Claude Sonnet 5.5
anthropic/claude-sonnet-5.5
Claude Sonnet 5.5 is Anthropic's Sonnet-class model for well-scoped everyday work, succeeding Claude Sonnet 5 as a direct upgrade. It is especially strong at building features, fixing bugs, and producing polished documents, slides, and spreadsheets, and it writes and communicates more clearly than its predecessor.
Model specifications
- Input
- text, image, file
- Output
- text
- Context
- 1,000,000 tokens
- Max output
- 128,000 tokens
- Input price
- $2 / 1M tokens
- Output price
- $10 / 1M tokens
- Released
- 2026-09-29
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
2 available providers · tier input average $2 / 1M tokens · tier output average $10 / 1M tokens
Amazon Bedrock
Tier: Standard · Region: US
Pricing
- Input
- $2 / 1M tokens
- Output
- $10 / 1M tokens
- Cache read
- $0.2 / 1M tokens
- Cache write
- $2.5 / 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
- $2 / 1M tokens
- Output
- $10 / 1M tokens
- Cache read
- $0.2 / 1M tokens
- Cache write
- $2.5 / 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 Sonnet 5.5?
- Claude Sonnet 5.5 is Anthropic's Sonnet-class model for well-scoped everyday work, succeeding Claude Sonnet 5 as a direct upgrade. It is especially strong at building features, fixing bugs, and producing polished documents, slides, and spreadsheets, and it writes and communicates more clearly than its predecessor.
- How much does Claude Sonnet 5.5 cost?
- Input costs start at $2 / 1M tokens and output costs start at $10 / 1M tokens. Provider-level prices vary by service tier.
- What is the context length of Claude Sonnet 5.5?
- Claude Sonnet 5.5 supports a 1,000,000 token context window and up to 128,000 output tokens.
- What capabilities does Claude Sonnet 5.5 support?
- Claude Sonnet 5.5 supports Streaming, Function calling, Vision, JSON mode.
- Which providers offer Claude Sonnet 5.5?
- Claude Sonnet 5.5 is available from Amazon Bedrock, Anthropic.
- How do providers handle data privacy for Claude Sonnet 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.