Model comparison
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Differences vs. Claude Fable 5.2 · max
Score, cost & time differences
Current baseline · Claude Fable 5.2 · max
96Frontend interaction
Compared with Claude Fable 5.2 · max
- GPT-6 Astra · high
Frontend interaction: tiedCost $0.72 ($22.81 less)Evaluation time 21m 14s (83m 16s less)
Differences reflect these evaluation tasks. Cost and time cover the same dimension, not a typical conversation. Scoring & cost notes
| Metric | Claude Fable 5.2 · max | GPT-6 Astra · high |
|---|---|---|
| Frontend interaction | Claude Fable 5.2max 96 | GPT-6 Astrahigh 96Tied |
| Overall | Claude Fable 5.2max 94.00 | GPT-6 Astrahigh 86.15−7.85 pts |
| Backend engineering | Claude Fable 5.2max 97 | GPT-6 Astrahigh 92−5 pts |
| Knowledge & reasoning | Claude Fable 5.2max 100 | GPT-6 Astrahigh 85−15 pts |
| Visual aesthetics | Claude Fable 5.2max 83 | GPT-6 Astrahigh 70−13 pts |
| Maintainability | Claude Fable 5.2max 73 | GPT-6 Astrahigh 70−3 pts |
Frontend interaction evaluation · Evaluation consumption, not a monthly subscription fee
Cost & time
Frontend interaction evaluation| Metric | Claude Fable 5.2 · max | GPT-6 Astra · high |
|---|---|---|
| Cost | Claude Fable 5.2max $23.53 | GPT-6 Astrahigh $0.72−$22.81 |
| Evaluation time | Claude Fable 5.2max 104m 30s | GPT-6 Astrahigh 21m 14s−79.7% |
Capability profiles
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Behind each score
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Backend engineeringSubscores
| Scoring dimension | Claude Fable 5.2max | GPT-6 Astrahigh |
|---|---|---|
| Contracts and boundaries | 18 / 20 | 19 / 20 |
| Retries and failures | 20 / 20 | 19 / 20 |
| CI and adversarial review | 19 / 20 | 16 / 20 |
| Transactions and consistency | 20 / 20 | 18 / 20 |
| Caching and regression | 20 / 20 | 20 / 20 |
Frontend interactionSubscores
| Scoring dimension | Claude Fable 5.2max | GPT-6 Astrahigh |
|---|---|---|
| Layout and adaptation | 20 / 20 | 20 / 20 |
| Interaction behavior | 19 / 20 | 20 / 20 |
| State continuity | 20 / 20 | 20 / 20 |
| Accessibility and feedback | 15 / 15 | 15 / 15 |
| State validation and regression | 22 / 25 | 21 / 25 |
Knowledge & reasoningSubscores
| Scoring dimension | Claude Fable 5.2max | GPT-6 Astrahigh |
|---|---|---|
| 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 | 30 / 40 |
Visual aestheticsSubscores
| Scoring dimension | Claude Fable 5.2max | GPT-6 Astrahigh |
|---|---|---|
| Composition | 20 / 20 | 19 / 20 |
| Spacing and alignment | 19 / 20 | 15 / 20 |
| Typography and expression | 17 / 20 | 19 / 20 |
| Color and surfaces | 19 / 20 | 19 / 20 |
| Control styling | 19 / 20 | 17 / 20 |
Subscores retain their original scale; the axis score uses a consistent conversion.
MaintainabilitySubscores
| Scoring dimension | Claude Fable 5.2max | GPT-6 Astrahigh |
|---|---|---|
| Semantic clarity | 18 / 20 | 16 / 20 |
| Control-flow organization | 20 / 20 | 20 / 20 |
| Locality of changes | 17 / 20 | 17 / 20 |
| State and lifecycle | 18 / 20 | 18 / 20 |
| Implementation economy | 17 / 20 | 18 / 20 |
Subscores retain their original scale; the axis score uses a consistent conversion.