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gpt-5.6-luna

gpt-5.6-luna · medium, showing backend engineering. Results for all tested efforts are available below.

Backend engineering51

gpt-5.6-luna · medium

Backend engineering
51
Frontend interaction
13
Knowledge & Reasoning
25
Visual aesthetics
—
Maintainability
—
Evaluation time
10m 55s
Reference cost
$0.035

Backend engineering · Evaluation time & API cost

Backend tested · 9/21/2026Tasks & methodology

Results by reasoning effort

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Model / effortOverallBackend engineeringFrontend interactionKnowledge & ReasoningVisual aestheticsMaintainabilityTotal eval. timeTotal ref. costCompare
—32185——52m 31s$0.067
—511325——18m 22s$0.084
38.30495215554632m 18s$0.14
52.35568325665975m 23s$0.16
52.30657825596186m 14s$0.35

Score breakdown

Overall score
—
Evaluation time
18m 22s
Reference cost
$0.084

Service logic, error handling, and test verification.

Contracts and boundaries8 / 20

API contracts, input validation, and boundary behavior.

Retries and failures13 / 20

Error recovery, retry conditions, and failure handling.

CI and adversarial review3 / 20

Verification plans, risk detection, and audit evidence.

Transactions and consistency11 / 20

State transitions, concurrency control, and data consistency.

Caching and regression16 / 20

Cache invalidation, data updates, and regression coverage.

What changes with higher reasoning effort

Compare backend engineering scores, cost, and time across neighboring tested efforts.

low medium
Backend engineering
+19.0 pts
32.00 51.00
Reference cost
+$0.012
$0.023 $0.035
Evaluation time
+79.0%
6m 6s 10m 55s
View full comparison
Data snapshot published · 10/27/2026Scoring & cost notes