Model comparison
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Differences vs. Claude Haiku 5.5 · xhigh
Score, cost & time differences
Current baseline · Claude Haiku 5.5 · xhigh
59Visual aesthetics
Compared with Claude Haiku 5.5 · xhigh
- HY4 · default
Visual aesthetics: 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 | HY4 · default |
|---|---|---|
| Visual aesthetics | Claude Haiku 5.5xhigh 59 | HY4default 59Tied |
| Overall | Claude Haiku 5.5xhigh 65.30 | HY4default 75.80+10.5 pts |
| Backend engineering | Claude Haiku 5.5xhigh 65 | HY4default 90+25 pts |
| Frontend interaction | Claude Haiku 5.5xhigh 76 | HY4default 77+1 pts |
| Knowledge & reasoning | Claude Haiku 5.5xhigh 60 | HY4default 75+15 pts |
| Maintainability | Claude Haiku 5.5xhigh 64 | HY4default 64Tied |
Visual aesthetics evaluation · Evaluation consumption, not a monthly subscription fee
Cost & time
Visual aesthetics evaluation| Metric | Claude Haiku 5.5 · xhigh | HY4 · default |
|---|---|---|
| Cost | Claude Haiku 5.5xhigh N/A | HY4default N/A |
| Evaluation time | Claude Haiku 5.5xhigh — | HY4default — |
Capability profiles
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Behind each score
Expand to inspect each subaxis.
Backend engineeringSubscores
| Scoring dimension | Claude Haiku 5.5xhigh | HY4default |
|---|---|---|
| Contracts and boundaries | 15 / 20 | 18 / 20 |
| Retries and failures | 15 / 20 | 20 / 20 |
| CI and adversarial review | 12 / 20 | 16 / 20 |
| Transactions and consistency | 12 / 20 | 19 / 20 |
| Caching and regression | 11 / 20 | 17 / 20 |
Frontend interactionSubscores
| Scoring dimension | Claude Haiku 5.5xhigh | HY4default |
|---|---|---|
| Layout and adaptation | 18 / 20 | 18 / 20 |
| Interaction behavior | 18 / 20 | 18 / 20 |
| State continuity | 15 / 20 | 13 / 20 |
| Accessibility and feedback | 10 / 15 | 13 / 15 |
| State validation and regression | 15 / 25 | 15 / 25 |
Knowledge & reasoningSubscores
| Scoring dimension | Claude Haiku 5.5xhigh | HY4default |
|---|---|---|
| Mathematical reasoning | 10 / 15 | — |
| Computer science & AI | 5 / 15 | — |
| Science and engineering | 5 / 10 | — |
| Life sciences and medicine | 15 / 20 | — |
| Humanities and general knowledge | 25 / 40 | 75 / 100 |
Visual aestheticsSubscores
| Scoring dimension | Claude Haiku 5.5xhigh | HY4default |
|---|---|---|
| Composition | 19 / 20 | 19 / 20 |
| Spacing and alignment | 16 / 20 | 15 / 20 |
| Typography and expression | 16 / 20 | 15 / 20 |
| Color and surfaces | 18 / 20 | 20 / 20 |
| Control styling | 15 / 20 | 15 / 20 |
Subscores retain their original scale; the axis score uses a consistent conversion.
MaintainabilitySubscores
| Scoring dimension | Claude Haiku 5.5xhigh | HY4default |
|---|---|---|
| Semantic clarity | 15 / 20 | 15 / 20 |
| Control-flow organization | 20 / 20 | 20 / 20 |
| Locality of changes | 17 / 20 | 15 / 20 |
| State and lifecycle | 18 / 20 | 17 / 20 |
| Implementation economy | 16 / 20 | 19 / 20 |
Subscores retain their original scale; the axis score uses a consistent conversion.