Model comparison
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Differences vs. gpt-5.6-luna · low
Score, cost & time differences
Current baseline · gpt-5.6-luna · low
32Backend engineering
Compared with gpt-5.6-luna · low
- gpt-5.6-luna · medium
Backend engineering: +19 ptsReference cost $0.035 ($0.012 more)Evaluation time 10m 55s (4m 49s more)
Differences reflect these evaluation tasks. Cost and time cover the same dimension, not a typical conversation. Scoring & cost notes
| Metric | gpt-5.6-luna · low | gpt-5.6-luna · medium |
|---|---|---|
| Backend engineering | gpt-5.6-lunalow 32 | gpt-5.6-lunamedium 51+19 pts |
| Overall | gpt-5.6-lunalow — | gpt-5.6-lunamedium — |
| Frontend interaction | gpt-5.6-lunalow 18 | gpt-5.6-lunamedium 13−5 pts |
| Knowledge & Reasoning | gpt-5.6-lunalow 5 | gpt-5.6-lunamedium 25+20 pts |
| Visual aesthetics | gpt-5.6-lunalow — | gpt-5.6-lunamedium — |
| Maintainability | gpt-5.6-lunalow — | gpt-5.6-lunamedium — |
Backend engineering evaluation · Evaluation consumption, not a monthly subscription fee
Cost & time
Backend engineering evaluation| Metric | gpt-5.6-luna · low | gpt-5.6-luna · medium |
|---|---|---|
| Reference cost | gpt-5.6-lunalow $0.023 | gpt-5.6-lunamedium $0.035+$0.012 |
| Evaluation time | gpt-5.6-lunalow 6m 6s | gpt-5.6-lunamedium 10m 55s+79% |
Capability profiles
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Behind each score
Expand to inspect each subaxis.
Backend engineeringSubscores
| Scoring dimension | gpt-5.6-lunalow | gpt-5.6-lunamedium |
|---|---|---|
| Contracts and boundaries | 0 / 20 | 8 / 20 |
| Retries and failures | 12 / 20 | 13 / 20 |
| CI and adversarial review | 6 / 20 | 3 / 20 |
| Transactions and consistency | 9 / 20 | 11 / 20 |
| Caching and regression | 5 / 20 | 16 / 20 |
Frontend interactionSubscores
| Scoring dimension | gpt-5.6-lunalow | gpt-5.6-lunamedium |
|---|---|---|
| Layout and adaptation | 5 / 20 | 0 / 20 |
| Interaction behavior | 0 / 20 | 0 / 20 |
| State continuity | 0 / 20 | 0 / 20 |
| Accessibility and feedback | 0 / 15 | 0 / 15 |
| State validation and regression | 13 / 25 | 13 / 25 |
Knowledge & ReasoningSubscores
| Scoring dimension | gpt-5.6-lunalow | gpt-5.6-lunamedium |
|---|---|---|
| Mathematical reasoning | 0 / 15 | 5 / 15 |
| Computer science & AI | 0 / 15 | 0 / 15 |
| Science and engineering | 0 / 10 | 5 / 10 |
| Life sciences and medicine | 0 / 20 | 5 / 20 |
| Humanities and general knowledge | 5 / 40 | 10 / 40 |
Visual aestheticsSubscores
| Scoring dimension | gpt-5.6-lunalow | gpt-5.6-lunamedium |
|---|---|---|
| Composition | — | — |
| Spacing and alignment | — | — |
| Typography and expression | — | — |
| Color and surfaces | — | — |
| Control styling | — | — |
Subscores retain their original scale; the axis score uses a consistent conversion.
MaintainabilitySubscores
| Scoring dimension | gpt-5.6-lunalow | gpt-5.6-lunamedium |
|---|---|---|
| Semantic clarity | — | — |
| Control-flow organization | — | — |
| Locality of changes | — | — |
| State and lifecycle | — | — |
| Implementation economy | — | — |
Subscores retain their original scale; the axis score uses a consistent conversion.