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
#37High 0.9234.0
| Source | Percentile | Raw score | Config folding |
|---|---|---|---|
| Epoch AI | 26.5 | 150.1 | Single config |
| LiveBench | 29.3 | 72.9 | Single config |
| LMArena | 46.1 | 1450.9 | Single config |
Cross-source percentile spread 19.5
Coding
#20Medium 0.6253.3
| Source | Percentile | Raw score | Config folding |
|---|---|---|---|
| LiveBench | 14.1 | 55.7 | Single config |
| LMArenatext-coding | 77.5 | 1498.3 | Single config |
| · webdev | 26.6 | 1469.5 | Single config |
| SWE-bench Verified | 93.8 | 79.2 | Median of 3 configs |
Cross-source percentile spread 79.6
Reasoning
#40High 0.9135.3
| Source | Percentile | Raw score | Config folding |
|---|---|---|---|
| Epoch AI | 24.0 | 0.9 | Median of 3 configs |
| LiveBench | 35.9 | 85.2 | Single config |
| LMArenatext-math | 36.3 | 1458.2 | Single config |
| · text-hard | 55.9 | 1476.0 | Single config |
Cross-source percentile spread 22.1
Value
#39High 0.9222.2
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