Claude Opus 5.5
anthropic/claude-opus-5.5
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 review and bug finding, financial and scientific analysis, and reading dense charts, diagrams, and screenshots, and it is more careful than its predecessor about only stating figures and citing sources it can back up. The model completes comparable tasks in fewer steps and with fewer tokens than Opus 5, and reports on its work in plainer language, with clear updates on what it did, what it found, and what it needs from the user. Thinking is always adaptive, so effort is the main lever for trading off depth, latency, and cost, and lower effort settings remain effective for latency-sensitive workloads.
Model specifications
- Input
- text, image, file
- Output
- text
- Context
- 1,000,000 tokens
- Max output
- 128,000 tokens
- Input price
- $4 / 1M tokens
- Output price
- $20 / 1M tokens
- Released
- 2026-09-23
Capabilities
- Streaming
- Function calling
- Vision
- JSON mode
Provider pricing, discounts and data privacy
Compare effective provider prices, published discounts, regions, retention policies, training use, compliance, and privacy links by service tier.
Standard service tier
3 available providers · tier input average $4 / 1M tokens · tier output average $20 / 1M tokens
Amazon Bedrock
Tier: Standard · Region: US
Pricing
- Input
- $4 / 1M tokens
- Output
- $20 / 1M tokens
- Cache read
- $0.2 / 1M tokens
- Cache write
- $5 / 1M tokens
No provider discount is currently published.
Data privacy and compliance
- Region
- US
- Zero data retention
- Yes
- Data retention
- Zero retention
- Used for training
- No
- Data collection
- Moderated
- No
- GDPR compliant
- Yes
- HIPAA compliant
- Yes
- SOC 2 certified
- Yes
- BYOK supported
- Yes
Privacy policy · Terms · Official website · Documentation · Status · Support
Amazon Bedrock
Tier: Standard · Region: US
Pricing
- Input
- $4 / 1M tokens
- Output
- $20 / 1M tokens
- Cache read
- $0.2 / 1M tokens
- Cache write
- $5 / 1M tokens
No provider discount is currently published.
Data privacy and compliance
- Region
- US
- Zero data retention
- Yes
- Data retention
- Zero retention
- Used for training
- No
- Data collection
- Moderated
- No
- GDPR compliant
- Yes
- HIPAA compliant
- Yes
- SOC 2 certified
- Yes
- BYOK supported
- Yes
Privacy policy · Terms · Official website · Documentation · Status · Support
Anthropic
Tier: Standard · Region: US
Pricing
- Input
- $4 / 1M tokens
- Output
- $20 / 1M tokens
- Cache read
- $0.2 / 1M tokens
- Cache write
- $5 / 1M tokens
No provider discount is currently published.
Data privacy and compliance
- Region
- US
- Zero data retention
- Yes
- Data retention
- Zero retention
- Used for training
- No
- Data collection
- Moderated
- No
- GDPR compliant
- Yes
- HIPAA compliant
- Yes
- SOC 2 certified
- Yes
- BYOK supported
- Yes
Privacy policy · Terms · Official website · Documentation · Status · Support
Frequently asked questions
- What is Claude Opus 5.5?
- 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 review and bug finding, financial and scientific analysis, and reading dense charts, diagrams, and screenshots, and it is more careful than its predecessor about only stating figures and citing sources it can back up. The model completes comparable tasks in fewer steps and with fewer tokens than Opus 5, and reports on its work in plainer language, with clear updates on what it did, what it found, and what it needs from the user. Thinking is always adaptive, so effort is the main lever for trading off depth, latency, and cost, and lower effort settings remain effective for latency-sensitive workloads.
- How much does Claude Opus 5.5 cost?
- Input costs start at $4 / 1M tokens and output costs start at $20 / 1M tokens. Provider-level prices vary by service tier.
- What is the context length of Claude Opus 5.5?
- Claude Opus 5.5 supports a 1,000,000 token context window and up to 128,000 output tokens.
- What capabilities does Claude Opus 5.5 support?
- Claude Opus 5.5 supports Streaming, Function calling, Vision, JSON mode.
- Which providers offer Claude Opus 5.5?
- Claude Opus 5.5 is available from Amazon Bedrock, Anthropic.
- How do providers handle data privacy for Claude Opus 5.5?
- 2 of 2 providers report that customer data is not used for training, and 2 offer zero-data-retention routing. Retention, compliance, and privacy-policy links are listed per provider.