OpenRouter
Prompt playgrounds · Freemium
About
A unified API and chat room for hundreds of models from many providers, useful for comparing prompts across models.
Key features
- Single API for many models
- Multi-model chat room
- Usage and cost tracking
- Provider fallback
Best for
- — Comparing many models with one key
- — Routing between providers
- Pricing
- Freemium
- Platforms
- Web, API
- Works with
- OpenAI, VS Code
- Last checked
- 2026-10-29
- Status
- Listed, not yet tested
Our take
Saves juggling many accounts. You add an intermediary, so check its data policies and per-provider terms.
Features and pricing change often — confirm on openrouter.ai before you commit.
Alternatives to OpenRouter
| Tool | Type | Pricing | Best for |
|---|---|---|---|
| OpenRouter (this) | Prompt playgrounds | Freemium | Comparing many models with one key |
| OpenAI Playground | Prompt playgrounds | Paid | Prototyping prompts for the OpenAI API |
| Claude Console | Prompt playgrounds | Paid | Prototyping prompts for the Claude API |
| Google AI Studio | Prompt playgrounds | Freemium | Trying Gemini models free |
| LMArena | Prompt playgrounds | Free | Blind model comparisons |
| TypingMind | Prompt playgrounds | Paid | Power users with API keys |
| Open WebUI | Prompt playgrounds | Open source | Running local models with a nice UI |