Claude Fable 5.2
Claude Fable 5.2 · max, showing backend engineering. Results for all tested efforts are available below.
Backend engineering97
Claude Fable 5.2 · max
- Backend engineering
- 97
- Frontend interaction
- 96
- Knowledge & reasoning
- 100
- Visual aesthetics
- 83
- Maintainability
- 73
- Evaluation time
- 228m 38s
- Cost
- $54.15
Backend engineering · Evaluation time & API cost
Backend tested · 11/10/2026Tasks & methodology
Tested configuration
Swipe to see all results →
| Model / effort | Overall | Backend engineering | Frontend interaction | Knowledge & reasoning | Visual aesthetics | Maintainability | Total eval. time | Total ref. cost | Compare |
|---|---|---|---|---|---|---|---|---|---|
| 94.00 | 97 | 96 | 100 | 83 | 73 | 351m 33s | $81.98 |
Score breakdown
- Overall score
- 94.00
- Evaluation time
- 351m 33s
- Cost
- $81.98
Service logic, error handling and verification.
Contracts and boundaries18 / 20
API contracts, input validation and boundary behavior.
Retries and failures20 / 20
Recovery, retry conditions and failure handling.
CI and adversarial review19 / 20
Verification plans, risk detection and audit evidence.
Transactions and consistency20 / 20
State transitions, concurrency and consistency.
Caching and regression20 / 20
Invalidation, data updates and regression coverage.
Data snapshot published · 11/13/2026Scoring & cost notes