Model comparison
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Differences vs. Crouton Alpha · default
Score, cost & time differences
Current baseline · Crouton Alpha · default
45Backend engineering
Compared with Crouton Alpha · default
- LongCat-2.5 · default
Backend engineering: −1 ptsComparable cost unavailableEvaluation time 39m 17s (37m 55s more)
Differences reflect these evaluation tasks. Cost and time cover the same dimension, not a typical conversation. Scoring & cost notes
| Metric | Crouton Alpha · default | LongCat-2.5 · default |
|---|---|---|
| Backend engineering | Crouton Alphadefault 45 | LongCat-2.5default 44−1 pts |
| Overall | Crouton Alphadefault 51.95 | LongCat-2.5default 61.35+9.4 pts |
| Frontend interaction | Crouton Alphadefault 64 | LongCat-2.5default 62−2 pts |
| Knowledge & reasoning | Crouton Alphadefault 45 | LongCat-2.5default 75+30 pts |
| Visual aesthetics | Crouton Alphadefault 59 | LongCat-2.5default 55−4 pts |
| Maintainability | Crouton Alphadefault 53 | LongCat-2.5default 53Tied |
Backend engineering evaluation · Evaluation consumption, not a monthly subscription fee
Cost & time
Backend engineering evaluation| Metric | Crouton Alpha · default | LongCat-2.5 · default |
|---|---|---|
| Cost | Crouton Alphadefault N/A | LongCat-2.5default $0.21 |
| Evaluation time | Crouton Alphadefault 1m 22s | LongCat-2.5default 39m 17s+2763.3% |
Capability profiles
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Behind each score
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Backend engineeringSubscores
| Scoring dimension | Crouton Alphadefault | LongCat-2.5default |
|---|---|---|
| Contracts and boundaries | 0 / 20 | 7 / 20 |
| Retries and failures | 14 / 20 | 14 / 20 |
| CI and adversarial review | 9 / 20 | 12 / 20 |
| Transactions and consistency | 13 / 20 | 0 / 20 |
| Caching and regression | 9 / 20 | 11 / 20 |
Frontend interactionSubscores
| Scoring dimension | Crouton Alphadefault | LongCat-2.5default |
|---|---|---|
| Layout and adaptation | 15 / 20 | 13 / 20 |
| Interaction behavior | 13 / 20 | 15 / 20 |
| State continuity | 13 / 20 | 10 / 20 |
| Accessibility and feedback | 9 / 15 | 7 / 15 |
| State validation and regression | 14 / 25 | 17 / 25 |
Knowledge & reasoningSubscores
| Scoring dimension | Crouton Alphadefault | LongCat-2.5default |
|---|---|---|
| Mathematical reasoning | 10 / 15 | — |
| Computer science & AI | 0 / 15 | — |
| Science and engineering | 5 / 10 | — |
| Life sciences and medicine | 20 / 20 | — |
| Humanities and general knowledge | 10 / 40 | — |
Visual aestheticsSubscores
| Scoring dimension | Crouton Alphadefault | LongCat-2.5default |
|---|---|---|
| Composition | 19 / 20 | 17 / 20 |
| Spacing and alignment | 14 / 20 | 15 / 20 |
| Typography and expression | 16 / 20 | 17 / 20 |
| Color and surfaces | 19 / 20 | 17 / 20 |
| Control styling | 16 / 20 | 16 / 20 |
Subscores retain their original scale; the axis score uses a consistent conversion.
MaintainabilitySubscores
| Scoring dimension | Crouton Alphadefault | LongCat-2.5default |
|---|---|---|
| Semantic clarity | 15 / 20 | 14 / 20 |
| Control-flow organization | 19 / 20 | 18 / 20 |
| Locality of changes | 15 / 20 | 14 / 20 |
| State and lifecycle | 17 / 20 | 17 / 20 |
| Implementation economy | 15 / 20 | 18 / 20 |
Subscores retain their original scale; the axis score uses a consistent conversion.