Model comparison
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Differences vs. gpt-5.6-sol · max
Score, cost & time differences
Current baseline · gpt-5.6-sol · max
85Backend engineering
Compared with gpt-5.6-sol · max
- claude-fable-5-1 · max
Backend engineering: tiedReference cost $12.77 ($11.06 more)Evaluation time 43m 45s (14m 25s 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 · max | claude-fable-5-1 · max |
|---|---|---|
| Backend engineering | gpt-5.6-solmax 85 | claude-fable-5-1max 85Tied |
| Overall | gpt-5.6-solmax 74.15 | claude-fable-5-1max 87.25+13.1 pts |
| Frontend interaction | gpt-5.6-solmax 73 | claude-fable-5-1max 91+18 pts |
| Knowledge & Reasoning | gpt-5.6-solmax 75 | claude-fable-5-1max 95+20 pts |
| Visual aesthetics | gpt-5.6-solmax 66 | claude-fable-5-1max 80+14 pts |
| Maintainability | gpt-5.6-solmax 64 | claude-fable-5-1max 68+4 pts |
Backend engineering evaluation · Evaluation consumption, not a monthly subscription fee
Cost & time
Backend engineering evaluation| Metric | gpt-5.6-sol · max | claude-fable-5-1 · max |
|---|---|---|
| Reference cost | gpt-5.6-solmax $1.71 | claude-fable-5-1max $12.77+$11.06 |
| Evaluation time | gpt-5.6-solmax 29m 19s | claude-fable-5-1max 43m 45s+49.2% |
Capability profiles
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Behind each score
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Backend engineeringSubscores
| Scoring dimension | gpt-5.6-solmax | claude-fable-5-1max |
|---|---|---|
| Contracts and boundaries | 17 / 20 | 13 / 20 |
| Retries and failures | 18 / 20 | 20 / 20 |
| CI and adversarial review | 13 / 20 | 14 / 20 |
| Transactions and consistency | 18 / 20 | 19 / 20 |
| Caching and regression | 19 / 20 | 19 / 20 |
Frontend interactionSubscores
| Scoring dimension | gpt-5.6-solmax | claude-fable-5-1max |
|---|---|---|
| Layout and adaptation | 18 / 20 | 20 / 20 |
| Interaction behavior | 20 / 20 | 20 / 20 |
| State continuity | 10 / 20 | 15 / 20 |
| Accessibility and feedback | 10 / 15 | 13 / 15 |
| State validation and regression | 15 / 25 | 23 / 25 |
Knowledge & ReasoningSubscores
| Scoring dimension | gpt-5.6-solmax | claude-fable-5-1max |
|---|---|---|
| Mathematical reasoning | 15 / 15 | 15 / 15 |
| Computer science & AI | 10 / 15 | 10 / 15 |
| Science and engineering | 5 / 10 | 10 / 10 |
| Life sciences and medicine | 10 / 20 | 20 / 20 |
| Humanities and general knowledge | 35 / 40 | 40 / 40 |
Visual aestheticsSubscores
| Scoring dimension | gpt-5.6-solmax | claude-fable-5-1max |
|---|---|---|
| Composition | 19 / 20 | 20 / 20 |
| Spacing and alignment | 17 / 20 | 18 / 20 |
| Typography and expression | 17 / 20 | 19 / 20 |
| Color and surfaces | 18 / 20 | 19 / 20 |
| Control styling | 16 / 20 | 17 / 20 |
Subscores retain their original scale; the axis score uses a consistent conversion.
MaintainabilitySubscores
| Scoring dimension | gpt-5.6-solmax | claude-fable-5-1max |
|---|---|---|
| Semantic clarity | 15 / 20 | 16 / 20 |
| Control-flow organization | 19 / 20 | 20 / 20 |
| Locality of changes | 17 / 20 | 15 / 20 |
| State and lifecycle | 18 / 20 | 18 / 20 |
| Implementation economy | 17 / 20 | 19 / 20 |
Subscores retain their original scale; the axis score uses a consistent conversion.