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OpenRouter provides access to 25+ free models including Llama 3.3 70B, Qwen3.6-Plus, and Nemotron 3 Super. Routes requests to various providers with a single API.

Supported Models

Llama 3.3 70BQwen3.6-PlusNemotron 3 SuperMiniMax M2.5Devstral 2Gemma 3n

Key Features

  • Unified API
  • Model routing
  • Free tier available
  • OpenAI-compatible

Pros

  • Access to many models
  • No credit card required
  • Generous free tier with $10

Cons

  • Free tier limits shared across models
  • Rate limits can be restrictive

Best Use Cases

Multi-model applicationsCost optimizationFallback strategies