Model comparison
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Differences vs. gpt-5.6-luna · xhigh
Score, cost & time differences
Current baseline · gpt-5.6-luna · xhigh
56Backend engineering
Compared with gpt-5.6-luna · xhigh
- glm-5.3-flash · high
Backend engineering: −1 ptsReference cost $0.018 ($0.053 less)Evaluation time 21m 43s (1m 26s less)
Differences reflect these evaluation tasks. Cost and time cover the same dimension, not a typical conversation. Scoring & cost notes
| Metric | gpt-5.6-luna · xhigh | glm-5.3-flash · high |
|---|---|---|
| Backend engineering | gpt-5.6-lunaxhigh 56 | glm-5.3-flashhigh 55−1 pts |
| Overall | gpt-5.6-lunaxhigh 52.35 | glm-5.3-flashhigh 49.60−2.75 pts |
| Frontend interaction | gpt-5.6-lunaxhigh 83 | glm-5.3-flashhigh 76−7 pts |
| Knowledge & Reasoning | gpt-5.6-lunaxhigh 25 | glm-5.3-flashhigh 20−5 pts |
| Visual aesthetics | gpt-5.6-lunaxhigh 66 | glm-5.3-flashhigh 70+4 pts |
| Maintainability | gpt-5.6-lunaxhigh 59 | glm-5.3-flashhigh 59Tied |
Backend engineering evaluation · Evaluation consumption, not a monthly subscription fee
Cost & time
Backend engineering evaluation| Metric | gpt-5.6-luna · xhigh | glm-5.3-flash · high |
|---|---|---|
| Reference cost | gpt-5.6-lunaxhigh $0.071 | glm-5.3-flashhigh $0.018−$0.053 |
| Evaluation time | gpt-5.6-lunaxhigh 23m 9s | glm-5.3-flashhigh 21m 43s−6.2% |
Capability profiles
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Behind each score
Expand to inspect each subaxis.
Backend engineeringSubscores
| Scoring dimension | gpt-5.6-lunaxhigh | glm-5.3-flashhigh |
|---|---|---|
| Contracts and boundaries | 8 / 20 | 6 / 20 |
| Retries and failures | 15 / 20 | 12 / 20 |
| CI and adversarial review | 13 / 20 | 13 / 20 |
| Transactions and consistency | 12 / 20 | 10 / 20 |
| Caching and regression | 8 / 20 | 14 / 20 |
Frontend interactionSubscores
| Scoring dimension | gpt-5.6-lunaxhigh | glm-5.3-flashhigh |
|---|---|---|
| Layout and adaptation | 18 / 20 | 18 / 20 |
| Interaction behavior | 20 / 20 | 20 / 20 |
| State continuity | 15 / 20 | 15 / 20 |
| Accessibility and feedback | 13 / 15 | 9 / 15 |
| State validation and regression | 17 / 25 | 14 / 25 |
Knowledge & ReasoningSubscores
| Scoring dimension | gpt-5.6-lunaxhigh | glm-5.3-flashhigh |
|---|---|---|
| Mathematical reasoning | 5 / 15 | 5 / 15 |
| Computer science & AI | 0 / 15 | 5 / 15 |
| Science and engineering | 0 / 10 | 0 / 10 |
| Life sciences and medicine | 5 / 20 | 5 / 20 |
| Humanities and general knowledge | 15 / 40 | 5 / 40 |
Visual aestheticsSubscores
| Scoring dimension | gpt-5.6-lunaxhigh | glm-5.3-flashhigh |
|---|---|---|
| Composition | 19 / 20 | 20 / 20 |
| Spacing and alignment | 16 / 20 | 16 / 20 |
| Typography and expression | 17 / 20 | 17 / 20 |
| Color and surfaces | 19 / 20 | 20 / 20 |
| Control styling | 16 / 20 | 16 / 20 |
Subscores retain their original scale; the axis score uses a consistent conversion.
MaintainabilitySubscores
| Scoring dimension | gpt-5.6-lunaxhigh | glm-5.3-flashhigh |
|---|---|---|
| Semantic clarity | 15 / 20 | 15 / 20 |
| Control-flow organization | 20 / 20 | 19 / 20 |
| Locality of changes | 15 / 20 | 15 / 20 |
| State and lifecycle | 18 / 20 | 18 / 20 |
| Implementation economy | 16 / 20 | 17 / 20 |
Subscores retain their original scale; the axis score uses a consistent conversion.