Model comparison
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Differences vs. DeepSeek V4 Flash · high
Score, cost & time differences
Current baseline · DeepSeek V4 Flash · high
58.00Overall
Compared with DeepSeek V4 Flash · high
- LongCat-2.5 · default
Overall: +3.35 ptsComparable cost unavailableEvaluation time 94m 48s (3m 37s less)
Differences reflect these evaluation tasks. Cost and time cover the same dimension, not a typical conversation. Scoring & cost notes
| Metric | DeepSeek V4 Flash · high | LongCat-2.5 · default |
|---|---|---|
| Overall | DeepSeek V4 Flashhigh 58.00 | LongCat-2.5default 61.35+3.35 pts |
| Backend engineering | DeepSeek V4 Flashhigh 53 | LongCat-2.5default 44−9 pts |
| Frontend interaction | DeepSeek V4 Flashhigh 67 | LongCat-2.5default 62−5 pts |
| Knowledge & reasoning | DeepSeek V4 Flashhigh 55 | LongCat-2.5default 75+20 pts |
| Visual aesthetics | DeepSeek V4 Flashhigh 61 | LongCat-2.5default 55−6 pts |
| Maintainability | DeepSeek V4 Flashhigh 53 | LongCat-2.5default 53Tied |
Complete evaluation · Evaluation consumption, not a monthly subscription fee
Cost & time
Complete evaluation| Metric | DeepSeek V4 Flash · high | LongCat-2.5 · default |
|---|---|---|
| Cost | DeepSeek V4 Flashhigh $0.42 | LongCat-2.5default $0.68 |
| Evaluation time | DeepSeek V4 Flashhigh 98m 25s | LongCat-2.5default 94m 48s−3.7% |
Capability profiles
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Behind each score
Expand to inspect each subaxis.
Backend engineeringSubscores
| Scoring dimension | DeepSeek V4 Flashhigh | LongCat-2.5default |
|---|---|---|
| Contracts and boundaries | 8 / 20 | 7 / 20 |
| Retries and failures | 16 / 20 | 14 / 20 |
| CI and adversarial review | 11 / 20 | 12 / 20 |
| Transactions and consistency | 10 / 20 | 0 / 20 |
| Caching and regression | 8 / 20 | 11 / 20 |
Frontend interactionSubscores
| Scoring dimension | DeepSeek V4 Flashhigh | LongCat-2.5default |
|---|---|---|
| Layout and adaptation | 16 / 20 | 13 / 20 |
| Interaction behavior | 16 / 20 | 15 / 20 |
| State continuity | 12 / 20 | 10 / 20 |
| Accessibility and feedback | 8 / 15 | 7 / 15 |
| State validation and regression | 15 / 25 | 17 / 25 |
Knowledge & reasoningSubscores
| Scoring dimension | DeepSeek V4 Flashhigh | LongCat-2.5default |
|---|---|---|
| Mathematical reasoning | 10 / 15 | — |
| Computer science & AI | 10 / 15 | — |
| Science and engineering | 5 / 10 | — |
| Life sciences and medicine | 15 / 20 | — |
| Humanities and general knowledge | 15 / 40 | — |
Visual aestheticsSubscores
| Scoring dimension | DeepSeek V4 Flashhigh | LongCat-2.5default |
|---|---|---|
| Composition | 19 / 20 | 17 / 20 |
| Spacing and alignment | 15 / 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 | DeepSeek V4 Flashhigh | 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 | 16 / 20 | 17 / 20 |
| Implementation economy | 16 / 20 | 18 / 20 |
Subscores retain their original scale; the axis score uses a consistent conversion.