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Anthropic: Claude Opus 5.5 API Pricing
Claude Opus 5.5 is Anthropic's flagship model for demanding reasoning, coding, and long-horizon agentic work, succeeding Claude Opus 5. It is particularly strong at multi-step changes in large codebases, code...
How much does Anthropic: Claude Opus 5.5 cost for a real workload?
At 10M input + 2M output tokens per month, Anthropic: Claude Opus 5.5 costs about $80 ($40 input + $40 output). Try your own volumes in the cost calculator.
What is the official Anthropic: Claude Opus 5.5 price?
| Official (anthropic) | Catalog (OpenRouter) | |
|---|---|---|
| Input /1M | $4 | $4 |
| Output /1M | $20 | $20 |
| Cached input /1M | $0.2 | $0.2 |
✓ Matches the official list price. Source: anthropic official pricing page, checked 2026-10-21.
What are cheaper alternatives to Anthropic: Claude Opus 5.5?
- OpenAI: GPT-5.4 Image 2 — $8 in / $15 out per 1M
- OpenAI: GPT-5 Image — $10 in / $10 out per 1M
- OpenAI: GPT-4o (2024-05-13) — $5 in / $15 out per 1M
- OpenAI: GPT-4 Turbo (batch) — $5 in / $15 out per 1M
- Fireworks: Ember-1 — $3 in / $15 out per 1M
- Anthropic: Claude Sonnet 4.6 — $3 in / $15 out per 1M
Compare Anthropic: Claude Opus 5.5 with other models
Anthropic: Claude Opus 5.5 vs Anthropic: Claude Haiku 5.5 (batch)Anthropic: Claude Opus 5.5 vs Anthropic: Claude Haiku 5.5Anthropic: Claude Opus 5.5 vs Anthropic: Claude Haiku 4.5 (batch)Anthropic: Claude Opus 5.5 vs Anthropic: Claude Sonnet 5.5 (batch)Anthropic: Claude Opus 5.5 vs Anthropic: Claude Sonnet 5 (batch)Anthropic: Claude Opus 5.5 vs Anthropic: Claude Haiku 4.5
Frequently asked questions
How much does Anthropic: Claude Opus 5.5 cost?
Anthropic: Claude Opus 5.5 costs $4 per 1M input tokens and $20 per 1M output tokens (list price, snapshot October 21, 2026). At 10M input + 2M output tokens per month that is about $80.
What is the context window of Anthropic: Claude Opus 5.5?
Anthropic: Claude Opus 5.5 has a context window of 1,000,000 tokens and can return up to 128,000 output tokens per response.
What are cheaper alternatives to Anthropic: Claude Opus 5.5?
Cheaper models include OpenAI: GPT-5.4 Image 2 ($8 in / $15 out), OpenAI: GPT-5 Image ($10 in / $10 out), OpenAI: GPT-4o (2024-05-13) ($5 in / $15 out). See the full list on this page.
Is Anthropic: Claude Opus 5.5 free to use?
No. Anthropic: Claude Opus 5.5 is a paid model at $4 input / $20 output per 1M tokens. 20 free models are listed on the free models page.
What is the official price of Anthropic: Claude Opus 5.5?
On anthropic's official pricing page (checked 2026-10-21), Anthropic: Claude Opus 5.5 is listed at $4 per 1M input tokens and $20 per 1M output tokens. The catalog price tracked on this page matches it exactly.
Provider: anthropic · Model ID: anthropic/claude-opus-5.5 · Modality: text+image+file->text · Price snapshot October 21, 2026, refreshed daily. How we collect prices