Model comparison
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Differences vs. Qwen 3.8 Max · default
Score, cost & time differences
Current baseline · Qwen 3.8 Max · default
64Backend engineering
Compared with Qwen 3.8 Max · default
- k3 · high
Backend engineering: +6 ptsReference cost $0.89 ($0.18 less)Evaluation time 37m 56s (9m 52s less)
Differences reflect these evaluation tasks. Cost and time cover the same dimension, not a typical conversation. Scoring & cost notes
| Metric | Qwen 3.8 Max · default | k3 · high |
|---|---|---|
| Backend engineering | Qwen 3.8 Maxdefault 64 | k3high 70+6 pts |
| Overall | Qwen 3.8 Maxdefault 55.50 | k3high 71.60+16.1 pts |
| Frontend interaction | Qwen 3.8 Maxdefault 69 | k3high 85+16 pts |
| Knowledge & Reasoning | Qwen 3.8 Maxdefault 40 | k3high 70+30 pts |
| Visual aesthetics | Qwen 3.8 Maxdefault 64 | k3high 68+4 pts |
| Maintainability | Qwen 3.8 Maxdefault 53 | k3high 59+6 pts |
Backend engineering evaluation · Evaluation consumption, not a monthly subscription fee
Cost & time
Backend engineering evaluation| Metric | Qwen 3.8 Max · default | k3 · high |
|---|---|---|
| Reference cost | Qwen 3.8 Maxdefault $1.07 | k3high $0.89−$0.18 |
| Evaluation time | Qwen 3.8 Maxdefault 47m 48s | k3high 37m 56s−20.6% |
Capability profiles
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Behind each score
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Backend engineeringSubscores
| Scoring dimension | Qwen 3.8 Maxdefault | k3high |
|---|---|---|
| Contracts and boundaries | 12 / 20 | 16 / 20 |
| Retries and failures | 17 / 20 | 15 / 20 |
| CI and adversarial review | 8 / 20 | 14 / 20 |
| Transactions and consistency | 14 / 20 | 12 / 20 |
| Caching and regression | 13 / 20 | 13 / 20 |
Frontend interactionSubscores
| Scoring dimension | Qwen 3.8 Maxdefault | k3high |
|---|---|---|
| Layout and adaptation | 17 / 20 | 18 / 20 |
| Interaction behavior | 19 / 20 | 20 / 20 |
| State continuity | 8 / 20 | 15 / 20 |
| Accessibility and feedback | 6 / 15 | 13 / 15 |
| State validation and regression | 19 / 25 | 19 / 25 |
Knowledge & ReasoningSubscores
| Scoring dimension | Qwen 3.8 Maxdefault | k3high |
|---|---|---|
| Mathematical reasoning | 10 / 15 | 10 / 15 |
| Computer science & AI | 5 / 15 | 5 / 15 |
| Science and engineering | 5 / 10 | 0 / 10 |
| Life sciences and medicine | 10 / 20 | 20 / 20 |
| Humanities and general knowledge | 10 / 40 | 35 / 40 |
Visual aestheticsSubscores
| Scoring dimension | Qwen 3.8 Maxdefault | k3high |
|---|---|---|
| Composition | 19 / 20 | 19 / 20 |
| Spacing and alignment | 15 / 20 | 17 / 20 |
| Typography and expression | 16 / 20 | 17 / 20 |
| Color and surfaces | 19 / 20 | 18 / 20 |
| Control styling | 17 / 20 | 17 / 20 |
Subscores retain their original scale; the axis score uses a consistent conversion.
MaintainabilitySubscores
| Scoring dimension | Qwen 3.8 Maxdefault | k3high |
|---|---|---|
| Semantic clarity | 15 / 20 | 15 / 20 |
| Control-flow organization | 19 / 20 | 20 / 20 |
| Locality of changes | 15 / 20 | 15 / 20 |
| State and lifecycle | 15 / 20 | 17 / 20 |
| Implementation economy | 17 / 20 | 17 / 20 |
Subscores retain their original scale; the axis score uses a consistent conversion.