Claude Sonnet 5.5
anthropic/claude-sonnet-5-5Fast Claude model for everyday coding, agents, and knowledge work
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...
Context
1M
1,000,000 tokens
Max output
128K
128,000 tokens
Input
$2.00
per 1M tokens
Output
$10.00
per 1M tokens
Providers
34
43 listings
Intelligence
56
Intelligence Index
Pricing
USD per 1M tokens · listed by Anthropic
| Token type | Standard |
|---|---|
| Input | $2.00 |
| Output | $10.00 |
| Cache read | $0.10 |
| Cache write | $2.50 |
Lowest input price across providers: Free.
Capabilities
ReasoningYes
Effort: low, medium, high, xhigh, max
Tool callYes
Structured outputYes
TemperatureNo
AttachmentsYes
Interleaved reasoningYes
Field: reasoning_details
Open weightsNo
ModeratedYes
Input
TextImagePDF
Output
Text
Benchmarks
Published scores and Design Arena Elo
- Intelligence56#2 of 208
- CodingNot scored—
- AgenticNot scored—
- Arena1,343#3 of 128
| Design Arena category | Elo | Win rate | Arena rank |
|---|---|---|---|
| Game dev | 1,414 | 62.2% | #2 |
| 3D | 1,401 | 51.4% | #5 |
| Data viz | 1,387 | 67.7% | #2 |
| UI component | 1,375 | 63.3% | #4 |
| Code | 1,353 | 56.3% | #5 |
| Website | 1,321 | 54.4% | #6 |
| Web apps | 1,305 | 60.3% | #3 |
| Blender 3D | 1,303 | 64.0% | #3 |
| Spreadsheet | 1,287 | 53.3% | #4 |
| Mobile apps | 1,281 | 59.6% | #3 |
Rankings
Position on each OneAtlas leaderboard
Providers · 34
43 listings
Anthropic
NanoGPT
LLM Gateway
Vercel AI Gateway
Kilo Gateway
Eden AI
DevPass (LLM Gateway)
Merge Gateway
Amazon BedrockRequesty
AI/ML API
AIHubMix
Ofox
302.AI
OpenCode
Venice AICortecs
Azure
Azure Cognitive Services
DigitalOcean
Cloudflare AI Gateway
CommandCode
Prime Inference
CrossModel
Vertex
Neon
NEAR AI Cloud
Perplexity Agent
Standard Compute
Vivgrid
GitHub Copilot
GitLab Duo
Vertex (Anthropic)
Aixy| Provider | Model ID | Context | Input limit | Output | Input $ | Output $ | Reasoning $ | Cache read | Cache write | Audio in | Audio out | Reasoning | Tools | Structured | Temp. | Updated |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 302.AI | claude-sonnet-5-5 | 1M | — | 128K | $2.00 | $10.00 | — | $0.20 | $2.50 | — | — | Yes | Yes | Unknown | No | Sep 28, 2026 |
| AI/ML API | anthropic/claude-sonnet-5.5 | 1M | — | 128K | $2.00 | $10.00 | — | $0.20 | $2.50 | — | — | Yes | Yes | Unknown | No | Sep 28, 2026 |
| AIHubMix | claude-sonnet-5-5 | 1M | — | 128K | $2.00 | $10.00 | — | $0.10 | $2.50 | — | — | Yes | Yes | Unknown | No | Sep 28, 2026 |
| Aixy | anthropic/claude-sonnet-5-5 | 1M | — | 128K | $2.00 | $10.00 | — | $0.10 | $2.50 | — | — | Yes | Yes | Yes | No | Sep 28, 2026 |
| Amazon Bedrock | eu.anthropic.claude-sonnet-5-5 | 1M | — | 128K | $2.20 | $11.00 | — | $0.11 | $2.75 | — | — | Yes | Yes | Yes | No | Sep 28, 2026 |
| Amazon Bedrock | au.anthropic.claude-sonnet-5-5 | 1M | — | 128K | $2.20 | $11.00 | — | $0.11 | $2.75 | — | — | Yes | Yes | Yes | No | Sep 28, 2026 |
| Amazon Bedrock | anthropic.claude-sonnet-5-5 | 1M | — | 128K | $2.00 | $10.00 | — | $0.10 | $2.50 | — | — | Yes | Yes | Yes | No | Sep 28, 2026 |
| Amazon Bedrock | us.anthropic.claude-sonnet-5-5 | 1M | — | 128K | $2.20 | $11.00 | — | $0.11 | $2.75 | — | — | Yes | Yes | Yes | No | Sep 28, 2026 |
| Amazon Bedrock | global.anthropic.claude-sonnet-5-5 | 1M | — | 128K | $2.00 | $10.00 | — | $0.10 | $2.50 | — | — | Yes | Yes | Yes | No | Sep 28, 2026 |
| Anthropic | claude-sonnet-5-5 | 1M | — | 128K | $2.00 | $10.00 | — | $0.10 | $2.50 | — | — | Yes | Yes | Yes | No | Sep 28, 2026 |
| Azure | claude-sonnet-5-5 | 1M | — | 128K | $2.00 | $10.00 | — | $0.20 | $2.50 | — | — | Yes | Yes | Yes | No | Sep 28, 2026 |
| Azure Cognitive Services | claude-sonnet-5-5 | 1M | — | 128K | $2.00 | $10.00 | — | $0.20 | $2.50 | — | — | Yes | Yes | Yes | No | Sep 28, 2026 |
| Cloudflare AI Gateway | anthropic/claude-sonnet-5.5 | 1M | — | 128K | $2.00 | $10.00 | — | $0.20 | $2.50 | — | — | Yes | Yes | Yes | No | Sep 28, 2026 |
| CommandCode | claude-sonnet-5-5 | 1M | — | 128K | $2.00 | $10.00 | — | $0.10 | $2.50 | — | — | Yes | Yes | Unknown | No | Sep 28, 2026 |
| Cortecs | claude-sonnet-5.5 | 1M | — | 128K | $2.25 | $11.25 | — | $0.23 | $2.81 | — | — | Yes | Yes | Yes | No | Sep 28, 2026 |
| CrossModel | anthropic/claude-sonnet-5-5 | 1M | — | 128K | $2.00 | $10.00 | — | $0.10 | $2.50 | — | — | Yes | Yes | Yes | No | Sep 28, 2026 |
| DevPass (LLM Gateway) | claude-sonnet-5-5 | 1M | — | 128K | $2.00 | $10.00 | — | $0.10 | $2.50 | — | — | Yes | Yes | Yes | No | Sep 28, 2026 |
| DigitalOcean | anthropic-claude-sonnet-5.5 | 1M | — | 128K | $2.00 | $10.00 | — | $0.20 | $2.50 | — | — | Yes | Yes | Unknown | No | Sep 28, 2026 |
| Eden AI | anthropic/claude-sonnet-5-5 | 1M | — | 128K | $2.00 | $10.00 | — | $0.10 | $2.50 | — | — | Yes | Yes | Yes | No | Sep 28, 2026 |
| Eden AI | anthropic/claude-sonnet-latest | 1M | — | 128K | $2.00 | $10.00 | — | $0.10 | $2.50 | — | — | Yes | Yes | Yes | No | Sep 28, 2026 |
| GitHub Copilot | claude-sonnet-5.5 | 1M | — | 128K | $2.00 | $10.00 | — | $0.10 | $2.50 | — | — | Yes | Yes | Yes | No | Sep 28, 2026 |
| GitLab Duo | duo-chat-sonnet-5-5 | 1M | — | 64K | Free | Free | — | Free | Free | — | — | Yes | Yes | Unknown | No | Sep 28, 2026 |
| Kilo Gateway | anthropic/claude-sonnet-5.5 | 1M | — | 128K | $2.00 | $10.00 | — | $0.10 | $2.50 | — | — | Yes | Yes | Yes | No | Sep 28, 2026 |
| LLM Gateway | anthropic/claude-sonnet-5-5 | 1M | — | 128K | $2.00 | $10.00 | — | $0.10 | $2.50 | — | — | Yes | Yes | Yes | No | Sep 28, 2026 |
| LLM Gateway | azure-anthropic/claude-sonnet-5-5 | 1M | — | 128K | $2.00 | $10.00 | — | $0.10 | $2.50 | — | — | Yes | Yes | Yes | No | Sep 28, 2026 |
| LLM Gateway | aws-bedrock/claude-sonnet-5-5 | 1M | — | 128K | $2.00 | $10.00 | — | $0.10 | $2.50 | — | — | Yes | Yes | No | No | Sep 28, 2026 |
| Merge Gateway | anthropic/claude-sonnet-5-5 | 1M | — | 128K | $2.00 | $10.00 | — | $0.10 | $2.50 | — | — | Yes | Yes | Yes | No | Sep 28, 2026 |
| NanoGPT | anthropic/claude-sonnet-5.5:thinking | 1M | 1M | 128K | $2.00 | $10.00 | — | $0.10 | $2.50 | — | — | Yes | Yes | Yes | No | Sep 28, 2026 |
| NanoGPT | anthropic/claude-sonnet-5.5 | 1M | 1M | 128K | $2.00 | $10.00 | — | $0.10 | $2.50 | — | — | Yes | Yes | Yes | No | Sep 28, 2026 |
| NEAR AI Cloud | anthropic/claude-sonnet-5-5 | 1M | — | 128K | $2.00 | $10.00 | — | $0.10 | — | — | — | Yes | Yes | Unknown | No | Sep 28, 2026 |
| Neon | claude-sonnet-5-5 | 1M | — | 128K | $2.00 | $10.00 | — | $0.20 | $2.50 | — | — | Yes | Yes | No | No | Sep 28, 2026 |
| Ofox | anthropic/claude-sonnet-5.5 | 1M | — | 128K | $2.00 | $10.00 | — | $0.20 | $2.50 | — | — | Yes | Yes | Yes | No | Sep 28, 2026 |
| OpenCode | claude-sonnet-5-5 | 1M | — | 128K | $2.00 | $10.00 | — | $0.20 | $2.50 | — | — | Yes | Yes | Unknown | No | Sep 28, 2026 |
| Perplexity Agent | anthropic/claude-sonnet-5-5 | 1M | — | 128K | $2.00 | $10.00 | — | $0.10 | $2.50 | — | — | Yes | Yes | Yes | No | Sep 28, 2026 |
| Prime Inference | anthropic/claude-sonnet-5.5 | 1M | — | 128K | $2.00 | $10.00 | — | — | — | — | — | Yes | Yes | Yes | No | Sep 28, 2026 |
| Requesty | claude-sonnet-5-5 | 1M | — | 128K | $2.00 | $10.00 | — | $0.20 | $2.50 | — | — | Yes | Yes | Yes | No | Sep 28, 2026 |
| Requesty | claude-sonnet-5-5@eu | 1M | — | 128K | $2.20 | $11.00 | — | $0.22 | $2.75 | — | — | Yes | Yes | Yes | No | Sep 28, 2026 |
| Standard Compute | anthropic/claude-sonnet-5.5 | 1M | 850K | 50K | $2.00 | $10.00 | — | $0.10 | $2.50 | — | — | Yes | Yes | Unknown | No | Sep 28, 2026 |
| Venice AI | claude-sonnet-5-5 | 1M | — | 128K | $2.00 | $10.00 | — | $0.10 | $2.50 | — | — | Yes | Yes | Yes | No | Sep 28, 2026 |
| Vercel AI Gateway | anthropic/claude-sonnet-5.5 | 1M | — | 128K | $2.00 | $10.00 | — | $0.10 | $2.50 | — | — | Yes | Yes | Unknown | No | Sep 28, 2026 |
| Vertex | claude-sonnet-5-5@default | 1M | — | 128K | $2.00 | $10.00 | — | $0.10 | $2.50 | — | — | Yes | Yes | Yes | No | Sep 28, 2026 |
| Vertex (Anthropic) | claude-sonnet-5-5@default | 1M | — | 128K | $2.00 | $10.00 | — | $0.10 | $2.50 | — | — | Yes | Yes | Yes | No | Sep 28, 2026 |
| Vivgrid | claude-sonnet-5-5 | 1M | — | 128K | $2.00 | $10.00 | — | $0.20 | $2.50 | — | — | Yes | Yes | Yes | No | Sep 28, 2026 |