Model comparison
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Differences vs. Claude Haiku 5.5 · xhigh
Score, cost & time differences
Current baseline · Claude Haiku 5.5 · xhigh
64Maintainability
Compared with Claude Haiku 5.5 · xhigh
- GPT-5.6 Sol · max
Maintainability: tiedComparable cost unavailableComparable time unavailable
Differences reflect these evaluation tasks. Cost and time cover the same dimension, not a typical conversation. Scoring & cost notes
| Metric | Claude Haiku 5.5 · xhigh | GPT-5.6 Sol · max |
|---|---|---|
| Maintainability | Claude Haiku 5.5xhigh 64 | GPT-5.6 Solmax 64Tied |
| Overall | Claude Haiku 5.5xhigh 65.30 | GPT-5.6 Solmax 74.10+8.8 pts |
| Backend engineering | Claude Haiku 5.5xhigh 65 | GPT-5.6 Solmax 83+18 pts |
| Frontend interaction | Claude Haiku 5.5xhigh 76 | GPT-5.6 Solmax 73−3 pts |
| Knowledge & reasoning | Claude Haiku 5.5xhigh 60 | GPT-5.6 Solmax 75+15 pts |
| Visual aesthetics | Claude Haiku 5.5xhigh 59 | GPT-5.6 Solmax 66+7 pts |
Maintainability evaluation · Evaluation consumption, not a monthly subscription fee
Cost & time
Maintainability evaluation| Metric | Claude Haiku 5.5 · xhigh | GPT-5.6 Sol · max |
|---|---|---|
| Cost | Claude Haiku 5.5xhigh N/A | GPT-5.6 Solmax N/A |
| Evaluation time | Claude Haiku 5.5xhigh — | GPT-5.6 Solmax — |
Capability profiles
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Behind each score
Expand to inspect each subaxis.
Backend engineeringSubscores
| Scoring dimension | Claude Haiku 5.5xhigh | GPT-5.6 Solmax |
|---|---|---|
| Contracts and boundaries | 15 / 20 | 17 / 20 |
| Retries and failures | 15 / 20 | 18 / 20 |
| CI and adversarial review | 12 / 20 | 13 / 20 |
| Transactions and consistency | 12 / 20 | 18 / 20 |
| Caching and regression | 11 / 20 | 17 / 20 |
Frontend interactionSubscores
| Scoring dimension | Claude Haiku 5.5xhigh | GPT-5.6 Solmax |
|---|---|---|
| Layout and adaptation | 18 / 20 | 18 / 20 |
| Interaction behavior | 18 / 20 | 20 / 20 |
| State continuity | 15 / 20 | 10 / 20 |
| Accessibility and feedback | 10 / 15 | 10 / 15 |
| State validation and regression | 15 / 25 | 15 / 25 |
Knowledge & reasoningSubscores
| Scoring dimension | Claude Haiku 5.5xhigh | GPT-5.6 Solmax |
|---|---|---|
| Mathematical reasoning | 10 / 15 | 15 / 15 |
| Computer science & AI | 5 / 15 | 10 / 15 |
| Science and engineering | 5 / 10 | 5 / 10 |
| Life sciences and medicine | 15 / 20 | 10 / 20 |
| Humanities and general knowledge | 25 / 40 | 35 / 40 |
Visual aestheticsSubscores
| Scoring dimension | Claude Haiku 5.5xhigh | GPT-5.6 Solmax |
|---|---|---|
| Composition | 19 / 20 | 19 / 20 |
| Spacing and alignment | 16 / 20 | 17 / 20 |
| Typography and expression | 16 / 20 | 17 / 20 |
| Color and surfaces | 18 / 20 | 18 / 20 |
| Control styling | 15 / 20 | 16 / 20 |
Subscores retain their original scale; the axis score uses a consistent conversion.
MaintainabilitySubscores
| Scoring dimension | Claude Haiku 5.5xhigh | GPT-5.6 Solmax |
|---|---|---|
| Semantic clarity | 15 / 20 | 15 / 20 |
| Control-flow organization | 20 / 20 | 19 / 20 |
| Locality of changes | 17 / 20 | 17 / 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.