Claude Opus 5.5 API price, and what each result really costs
Anthropic, listed 22 Sept 2026. Price checked 12 Nov 2026; unchanged since we started tracking it. Source: Anthropic's pricing page. anthropic/claude-opus-5.5
List price per million tokens
- Input
- $4.00
- Cached input
- $0.20
- Output
- $20.00
- Context window
- 1M tokens
Note: Cache hits priced at 0.05x input. Cache writes: 5m $5, 1h $8. Batch 50% off.
What it costs per task, and per task that works
Six common task shapes with typical token counts. The real cost counts the tries that get redone; the rates are examples, not measurements.
| Task | Per 1,000 tries | Per 1,000 that work, 8 in 10 | Per 1,000 that work, 6 in 10 | Per 1,000 that work, 4 in 10 |
|---|---|---|---|---|
| Support bot answer3,000 in / 300 out | $18.00 | $22.50 | $30.00 | $45.00 |
| Invoice field extraction2,500 in / 250 out | $15.00 | $18.75 | $25.00 | $37.50 |
| Lead scoring1,200 in / 100 out | $6.80 | $8.50 | $11.33 | $17.00 |
| Email reply draft1,500 in / 400 out | $14.00 | $17.50 | $23.33 | $35.00 |
| Translation900 in / 800 out | $19.60 | $24.50 | $32.67 | $49.00 |
| Search re-ranking4,000 in / 50 out | $17.00 | $21.25 | $28.33 | $42.50 |
Work out your own real cost per resultTest Claude Opus 5.5 on your own prompt
Compare Claude Opus 5.5 with
- Claude Opus 5$5.00 in / $25.00 outSwitch cost
- Claude Sonnet 4.6$3.00 in / $15.00 outSwitch cost
- GPT-5.6 Sol$4.00 in / $20.00 outSwitch cost
- Kimi K3$3.00 in / $15.00 outSwitch cost
- GPT-5.5$5.00 in / $30.00 outSwitch cost
Worked-through switches: Claude Opus 5.5 → Claude Sonnet 5.5: cost and quality on real tasks
Questions
How much does the Claude Opus 5.5 API cost?
$4.00 per million input tokens and $20.00 per million output tokens, or $0.20 per million for cached input. Price checked 12 Nov 2026; unchanged since we started tracking it.
What does a result that works really cost with Claude Opus 5.5?
A support bot answer (about 3,000 tokens in, 300 out) costs $0.018 per try. If 6 in 10 work first time, each answer that works really costs $0.03, because the redone ones were paid for too.