Anthropic model product
Claude Opus 4.5
Premium model combining maximum intelligence with practical performance.
Updated Aug 12, 2026. Default version: Claude Opus 4.5
LLMBoard score69.5Claude Opus 4.5
Coverage60%11 benchmark families
Context window200KTokens
Official input price$5Anthropic API
Claude Opus 4.5 Specifications
Technical details for the model's default version.
- Version
- Claude Opus 4.5
- Released
- Nov 24, 2025
- Knowledge cutoff
- Mar 31, 2025
- Parameters
- N/A
- Context window
- 200K
- Max output
- 64K
- Inputs
- image, pdf, text
- Outputs
- text
- Open weights
- No
- License
- Proprietary
Claude Opus 4.5 Capability Profile
This profile uses the model's current scored version. Arena ratings and prices are shown separately.
Claude Opus 4.5 Benchmark Results
Benchmark scores for Claude Opus 4.5.
| MMMU (validation) | 80.7% | 01 | 4 | 100.0% | C | |
| Tau2 Retail | 88.9% | 03 | 26 | 92.0% | C | |
| Tau2 Telecom | 98.2% | 05 | 35 | 88.2% | C | |
| OSWorld | 66.3% | 06 | 20 | 73.7% | C | |
| SWE-Bench Verified | 80.9% | 06 | 105 | 95.2% | C | |
| MMMLU | 90.8% | 07 | 49 | 87.5% | C | |
| ARC-AGI v2 | 37.6% | 10 | 16 | 40.0% | C | |
| LiveBench | 76.0% | 12 | 38 | 70.3% | B | |
| Terminal-Bench 2.0 | 59.3% | 21 | 49 | 58.3% | C | |
| MCP Atlas | 62.3% | 25 | 31 | 20.0% | C | |
| GPQA | 87.0% | 41 | 234 | 82.8% | C |
Claude Opus 4.5 Arena Results
Preference and agent-evaluation results for the default version.
| search | overall | 17 | 1179.0 | 61,611 | N/A | |
| search factuality | overall | 18 | 1179.7 | 61,439 | N/A | |
| search style control | overall | 18 | 1186.9 | 61,611 | N/A | |
| document | overall | 19 | 1461.7 | 7,965 | N/A | |
| document style control | overall | 19 | 1464.3 | 7,965 | N/A | |
| text style control | overall | 29 | 1472.7 | 37,210 | N/A | |
| webdev | overall | 30 | 1494.5 | 10,627 | N/A | |
| text factuality | overall | 34 | 1458.5 | 69,979 | N/A | |
| text style control | overall | 35 | 1469.2 | 71,045 | N/A | |
| text factuality | overall | 36 | 1457.9 | 36,354 | N/A | |
| webdev | overall | 37 | 1468.0 | 12,916 | N/A | |
| text | overall | 40 | 1449.8 | 71,045 | N/A | |
| text | overall | 43 | 1446.7 | 37,210 | N/A |
Claude Opus 4.5 Runtime Performance
Provider-specific output speed and catalog latency for Claude Opus 4.5. Runtime does not affect the capability score.
| Anthropic | 42 tok/s | 0.5 s | 200K | 64K |
Output Speed is generated output tokens received per second. Catalog latency is reported separately from observed provider TTFT.
Claude Opus 4.5 Pricing
Official vendor API pricing appears first, followed by individual provider offers.
- Official API
- $5 input, $25 output per 1M
- Official provider
- Anthropic
- Lowest third-party
- From $0.71 input, $3.57 output per 1M via QiHang
- Tracked offerings
- 34
| QiHang | claude-opus-4-5-20251101 | global | $0.71 | $3.57 | 200K | |
| Poe | anthropic/claude-opus-4.5 | global | $4.3 | $21 | 196.6K | |
| Jiekou.AI | claude-opus-4-5-20251101 | global | $4.5 | $22.5 | 200K | |
| Impossibl | anthropic/claude-opus-4-5 | global | $5 | $25 | 200K | |
| NanoGPT | claude-opus-4-5-20251101 | global | $5 | $25 | 200K | |
| LLM Gateway | claude-opus-4-5-20251101 | global | $5 | $25 | 200K | |
| OpenCode Zen | claude-opus-4-5 | global | $5 | $25 | 200K | |
| GitHub Copilot | claude-opus-4.5 | global | $5 | $25 | 200K | |
| 302.AI | claude-opus-4-5-20251101 | global | $5 | $25 | 200K | |
| 302.AI | claude-opus-4-5 | global | $5 | $25 | 200K | |
| Neon | claude-opus-4-5 | global | $5 | $25 | 200K | |
| Pioneer | claude-opus-4-5 | global | $5 | $25 | 200K | |
| ZenMux | anthropic/claude-opus-4.5 | global | $5 | $25 | 200K | |
| Abacus | claude-opus-4-5-20251101 | global | $5 | $25 | 200K | |
| Azure Cognitive Services | claude-opus-4-5 | global | $5 | $25 | 200K | |
| Azure | claude-opus-4-5 | global | $5 | $25 | 200K | |
| Vertex (Anthropic) | claude-opus-4-5@20251101 | global | $5 | $25 | 200K | |
| Ofox | anthropic/claude-opus-4.5 | global | $5 | $25 | 200K | |
| OrcaRouter | anthropic/claude-opus-4.5 | global | $5 | $25 | 200K | |
| Vertex | claude-opus-4-5@20251101 | global | $5 | $25 | 200K | |
| Amazon Bedrock | anthropic.claude-opus-4-5-20251101-v1:0 | global | $5 | $25 | 200K | |
| Requesty | claude-opus-4-5 | global | $5 | $25 | 200K | |
| Kilo Gateway | anthropic/claude-opus-4.5 | global | $5 | $25 | 200K | |
| Merge Gateway | anthropic/claude-opus-4-5-20251101 | global | $5 | $25 | 200K | |
| Vercel AI Gateway | anthropic/claude-opus-4.5 | global | $5 | $25 | 200K | |
| OpenRouter | anthropic/claude-opus-4.5 | global | $5 | $25 | 200K | |
| Anthropic | claude-opus-4-5-20251101 | global | $5 | $25 | 200K | |
| Anthropic | claude-opus-4-5 | global | $5 | $25 | 200K | |
| Cloudflare AI Gateway | anthropic/claude-opus-4-5 | global | $5 | $25 | 200K | |
| Perplexity Agent | anthropic/claude-opus-4-5 | global | $5 | $25 | 200K | |
| Databricks | databricks-claude-opus-4-5 | global | $5 | $25 | 200K | |
| Cortecs | claude-opus4-5 | global | $5.31 | $26.57 | 200K | |
| Venice AI | claude-opus-4-5 | global | $6 | $30 | 198K |
Official prices use only the vendor's configured official Provider and positive standard USD PAYG rates. Third-party offers remain explicitly labeled.
Claude Opus 4.5 Versions
Available versions of this model. The score column identifies the version used in the overall ranking.
| Claude Opus 4.5 | 69.5 | N/A | 200K | 64K | No | Proprietary |
What is Claude Opus 4.5?
Key information about Claude Opus 4.5 and its available data.
Premium model combining maximum intelligence with practical performance. Best model in the world for coding, agents, and computer use. Most robustly aligned model with best prompt injection resistance of any frontier model.
Features extended thinking, 200K context window, 64K max output, and a new effort parameter for controlling reasoning depth. Pricing: $5/$25 per million tokens (input/output).
Data as of 2026-08-11.
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FAQ
Common questions about Claude Opus 4.5.
When was Claude Opus 4.5 released?
Claude Opus 4.5's default version was released on Nov 24, 2025.
How much does Claude Opus 4.5 cost?
Claude Opus 4.5's official API price is $5 per million input tokens and $25 per million output tokens via Anthropic. The lowest tracked third-party offer starts at $0.71 input and $3.57 output via QiHang.
Who created Claude Opus 4.5?
Claude Opus 4.5 was created by Anthropic.
What is the context window for Claude Opus 4.5?
The default version has a 200K token context window.
Is Claude Opus 4.5 open weight?
No. The default version is not marked as having publicly available weights.
How many API providers offer Claude Opus 4.5?
34 provider offerings are linked to the default version.
What models should I compare Claude Opus 4.5 with?
Nearby ranked alternatives include Hy3, GLM 5.1, Seed 2.0 Pro.