claude-opus-5-5
claude-opus-5-5 · xhigh, showing overall score. Results for all tested efforts are available below.
Overall score85.55
claude-opus-5-5 · xhigh
- Backend engineering
- 84
- Frontend interaction
- 87
- Knowledge & Reasoning
- 95
- Visual aesthetics
- 78
- Maintainability
- 64
- Evaluation time
- 61m 15s
- Reference cost
- $6.29
Complete evaluation · API reference cost
Backend tested · 9/23/2026Tasks & methodology
Results by reasoning effort
Swipe to see all results →
| Model / effort | Overall | Backend engineering | Frontend interaction | Knowledge & Reasoning | Visual aesthetics | Maintainability | Total eval. time | Total ref. cost | Compare |
|---|---|---|---|---|---|---|---|---|---|
| 85.55 | 84 | 87 | 95 | 78 | 64 | 61m 15s | $6.29 | ||
| 89.15 | 84 | 97 | 100 | 73 | 70 | 66m 3s | $13.41 |
Score breakdown
- Overall score
- 85.55
- Evaluation time
- 61m 15s
- Reference cost
- $6.29
Service logic, error handling, and test verification.
Contracts and boundaries17 / 20
API contracts, input validation, and boundary behavior.
Retries and failures17 / 20
Error recovery, retry conditions, and failure handling.
CI and adversarial review18 / 20
Verification plans, risk detection, and audit evidence.
Transactions and consistency15 / 20
State transitions, concurrency control, and data consistency.
Caching and regression17 / 20
Cache invalidation, data updates, and regression coverage.
What changes with higher reasoning effort
Compare overall scores, cost, and time across neighboring tested efforts.
xhigh max
- Overall
- +3.6 pts 85.55 → 89.15
- Reference cost
- +$7.12 $6.29 → $13.41
- Evaluation time
- +7.8% 61m 15s → 66m 3s
Model and effort comparisons
Data snapshot published · 10/27/2026Scoring & cost notes