Claude Opus 5.5 price: $4 / $20 per million tokens
What Claude Opus 5.5 costs through the API: $4 per million input tokens, $20 output, a 1,000,000-token context window. Real monthly cost, comparison and price history.
Data as of 2026-11-11.
Input$4
Output$20
Context1,000,000 tokens
per million tokens
What a month of work costs
Three typical workloads, calculated at the current price:
- Support assistant (10M tokens read, 2M written) $80 per month
- Content drafting (5M read, 5M written) $120 per month
- Long-document analysis (50M read, 1M written) $220 per month
Compared with similar models
| Model | Input | Output | Context | |
|---|---|---|---|---|
| Claude Opus 5.5 | $4 | $20 | 1,000,000 | |
| Claude Fable 5.1 | $10 | $50 | 1,000,000 | 150% more expensive |
| Claude Opus 5 | $5 | $25 | 1,000,000 | 25% more expensive |
| GPT-6 Astra | $10 | $50 | 1,050,000 | 150% more expensive |
| GPT-6 Sol | $2 | $10 | 1,050,000 | 50% cheaper |
Price history
The price has not changed since we started tracking it (2026-10-12).
Source: OpenRouter price list, updated automatically every day. Prices exclude VAT.