Claude Opus 5.5
anthropic/claude-opus-5-5Claude model for long-running agentic coding and knowledge work
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...
Context
1M
1,000,000 tokens
Max output
128K
128,000 tokens
Input
$4.00
per 1M tokens
Output
$20.00
per 1M tokens
Providers
36
47 listings
Intelligence
57.6
Intelligence Index
Pricing
USD per 1M tokens · listed by Anthropic
| Token type | Standard | Over 200K context | fast mode |
|---|---|---|---|
| Input | $4.00 | $8.00 | $8.00 |
| Output | $20.00 | $30.00 | $40.00 |
| Cache read | $0.20 | $0.40 | — |
| Cache write | $5.00 | $10.00 | — |
Above 200K context: $8.00 in, $30.00 out. 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
- Intelligence57.6#1 of 208
- CodingNot scored—
- AgenticNot scored—
- Arena1,364#2 of 128
| Design Arena category | Elo | Win rate | Arena rank |
|---|---|---|---|
| 3D | 1,468 | 65.0% | #1 |
| Game dev | 1,438 | 66.4% | #1 |
| Data viz | 1,396 | 64.8% | #1 |
| Spreadsheet | 1,392 | 69.3% | #2 |
| Code | 1,386 | 61.5% | #1 |
| UI component | 1,377 | 63.5% | #2 |
| Website | 1,325 | 55.5% | #5 |
| SVG | 1,322 | 52.2% | #2 |
| Web apps | 1,319 | 61.1% | #1 |
| Mobile apps | 1,304 | 61.8% | #2 |
| Blender 3D | 1,273 | 58.7% | #4 |
Rankings
Position on each OneAtlas leaderboard
Providers · 36
47 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 AI
ZenMuxCortecs
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
Boundless
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-opus-5-5 | 1M | — | 128K | $4.00 | $20.00 | — | $0.20 | $5.00 | — | — | Yes | Yes | Unknown | No | Sep 22, 2026 |
| AI/ML API | anthropic/claude-opus-5.5 | 1M | — | 128K | $4.00 | $20.00 | — | $0.20 | $5.00 | — | — | Yes | Yes | Unknown | No | Sep 22, 2026 |
| AIHubMix | claude-opus-5-5 | 1M | — | 128K | $4.00 | $20.00 | — | $0.20 | $5.00 | — | — | Yes | Yes | Unknown | No | Sep 22, 2026 |
| Aixy | anthropic/claude-opus-5-5 | 1M | — | 128K | $4.00 | $20.00 | — | $0.20 | $5.00 | — | — | Yes | Yes | Yes | No | Sep 22, 2026 |
| Amazon Bedrock | eu.anthropic.claude-opus-5-5 | 1M | — | 128K | $4.40 | $22.00 | — | $0.22 | $5.50 | — | — | Yes | Yes | Yes | No | Sep 22, 2026 |
| Amazon Bedrock | us.anthropic.claude-opus-5-5 | 1M | — | 128K | $4.40 | $22.00 | — | $0.22 | $5.50 | — | — | Yes | Yes | Yes | No | Sep 22, 2026 |
| Amazon Bedrock | jp.anthropic.claude-opus-5-5 | 1M | — | 128K | $4.40 | $22.00 | — | $0.22 | $5.50 | — | — | Yes | Yes | Yes | No | Sep 22, 2026 |
| Amazon Bedrock | au.anthropic.claude-opus-5-5 | 1M | — | 128K | $4.40 | $22.00 | — | $0.22 | $5.50 | — | — | Yes | Yes | Yes | No | Sep 22, 2026 |
| Amazon Bedrock | global.anthropic.claude-opus-5-5 | 1M | — | 128K | $4.00 | $20.00 | — | $0.20 | $5.00 | — | — | Yes | Yes | Yes | No | Sep 22, 2026 |
| Amazon Bedrock | anthropic.claude-opus-5-5 | 1M | — | 128K | $4.00 | $20.00 | — | $0.20 | $5.00 | — | — | Yes | Yes | Yes | No | Sep 22, 2026 |
| Anthropic | claude-opus-5-5 | 1M | — | 128K | $4.00 | $20.00 | — | $0.20 | $5.00 | — | — | Yes | Yes | Yes | No | Sep 22, 2026 |
| Azure | claude-opus-5-5 | 1M | — | 128K | $4.00 | $20.00 | — | $0.20 | $5.00 | — | — | Yes | Yes | Yes | No | Sep 22, 2026 |
| Azure Cognitive Services | claude-opus-5-5 | 1M | — | 128K | $4.00 | $20.00 | — | $0.20 | $5.00 | — | — | Yes | Yes | Yes | No | Sep 22, 2026 |
| Boundless | claude-opus-5.5 | 1M | — | 128K | $4.00 | $20.00 | — | $0.20 | — | — | — | Yes | Yes | Unknown | No | Sep 22, 2026 |
| Cloudflare AI Gateway | anthropic/claude-opus-5.5 | 1M | — | 128K | $4.00 | $20.00 | — | $0.20 | $5.00 | — | — | Yes | Yes | Yes | No | Sep 22, 2026 |
| CommandCode | claude-opus-5-5 | 1M | — | 128K | $4.00 | $20.00 | — | $0.20 | $5.00 | — | — | Yes | Yes | Unknown | No | Sep 22, 2026 |
| Cortecs | claude-opus-5.5 | 1M | — | 128K | $4.40 | $22.00 | — | $0.22 | $5.50 | — | — | Yes | Yes | Yes | No | Sep 22, 2026 |
| CrossModel | anthropic/claude-opus-5-5 | 1M | — | 128K | $4.00 | $20.00 | — | $0.20 | $5.00 | — | — | Yes | Yes | Yes | No | Sep 22, 2026 |
| DevPass (LLM Gateway) | claude-opus-5-5 | 1M | — | 128K | $4.00 | $20.00 | — | $0.20 | $5.00 | — | — | Yes | Yes | Yes | No | Sep 22, 2026 |
| DigitalOcean | anthropic-claude-opus-5.5 | 1M | — | 128K | $4.00 | $20.00 | — | $0.20 | $5.00 | — | — | Yes | Yes | Unknown | No | Sep 22, 2026 |
| Eden AI | anthropic/claude-opus-latest | 1M | — | 128K | $4.00 | $20.00 | — | $0.20 | $5.00 | — | — | Yes | Yes | Yes | No | Sep 22, 2026 |
| Eden AI | anthropic/claude-opus-5-5 | 1M | — | 128K | $4.00 | $20.00 | — | $0.20 | $5.00 | — | — | Yes | Yes | Yes | No | Sep 22, 2026 |
| GitHub Copilot | claude-opus-5.5 | 1M | — | 128K | $4.00 | $20.00 | — | $0.20 | $5.00 | — | — | Yes | Yes | Yes | No | Sep 22, 2026 |
| GitLab Duo | duo-chat-opus-5-5 | 1M | — | 128K | Free | Free | — | Free | Free | — | — | Yes | Yes | Unknown | No | Sep 22, 2026 |
| Kilo Gateway | anthropic/claude-opus-5.5 | 1M | — | 128K | $4.00 | $20.00 | — | $0.20 | $5.00 | — | — | Yes | Yes | Yes | No | Sep 22, 2026 |
| LLM Gateway | anthropic/claude-opus-5-5 | 1M | — | 128K | $4.00 | $20.00 | — | $0.20 | $5.00 | — | — | Yes | Yes | Yes | No | Sep 22, 2026 |
| LLM Gateway | azure-anthropic/claude-opus-5-5 | 1M | — | 128K | $4.00 | $20.00 | — | $0.20 | $5.00 | — | — | Yes | Yes | Yes | No | Sep 22, 2026 |
| LLM Gateway | aws-bedrock/claude-opus-5-5 | 1M | — | 128K | $4.00 | $20.00 | — | $0.20 | $5.00 | — | — | Yes | Yes | No | No | Sep 22, 2026 |
| Merge Gateway | anthropic/claude-opus-5-5 | 1M | — | 128K | $4.00 | $20.00 | — | $0.20 | $5.00 | — | — | Yes | Yes | Yes | No | Sep 22, 2026 |
| NanoGPT | anthropic/claude-opus-5.5 | 1M | 1M | 128K | $4.00 | $20.00 | — | $0.20 | $5.00 | — | — | Yes | Yes | Yes | No | Sep 22, 2026 |
| NEAR AI Cloud | anthropic/claude-opus-5-5 | 1M | — | 128K | $4.00 | $20.00 | — | $0.20 | — | — | — | Yes | Yes | Unknown | No | Sep 22, 2026 |
| Neon | claude-opus-5-5 | 1M | — | 128K | $4.00 | $20.00 | — | $0.20 | $5.00 | — | — | Yes | Yes | No | No | Sep 22, 2026 |
| Ofox | anthropic/claude-opus-5.5 | 1M | — | 128K | $4.00 | $20.00 | — | $0.20 | $5.00 | — | — | Yes | Yes | Unknown | No | Sep 22, 2026 |
| OpenCode | claude-opus-5-5 | 1M | — | 128K | $4.00 | $20.00 | — | $0.20 | $5.00 | — | — | Yes | Yes | Unknown | No | Sep 22, 2026 |
| Perplexity Agent | anthropic/claude-opus-5-5 | 1M | — | 128K | $4.00 | $20.00 | — | $0.20 | $5.00 | — | — | Yes | Yes | Yes | No | Sep 22, 2026 |
| Prime Inference | anthropic/claude-opus-5.5 | 1M | — | 128K | $4.00 | $20.00 | — | — | — | — | — | Yes | Yes | Yes | No | Sep 22, 2026 |
| Requesty | claude-opus-5-5@eu | 1M | — | 128K | $4.40 | $22.00 | — | $0.22 | $5.50 | — | — | Yes | Yes | Yes | No | Sep 22, 2026 |
| Requesty | claude-opus-5-5 | 1M | — | 128K | $4.00 | $20.00 | — | $0.20 | $5.00 | — | — | Yes | Yes | Yes | No | Sep 22, 2026 |
| Standard Compute | anthropic/claude-opus-5.5 | 1M | 850K | 50K | $4.00 | $20.00 | — | $0.20 | $5.00 | — | — | Yes | Yes | Unknown | No | Sep 22, 2026 |
| Venice AI | claude-opus-5-5-fast | 1M | — | 128K | $8.00 | $40.00 | — | $0.40 | $10.00 | — | — | Yes | Yes | Yes | No | Sep 22, 2026 |
| Venice AI | claude-opus-5-5 | 1M | — | 128K | $4.00 | $20.00 | — | $0.20 | $5.00 | — | — | Yes | Yes | Yes | No | Sep 22, 2026 |
| Vercel AI Gateway | anthropic/claude-opus-5.5 | 1M | — | 128K | $4.00 | $20.00 | — | $0.20 | $5.00 | — | — | Yes | Yes | Unknown | No | Sep 22, 2026 |
| Vercel AI Gateway | anthropic/claude-opus-5.5-fast | 1M | — | 128K | $8.00 | $40.00 | — | $0.40 | $10.00 | — | — | Yes | Yes | Unknown | No | Sep 22, 2026 |
| Vertex | claude-opus-5-5@default | 1M | — | 128K | $4.00 | $20.00 | — | $0.20 | $5.00 | — | — | Yes | Yes | Yes | No | Sep 22, 2026 |
| Vertex (Anthropic) | claude-opus-5-5@default | 1M | — | 128K | $4.00 | $20.00 | — | $0.20 | $5.00 | — | — | Yes | Yes | Yes | No | Sep 22, 2026 |
| Vivgrid | claude-opus-5-5 | 1M | — | 128K | $4.00 | $20.00 | — | $0.20 | $5.00 | — | — | Yes | Yes | Yes | No | Sep 22, 2026 |
| ZenMux | anthropic/claude-opus-5.5 | 1M | — | 128K | $4.00 | $20.00 | — | $0.20 | $5.00 | — | — | Yes | Yes | Unknown | No | Sep 22, 2026 |