What does Claude Opus 5.5 cost?

Claude Opus 5.5 is priced at $20 output and $4 input (USD per 1M tokens)

How large is the context window of Claude Opus 5.5?

Claude Opus 5.5 has a 1M Tokens context window with up to 128K Tokens output.

Where can I access Claude Opus 5.5?

Official channels: Website and API platform.

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Anthropic

Claude Opus 5.5

AClosed

Anthropic于2026年9月22日发布的Opus档最新旗舰模型，在多数工作上达到Claude Fable 5.1的水平，而运行成本比Opus 5低约40%。主打长时程高自主性Agent、大规模代码库的构建/调试/重构/代码审查，以及端到端企业工作流；支持记忆跨会话学习、子Agent编排与Fast模式（最高2.5倍速）。

API Pricing

Input

Output

$20

Cached input

$0.2

Peak hours

—

USD / 1M tokens

※ 官方发布公告（anthropic.com/claude/opus，2026-09-22）：输入 $4 / 缓存读取 $0.2 / 输出 $20 每百万 tokens，比 Opus 5 低 20%，缓存读取便宜 60%；Fast 模式 $8/$40；美国境内推理按 1.1 倍计价；Batch 五折

Price sourceanthropic.com ↗openrouter.ai ↗

No price change in the last two snapshots

Price history

12 snapshots · 2026-04-28 → 2026-08-17

Current: $30Period low: $30 (2026-04-28)Period high: $30 (2026-04-28)First tracked: $30 (2026-04-28)

Specifications

Context window: 1M Tokens
Max output: 128K Tokens
Input modalities: Text · Image
License: Closed

Overall score

Total

65.3

Rank

Tier

Data confidence

94%

Capability100

Scale36.5

Value34

Context60.5

Ecosystem36

Freshness89.4

Capabilities & use cases

vs_Claude_Fable_5.1 多数工作负载持平vs_Opus_5_cost 典型工作负载成本 -40%

Key capabilities

Adaptive Thinking
Fast Mode (2.5x)
Memory across sessions
Subagent orchestration
US-only inference option

Best for

大规模代码库Agent编程
端到端企业工作流
长时程自主Agent
知识工作与专业文档

Official links

Website ↗API platform ↗Pricing page ↗Open in comparator ↗

Same vendor

Claude Sonnet 5.5 Claude Haiku 5.5 Claude Fable 5.1

FAQ

What does Claude Opus 5.5 cost?: Claude Opus 5.5 is priced at $20 output and $4 input (USD per 1M tokens)
How large is the context window of Claude Opus 5.5?: Claude Opus 5.5 has a 1M Tokens context window with up to 128K Tokens output.
Where can I access Claude Opus 5.5?: Official channels: Website and API platform.

Data is refreshed daily and cross-checked against two independent sources; please confirm pricing and specs on the vendor page.