Claude Opus 4.5
Official information
- Release date
- Nov 24, 2025
- Official model ID
- claude-opus-4-5-20251101
- Vendor source
- Claude Opus 4.5
- Identity verified
- Aug 13, 2026
API pricing
- Verification
- Verified
- Verified at
- Value benchmark tier
- claude-opus-4-5-standard
| Tier / region | Input / output · per MTok | Context pricing tier | Billing | Validity | Source |
|---|---|---|---|---|---|
claude-opus-4-5-standard global | $5 / $25 | No upper pricing tier | Standard online · Cache miss All day | Current | Official rates |
Rankings by category
Overall
#33High 0.9534.7
| Source | Percentile | Raw score | Config folding |
|---|---|---|---|
| Epoch AI | 31.5 | 150.1 | Single config |
| LiveBench | 30.5 | 72.9 | Single config |
| LMArena | 42.0 | 1448.8 | Median of 2 configs |
Cross-source percentile spread 11.6
Coding
#16Medium 0.6356.3
| Source | Percentile | Raw score | Config folding |
|---|---|---|---|
| LiveBench | 15.9 | 55.7 | Single config |
| LMArenatext-coding | 83.0 | 1501.0 | Median of 2 configs |
| · webdev | 35.9 | 1481.5 | Median of 2 configs |
| SWE-bench Verified | 93.8 | 79.2 | Median of 3 configs |
Cross-source percentile spread 77.9
Reasoning
#33High 0.9337.0
| Source | Percentile | Raw score | Config folding |
|---|---|---|---|
| Epoch AI | 28.0 | 0.9 | Median of 3 configs |
| LiveBench | 37.8 | 85.2 | Single config |
| LMArenatext-math | 36.9 | 1460.1 | Median of 2 configs |
| · text-hard | 53.4 | 1473.7 | Median of 2 configs |
Cross-source percentile spread 17.1
Value
#39High 0.9522.4
Aliases & configurations
- 4-5-opus
- claude-4-5-opus
- claude-opus-4-5
- claude-opus-4-5-20251101
- claude-opus-4-5-20251101-high-32k· high 32k
- claude-opus-4-5-20251101-thinking-64k-high-effort· thinking 64k / high effort