Model comparison
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Available modelsSelected 2 / 5
Differences vs. k2.8 · high
Score, cost & time differences
Current baseline · k2.8 · high
54Backend engineering
Compared with k2.8 · high
- glm-5.3-flash · high
Backend engineering: +1 ptsReference cost $0.018 ($0.19 less)Evaluation time 21m 43s (0m 31s less)
Differences reflect these evaluation tasks. Cost and time cover the same dimension, not a typical conversation. Scoring & cost notes
| Metric | k2.8 · high | glm-5.3-flash · high |
|---|---|---|
| Backend engineering | k2.8high 54 | glm-5.3-flashhigh 55+1 pts |
| Overall | k2.8high 63.55 | glm-5.3-flashhigh 49.60−13.95 pts |
| Frontend interaction | k2.8high 72 | glm-5.3-flashhigh 76+4 pts |
| Knowledge & Reasoning | k2.8high 70 | glm-5.3-flashhigh 20−50 pts |
| Visual aesthetics | k2.8high 57 | glm-5.3-flashhigh 70+13 pts |
| Maintainability | k2.8high 53 | glm-5.3-flashhigh 59+6 pts |
Backend engineering evaluation · Evaluation consumption, not a monthly subscription fee
Cost & time
Backend engineering evaluation| Metric | k2.8 · high | glm-5.3-flash · high |
|---|---|---|
| Reference cost | k2.8high $0.21 | glm-5.3-flashhigh $0.018−$0.19 |
| Evaluation time | k2.8high 22m 14s | glm-5.3-flashhigh 21m 43s−2.3% |
Capability profiles
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Behind each score
Expand to inspect each subaxis.
Backend engineeringSubscores
| Scoring dimension | k2.8high | glm-5.3-flashhigh |
|---|---|---|
| Contracts and boundaries | 9 / 20 | 6 / 20 |
| Retries and failures | 15 / 20 | 12 / 20 |
| CI and adversarial review | 14 / 20 | 13 / 20 |
| Transactions and consistency | 9 / 20 | 10 / 20 |
| Caching and regression | 7 / 20 | 14 / 20 |
Frontend interactionSubscores
| Scoring dimension | k2.8high | glm-5.3-flashhigh |
|---|---|---|
| Layout and adaptation | 16 / 20 | 18 / 20 |
| Interaction behavior | 18 / 20 | 20 / 20 |
| State continuity | 15 / 20 | 15 / 20 |
| Accessibility and feedback | 10 / 15 | 9 / 15 |
| State validation and regression | 13 / 25 | 14 / 25 |
Knowledge & ReasoningSubscores
| Scoring dimension | k2.8high | glm-5.3-flashhigh |
|---|---|---|
| Mathematical reasoning | 5 / 15 | 5 / 15 |
| Computer science & AI | 5 / 15 | 5 / 15 |
| Science and engineering | 5 / 10 | 0 / 10 |
| Life sciences and medicine | 20 / 20 | 5 / 20 |
| Humanities and general knowledge | 35 / 40 | 5 / 40 |
Visual aestheticsSubscores
| Scoring dimension | k2.8high | glm-5.3-flashhigh |
|---|---|---|
| Composition | 16 / 20 | 20 / 20 |
| Spacing and alignment | 17 / 20 | 16 / 20 |
| Typography and expression | 16 / 20 | 17 / 20 |
| Color and surfaces | 19 / 20 | 20 / 20 |
| Control styling | 15 / 20 | 16 / 20 |
Subscores retain their original scale; the axis score uses a consistent conversion.
MaintainabilitySubscores
| Scoring dimension | k2.8high | glm-5.3-flashhigh |
|---|---|---|
| Semantic clarity | 14 / 20 | 15 / 20 |
| Control-flow organization | 19 / 20 | 19 / 20 |
| Locality of changes | 15 / 20 | 15 / 20 |
| State and lifecycle | 17 / 20 | 18 / 20 |
| Implementation economy | 16 / 20 | 17 / 20 |
Subscores retain their original scale; the axis score uses a consistent conversion.