by side
- Provides one API for accessing listed models
OpenRouter at a glance
- Category
- AI & Machine Learning › AI Search & Research
- Type
- Online tool
- Pricing
- Not confirmed. Check the site
- Platforms
- Web
- Open source
- Not stated
- Language
- English
- Last checked
- Oct 5, 2026 · Online when checked
- Listed
- Oct 5, 2026
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Open source
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