Claude Opus 4.8 pricing
Anthropic · list prices as of 2026-09-29
| Input | $5 per 1M tokens |
|---|---|
| Output | $25 per 1M tokens |
| Cached input (read) | $0.50 per 1M tokens |
| Cache write | $6.25 per 1M tokens |
| Batch / async | 50% off |
| Context window | 1M tokens |
| Longest answer | 128K tokens |
What a call costs
| Typical call | Input tokens | Output tokens | Per call | Per month at 1,000 a day |
|---|---|---|---|---|
| Chat reply | 1,000 | 300 | $0.0125 | $375.00 |
| Document summary | 6,000 | 400 | $0.0400 | $1,200 |
| Code change | 3,000 | 1,200 | $0.0450 | $1,350 |
No caching or batch discount. Your own prompt will differ: count it exactly below.
Price your own prompt on Claude Opus 4.8Similarly priced models
- Claude Opus 4.5 (Anthropic): about the same
- Claude Opus 4.6 (Anthropic): about the same
- Claude Opus 4.7 (Anthropic): about the same
- Claude Opus 5 (Anthropic): about the same
- GPT-5.5 (OpenAI): 1.1× more
Questions
How much does Claude Opus 4.8 cost?
Claude Opus 4.8 costs $5 per million input tokens and $25 per million output tokens, as of 2026-09-29.
How much is one Claude Opus 4.8 call?
A call with 1,000 input tokens and a 300-token answer costs about $0.0125, or $375.00 a month at 1,000 calls a day.
How big is the Claude Opus 4.8 context window?
1,000,000 tokens.