k2.8
k2.8 · max, showing backend engineering. Results for all tested efforts are available below.
Published results1 / 5 axes
No overall score until all axes are published.
k2.8 · max
- Backend engineering
- —
- Frontend interaction
- —
- Knowledge & Reasoning
- 70
- Visual aesthetics
- —
- Maintainability
- —
- Evaluation time
- —
- Reference cost
- —
Backend engineering · Evaluation time & API cost
Results by reasoning effort
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| Model / effort | Overall | Backend engineering | Frontend interaction | Knowledge & Reasoning | Visual aesthetics | Maintainability | Total eval. time | Total ref. cost | Compare |
|---|---|---|---|---|---|---|---|---|---|
| 63.55 | 54 | 72 | 70 | 57 | 53 | 70m 58s | $0.66 | ||
| — | — | — | 70 | — | — | 53m 24s | $0.59 |
Score breakdown
- Overall score
- —
- Evaluation time
- —
- Reference cost
- N/A
Service logic, error handling, and test verification.
Contracts and boundaries—
API contracts, input validation, and boundary behavior.
Retries and failures—
Error recovery, retry conditions, and failure handling.
CI and adversarial review—
Verification plans, risk detection, and audit evidence.
Transactions and consistency—
State transitions, concurrency control, and data consistency.
Caching and regression—
Cache invalidation, data updates, and regression coverage.
Subscores are not available for this configuration.
What changes with higher reasoning effort
Compare backend engineering scores, cost, and time across neighboring tested efforts.
high max
- Backend engineering
- — 54.00 → —
- Reference cost
- — $0.21 → —
- Evaluation time
- — 22m 14s → —
Data snapshot published · 10/27/2026Scoring & cost notes