Tool · cost estimate
OpenRouter Pricing Calculator
Choose models, set monthly token volume and adjust the input/output split to see estimated monthly cost.
| Model | Input | Output | Monthly total |
|---|---|---|---|
| Claude Opus 5.5 | $32.00 | $40.00 | $72.00 |
| Gemini 4 Argon | $16.00 | $20.00 | $36.00 |
| Muse Wonder | $32.00 | $40.00 | $72.00 |
| Moondream 3.1 | $2.40 | $5.00 | $7.40 |
At 10,000,000 tokens/month (80% input), Moondream 3.1 is the lowest-cost option at $7.40.
Source
openrouter.ai/api/v1/models Verified 2026-10-16 Estimates use list prices and exclude cache discounts, surcharges and tool fees