AnthropicAIWS category: Reasoning & Agentic
Claude Sonnet 5.5
Anthropic's Claude Sonnet 5.5, a mid-tier model optimized for fast, efficient coding, knowledge work and agentic workflows.
Source-backed facts
Field verified
Verification
Field verified
Profile
Source-backed
Context
1,000,000 tokens
Max output
128,000 tokens
API
Available
Specifications
Context
1,000,000 tokens
Max output
128,000 tokens
CompanyAnthropic
Release DateSep 28, 2026
Provider statusNot published
LicenseNot published
API availabilityAvailable
Capability Map
Verified fieldsReasoning
Supported
Image input
Supported
API access
Available
Native input modalities
textimage
Native output: text
Native output is what the model returns directly. Tool capabilities are separate.
Developer API Rates
Verified public rateInput / 1M
$2.00
Output / 1M
$10.00
Cached $0.2000 / 1M
Anthropic reports standard API pricing of $2 per million input tokens, $10 per million output tokens, $0.20 per million cache reads, and $2.50 per million cache writes.
Verified Capabilities
- 1,000,000 tokens published context window
- 128,000 tokens published maximum output
- Reasoning support listed by the provider
- Multimodal input: text, image
Pricing & Availability Notes
- Anthropic reports standard API pricing of $2 per million input tokens, $10 per million output tokens, $0.20 per million cache reads, and $2.50 per million cache writes.
Provider API model ID
Use this identifier in the provider API where supported.
claude-sonnet-5-5