OpenRouter API pricing calculator
OpenRouter Free Models Router Pricing Calculator: Input and Output Token Costs
Estimate prompt, response, cached input, and volume costs for OpenRouter Free Models Router. Pricing verified 2026-06-25 from the provider source.
Quick estimate
No API key needed. Pick a model, paste your question, choose the answer length, and get a close cost estimate.
3. How long will the AI answer be?
Your estimate will appear here.
Paste a prompt, choose an answer length, and calculate.
Pricing table
Input: $0 per 1M tokens
Output: $0 per 1M tokens
Cached input: $0 per 1M tokens
Context window: Provider-specific tokens
Source: https://openrouter.ai/pricing
Example prompt costs
A 2,000 token prompt and 1,000 token answer costs about $0.000000 before tool add-ons.
Routes to available free models; availability and limits can change.
How much does OpenRouter Free Models Router cost per 1M input tokens?
OpenRouter Free Models Router is seeded at $0 per 1M input tokens for the router tier.
How much does OpenRouter Free Models Router cost per 1M output tokens?
OpenRouter Free Models Router is seeded at $0 per 1M output tokens.
Does OpenRouter Free Models Router support cached input pricing?
No cached input price is active in this MVP seed.