Claude Sonnet 5.5
Claude Sonnet 5.5 is Anthropic's language model with a 1.0M context window and up to 128K output tokens, available from 8 providers, starting at $2.00 / 1M input and $10.00 / 1M output. A large language model in the Claude Sonnet series balancing speed and intelligence for reasoning, vision, and tool-use tasks.
| Benchmarks | |
|---|---|
| Intelligence Index | #2 |
| HLE | #5 |
| Time to First Token | #421 |
| SciCode | #4 |
| LCR | #23 |
| Output TPS | #82 |
Capabilities
Input3/5
Text✓
Image✓
Audio·
Video·
PDF✓
Output1/5
Text✓
Image·
Audio·
Video·
Embedding·
Capabilities7/13
Reasoning✓
Adaptive Reasoning·
Function Calling✓
Parallel Function Calling·
Structured Outputs✓
Native JSON Schema✓
Web Search✓
URL Context·
Computer Use✓
Code Execution·
File Search·
Prompt Caching✓
Assistant Prefill·
Pricing by Provider
US Dollar ($)
Per 1M tokens
| Provider | Standard | Batch | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Input $ / 1M | Output $ / 1M | Cache Read $ / 1M | Cache Write 5m $ / 1M | Cache Write 1h $ / 1M | Web Search $ / request | Input $ / 1M | Output $ / 1M | Cache Read $ / 1M | Cache Write 5m $ / 1M | Web Search $ / request | |
| $2.00 | $10.00 | $0.2 | $2.50 | $4.00 | N/A | — | — | — | — | — | |
| $2.00 | $10.00 | $0.2 | $2.50 | $4.00 | N/A | $1.00 | $5.00 | N/A | N/A | N/A | |
| $2.00 | $10.00 | $0.2 | $2.50 | $4.00 | N/A | — | — | — | — | — | |
| $2.00 | $10.00 | $0.2 | $2.50 | $4.00 | N/A | $1.00 | $5.00 | N/A | N/A | N/A | |
| $2.00 | $10.00 | $0.2 | $2.50 | $4.00 | $0.010 | N/A | N/A | N/A | N/A | N/A | |
| — | — | — | — | — | — | $1.00 | $5.00 | $0.1 | $1.25 | $0.010 | |
| $2.00 | $10.00 | $0.2 | N/A | N/A | N/A | — | — | — | — | — | |
| $2.40 | $12.00 | N/A | N/A | N/A | N/A | $1.20 | $6.00 | N/A | N/A | N/A | |
| $2.00 | $10.00 | $0.2 | $2.50 | N/A | N/A | — | — | — | — | — | |
Cost Calculator
US Dollar ($)
Preset:
Versions
| Version | Released | Context | Input / 1M | Output / 1M | Status |
|---|---|---|---|---|---|
| Claude Sonnet 5.5 | 1.0M | $2.00 | $10.00 | Current | |
| Claude Sonnet 5 | 1.0M | $2.00 | $10.00 | Deprecating | |
| Claude Sonnet 5.5 Batch | — | 1.0M | $1.00 | $5.00 | Available |
| Claude Sonnet 5.5 US Gov | — | 1.0M | $2.40 | $12.00 | Available |
| Claude Sonnet 4.6 | 1.0M | $3.00 | $15.00 | Deprecating | |
| Claude Sonnet 4.5 | 1.0M | $3.00 | $15.00 | Deprecated | |
| Claude Sonnet 4 | 1.0M | $3.00 | $15.00 | Deprecated | |
| Claude Sonnet 4.6 Adaptive | — | — | — | — | Available |
| Claude Sonnet 4.5 | — | — | — | — | Available |
| Claude Sonnet 4.6 Non-Reasoning Low Effort | — | — | — | — | Available |
| Claude Sonnet 4 | — | — | — | — | Available |
Other Models
| Model | Tier | Released | Context | Input / 1M | Output / 1M |
|---|---|---|---|---|---|
| Claude Opus 5.5 | Opus | 1.0M | $4.00 | $20.00 | |
| Claude Fable 5.1 | — | 1.0M | $10.00 | $50.00 | |
| Claude Opus 5 | Opus | 1.0M | $5.00 | $25.00 | |
| Claude Fable 5 | Fable | 1.0M | $10.00 | $50.00 | |
| Claude Fable 5.3 | Fable | — | — | — | — |
| Claude Mythos 5 | Mythos | — | 1.0M | $10.00 | $50.00 |
| Claude Mythos 5.1 | Mythos | — | 1.0M | $10.00 | $50.00 |
| Claude Opus 4.8 | Opus | 1.0M | $5.00 | $25.00 | |
| Claude Opus 4.7 | Opus | 1.0M | $5.00 | $25.00 | |
| Claude Opus 4.6 | Opus | 1.0M | $5.00 | $25.00 |