Anthropic’s current default Opus for complex agentic coding and enterprise work. About 20% cheaper than Opus 5, with much cheaper cache reads. Prefer when Fable 5.1 is more than you need.
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Pricing snapshot
USD per 1 million tokens. Verify against the provider source before you lock budget.
| Rate | USD |
|---|---|
| Input / 1M | $4.00 |
| Output / 1M | $20.00 |
| Cached input / 1M | $0.200 |
| Cache write / 1M | $5.00 |
| Batch input / 1M | $2.00 |
| Batch output / 1M | $10.00 |
Model details
| Detail | Value |
|---|---|
| Provider | Anthropic |
| Context window | 1M |
| Max output | 128K |
| Tokenizer | Approx (Anthropic family) |
| Last verified | 2026-09-23 |
| API model id | claude-opus-5-5 |
Notes
Cache hits and refreshes are $0.20 per 1M (5% of input). Five-minute cache writes are $5 per 1M; one-hour writes are $8 per 1M. Batch is 50% of standard. Fast mode (Claude API only) is $8 / $40.
More Anthropic models
Same provider catalog. Use these when you are comparing rates within one stack.
- Claude 3.5 Sonnet: $3.00 in / $15.00 out
- Claude 3 Sonnet: $3.00 in / $15.00 out
- Claude Opus 5: $5.00 in / $25.00 out
- Claude Opus 4.6: $5.00 in / $25.00 out
- Claude Opus 4.8: $5.00 in / $25.00 out
- Claude Sonnet 4.6: $3.00 in / $15.00 out
- Claude Sonnet 5: $2.00 in / $10.00 out
- Claude Haiku 4.5: $1.00 in / $5.00 out
Featured comparisons
- GPT-6 Sol vs Claude Opus 5.5
- GPT-6 Astra vs Claude Opus 5.5
- Claude Fable 5.1 vs Claude Opus 5.5
- Claude Opus 5.5 vs GPT-5.6 Sol
- Grok 4.7 vs Claude Opus 5.5
Browse the full set on Compare.
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Related guides
- Claude Opus 5.5 pricing
- Sol vs Opus 5.5
- Claude Fable 5.1 pricing
- Cost per token vs task
- LLM API pricing
- Exact vs Approx