Claude Opus 4.7 vs Opus 4.6: 7 Real-World Benchmarks via Crazyrouter
Claude Opus 4.7 just dropped. We ran Opus 4.7 and Opus 4.6 head-to-head through Crazyrouter on 7 different tasks.
Full Results
| Test | Opus 4.7 | Opus 4.6 | Result |
|---|---|---|---|
| Coding: Thread-Safe LRU Cache | 13.4s | 33.9s | 4.7 is 2.5x faster |
| Reasoning: Cost Optimization | 18.2s | 15.8s | Tie, 4.6 slightly faster |
| Context: Needle in a Haystack | 3.1s | 3.0s | Tie |
| Math: Factory Optimization | 10.0s | 20.5s | 4.7 is 2.1x faster |
| Creative Writing: Short Story | 16.3s | 101.1s | 4.7 is 6.2x faster |
| Code Debugging: Find & Fix Bugs | 11.1s | 58.6s | 4.7 is 5.3x faster |
| Translation: JP/KR/DE | 11.9s | 6.4s | 4.6 is faster |
What Stands Out
- Coding: 4.7 is 2.5x faster and writes more modern code
- Debugging: 4.7 is 5.3x faster and more systematic
- Creative writing: 4.7 is 6.2x faster
- Math reasoning: 4.7 is 2.1x faster
- Context + complex reasoning: basically a tie
- Translation: 4.6 actually wins on speed
Bottom Line
Opus 4.7 is a major upgrade for high-value tasks like coding, debugging, math, and creative generation. For translation, context retrieval, and lighter reasoning, Opus 4.6 still holds up well.
That means the smart move is not replacing 4.6 everywhere. Route the expensive, high-value work to 4.7 and keep routine workloads on 4.6.
Try both through Crazyrouter:
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