Model comparison
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Differences vs. gpt-5.6-sol · low
Score, cost & time differences
Current baseline · gpt-5.6-sol · low
66.70Overall
Compared with gpt-5.6-sol · low
- hy4-preview · high
Overall: tiedReference cost $1.63 ($0.100 more)Evaluation time 218m 41s (176m 52s more)
Differences reflect these evaluation tasks. Cost and time cover the same dimension, not a typical conversation. Scoring & cost notes
| Metric | gpt-5.6-sol · low | hy4-preview · high |
|---|---|---|
| Overall | gpt-5.6-sollow 66.70 | hy4-previewhigh 66.70Tied |
| Backend engineering | gpt-5.6-sollow 69 | hy4-previewhigh 74+5 pts |
| Frontend interaction | gpt-5.6-sollow 78 | hy4-previewhigh 73−5 pts |
| Knowledge & Reasoning | gpt-5.6-sollow 60 | hy4-previewhigh 65+5 pts |
| Visual aesthetics | gpt-5.6-sollow 66 | hy4-previewhigh 59−7 pts |
| Maintainability | gpt-5.6-sollow 64 | hy4-previewhigh 57−7 pts |
Complete evaluation · Evaluation consumption, not a monthly subscription fee
Cost & time
Complete evaluation| Metric | gpt-5.6-sol · low | hy4-preview · high |
|---|---|---|
| Reference cost | gpt-5.6-sollow $1.53 | hy4-previewhigh $1.63+$0.100 |
| Evaluation time | gpt-5.6-sollow 41m 49s | hy4-previewhigh 218m 41s+423% |
Capability profiles
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Behind each score
Expand to inspect each subaxis.
Backend engineeringSubscores
| Scoring dimension | gpt-5.6-sollow | hy4-previewhigh |
|---|---|---|
| Contracts and boundaries | 12 / 20 | 14 / 20 |
| Retries and failures | 15 / 20 | 17 / 20 |
| CI and adversarial review | 12 / 20 | 12 / 20 |
| Transactions and consistency | 14 / 20 | 16 / 20 |
| Caching and regression | 16 / 20 | 15 / 20 |
Frontend interactionSubscores
| Scoring dimension | gpt-5.6-sollow | hy4-previewhigh |
|---|---|---|
| Layout and adaptation | 18 / 20 | 18 / 20 |
| Interaction behavior | 18 / 20 | 20 / 20 |
| State continuity | 17 / 20 | 10 / 20 |
| Accessibility and feedback | 10 / 15 | 11 / 15 |
| State validation and regression | 15 / 25 | 14 / 25 |
Knowledge & ReasoningSubscores
| Scoring dimension | gpt-5.6-sollow | hy4-previewhigh |
|---|---|---|
| Mathematical reasoning | 10 / 15 | 15 / 15 |
| Computer science & AI | 10 / 15 | 10 / 15 |
| Science and engineering | 10 / 10 | 0 / 10 |
| Life sciences and medicine | 5 / 20 | 15 / 20 |
| Humanities and general knowledge | 25 / 40 | 25 / 40 |
Visual aestheticsSubscores
| Scoring dimension | gpt-5.6-sollow | hy4-previewhigh |
|---|---|---|
| Composition | 19 / 20 | 18 / 20 |
| Spacing and alignment | 16 / 20 | 16 / 20 |
| Typography and expression | 17 / 20 | 17 / 20 |
| Color and surfaces | 19 / 20 | 19 / 20 |
| Control styling | 16 / 20 | 14 / 20 |
Subscores retain their original scale; the axis score uses a consistent conversion.
MaintainabilitySubscores
| Scoring dimension | gpt-5.6-sollow | hy4-previewhigh |
|---|---|---|
| Semantic clarity | 15 / 20 | 15 / 20 |
| Control-flow organization | 20 / 20 | 18 / 20 |
| Locality of changes | 15 / 20 | 16 / 20 |
| State and lifecycle | 17 / 20 | 17 / 20 |
| Implementation economy | 19 / 20 | 17 / 20 |
Subscores retain their original scale; the axis score uses a consistent conversion.