Model comparison
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Differences vs. Claude Opus 5.5 · max
Score, cost & time differences
Current baseline · Claude Opus 5.5 · max
89.75Overall
Compared with Claude Opus 5.5 · max
- GPT-6.1 Sol · max
Overall: −1.65 ptsCost $1.69 ($11.72 less)Evaluation time 62m 9s (3m 53s less)
Differences reflect these evaluation tasks. Cost and time cover the same dimension, not a typical conversation. Scoring & cost notes
| Metric | Claude Opus 5.5 · max | GPT-6.1 Sol · max |
|---|---|---|
| Overall | Claude Opus 5.5max 89.75 | GPT-6.1 Solmax 88.10−1.65 pts |
| Backend engineering | Claude Opus 5.5max 81 | GPT-6.1 Solmax 95+14 pts |
| Frontend interaction | Claude Opus 5.5max 97 | GPT-6.1 Solmax 96−1 pts |
| Knowledge & reasoning | Claude Opus 5.5max 100 | GPT-6.1 Solmax 90−10 pts |
| Visual aesthetics | Claude Opus 5.5max 73 | GPT-6.1 Solmax 66−7 pts |
| Maintainability | Claude Opus 5.5max 70 | GPT-6.1 Solmax 70Tied |
Complete evaluation · Evaluation consumption, not a monthly subscription fee
Cost & time
Complete evaluation| Metric | Claude Opus 5.5 · max | GPT-6.1 Sol · max |
|---|---|---|
| Cost | Claude Opus 5.5max $13.41 | GPT-6.1 Solmax $1.69−$11.72 |
| Evaluation time | Claude Opus 5.5max 66m 3s | GPT-6.1 Solmax 62m 9s−5.9% |
Capability profiles
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Behind each score
Expand to inspect each subaxis.
Backend engineeringSubscores
| Scoring dimension | Claude Opus 5.5max | GPT-6.1 Solmax |
|---|---|---|
| Contracts and boundaries | 18 / 20 | 19 / 20 |
| Retries and failures | 16 / 20 | 20 / 20 |
| CI and adversarial review | 16 / 20 | 17 / 20 |
| Transactions and consistency | 16 / 20 | 19 / 20 |
| Caching and regression | 15 / 20 | 20 / 20 |
Frontend interactionSubscores
| Scoring dimension | Claude Opus 5.5max | GPT-6.1 Solmax |
|---|---|---|
| Layout and adaptation | 20 / 20 | 20 / 20 |
| Interaction behavior | 20 / 20 | 20 / 20 |
| State continuity | 20 / 20 | 20 / 20 |
| Accessibility and feedback | 12 / 15 | 13 / 15 |
| State validation and regression | 25 / 25 | 23 / 25 |
Knowledge & reasoningSubscores
| Scoring dimension | Claude Opus 5.5max | GPT-6.1 Solmax |
|---|---|---|
| Mathematical reasoning | 15 / 15 | 15 / 15 |
| Computer science & AI | 15 / 15 | 15 / 15 |
| Science and engineering | 10 / 10 | 10 / 10 |
| Life sciences and medicine | 20 / 20 | 15 / 20 |
| Humanities and general knowledge | 40 / 40 | 35 / 40 |
Visual aestheticsSubscores
| Scoring dimension | Claude Opus 5.5max | GPT-6.1 Solmax |
|---|---|---|
| Composition | 19 / 20 | 19 / 20 |
| Spacing and alignment | 18 / 20 | 15 / 20 |
| Typography and expression | 18 / 20 | 18 / 20 |
| Color and surfaces | 19 / 20 | 19 / 20 |
| Control styling | 16 / 20 | 16 / 20 |
Subscores retain their original scale; the axis score uses a consistent conversion.
MaintainabilitySubscores
| Scoring dimension | Claude Opus 5.5max | GPT-6.1 Solmax |
|---|---|---|
| Semantic clarity | 16 / 20 | 15 / 20 |
| Control-flow organization | 20 / 20 | 19 / 20 |
| Locality of changes | 18 / 20 | 18 / 20 |
| State and lifecycle | 18 / 20 | 20 / 20 |
| Implementation economy | 17 / 20 | 17 / 20 |
Subscores retain their original scale; the axis score uses a consistent conversion.