Model comparison
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Differences vs. Claude Fable 5.2 · max
Score, cost & time differences
Current baseline · Claude Fable 5.2 · max
94.00Overall
Compared with Claude Fable 5.2 · max
- gpt-6.2-astra · max
Overall: −1 ptsReference cost $16.64 ($65.35 less)Evaluation time 94m 34s (256m 59s 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-6.2-astra · max |
|---|---|---|
| Overall | Claude Fable 5.2max 94.00 | gpt-6.2-astramax 93.00−1 pts |
| Backend engineering | Claude Fable 5.2max 97 | gpt-6.2-astramax 97Tied |
| Frontend interaction | Claude Fable 5.2max 96 | gpt-6.2-astramax 97+1 pts |
| Knowledge & reasoning | Claude Fable 5.2max 100 | gpt-6.2-astramax 95−5 pts |
| Visual aesthetics | Claude Fable 5.2max 83 | gpt-6.2-astramax 83Tied |
| Maintainability | Claude Fable 5.2max 73 | gpt-6.2-astramax 78+5 pts |
Complete evaluation · Evaluation consumption, not a monthly subscription fee
Cost & time
Complete evaluation| Metric | Claude Fable 5.2 · max | gpt-6.2-astra · max |
|---|---|---|
| Reference cost | Claude Fable 5.2max $81.98 | gpt-6.2-astramax $16.64Cost calculation basisEstimated from this evaluation’s token usage at GPT-6 Astra Standard rates: $10 input, $50 output and $1 cached input per million tokens. This is a reference cost for GPT-6.2 Astra, not its quoted price or your actual bill.View reference rates ↗−$65.35 |
| Evaluation time | Claude Fable 5.2max 351m 33s | gpt-6.2-astramax 94m 34s−73.1% |
Capability profiles
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Behind each score
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Backend engineeringSubscores
| Scoring dimension | Claude Fable 5.2max | gpt-6.2-astramax |
|---|---|---|
| Contracts and boundaries | 18 / 20 | 19 / 20 |
| Retries and failures | 20 / 20 | 20 / 20 |
| CI and adversarial review | 19 / 20 | 18 / 20 |
| Transactions and consistency | 20 / 20 | 20 / 20 |
| Caching and regression | 20 / 20 | 20 / 20 |
Frontend interactionSubscores
| Scoring dimension | Claude Fable 5.2max | gpt-6.2-astramax |
|---|---|---|
| Layout and adaptation | 20 / 20 | 18 / 20 |
| Interaction behavior | 19 / 20 | 20 / 20 |
| State continuity | 20 / 20 | 20 / 20 |
| Accessibility and feedback | 15 / 15 | 12 / 15 |
| State validation and regression | 22 / 25 | 21 / 25 |
Knowledge & reasoningSubscores
| Scoring dimension | Claude Fable 5.2max | gpt-6.2-astramax |
|---|---|---|
| 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 Fable 5.2max | gpt-6.2-astramax |
|---|---|---|
| Composition | 20 / 20 | 20 / 20 |
| Spacing and alignment | 19 / 20 | 19 / 20 |
| Typography and expression | 17 / 20 | 17 / 20 |
| Color and surfaces | 19 / 20 | 19 / 20 |
| Control styling | 19 / 20 | 19 / 20 |
Subscores retain their original scale; the axis score uses a consistent conversion.
MaintainabilitySubscores
| Scoring dimension | Claude Fable 5.2max | gpt-6.2-astramax |
|---|---|---|
| Semantic clarity | 18 / 20 | 18 / 20 |
| Control-flow organization | 20 / 20 | 20 / 20 |
| Locality of changes | 17 / 20 | 18 / 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.