Model comparison
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Differences vs. Muse Spark 1.3 · default
Score, cost & time differences
Current baseline · Muse Spark 1.3 · default
85Frontend interaction
Compared with Muse Spark 1.3 · default
- Gemini 4 Hydrogen · xhigh
Frontend interaction: tiedCost $0.64 ($0.62 more)Evaluation time 6m 4s (2m 46s more)
Differences reflect these evaluation tasks. Cost and time cover the same dimension, not a typical conversation. Scoring & cost notes
| Metric | Muse Spark 1.3 · default | Gemini 4 Hydrogen · xhigh |
|---|---|---|
| Frontend interaction | Muse Spark 1.3default 85 | Gemini 4 Hydrogenxhigh 85Tied |
| Overall | Muse Spark 1.3default 71.70 | Gemini 4 Hydrogenxhigh 80.70+9 pts |
| Backend engineering | Muse Spark 1.3default 68 | Gemini 4 Hydrogenxhigh 83+15 pts |
| Knowledge & reasoning | Muse Spark 1.3default 75 | Gemini 4 Hydrogenxhigh 85+10 pts |
| Visual aesthetics | Muse Spark 1.3default 59 | Gemini 4 Hydrogenxhigh 70+11 pts |
| Maintainability | Muse Spark 1.3default 47 | Gemini 4 Hydrogenxhigh 61+14 pts |
Frontend interaction evaluation · Evaluation consumption, not a monthly subscription fee
Cost & time
Frontend interaction evaluation| Metric | Muse Spark 1.3 · default | Gemini 4 Hydrogen · xhigh |
|---|---|---|
| Cost | Muse Spark 1.3default $0.014 | Gemini 4 Hydrogenxhigh $0.64+$0.62 |
| Evaluation time | Muse Spark 1.3default 3m 18s | Gemini 4 Hydrogenxhigh 6m 4s+84.1% |
Capability profiles
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Behind each score
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Backend engineeringSubscores
| Scoring dimension | Muse Spark 1.3default | Gemini 4 Hydrogenxhigh |
|---|---|---|
| Contracts and boundaries | 13 / 20 | 13 / 20 |
| Retries and failures | 17 / 20 | 17 / 20 |
| CI and adversarial review | 12 / 20 | 18 / 20 |
| Transactions and consistency | 17 / 20 | 18 / 20 |
| Caching and regression | 9 / 20 | 17 / 20 |
Frontend interactionSubscores
| Scoring dimension | Muse Spark 1.3default | Gemini 4 Hydrogenxhigh |
|---|---|---|
| Layout and adaptation | 18 / 20 | — |
| Interaction behavior | 18 / 20 | — |
| State continuity | 15 / 20 | — |
| Accessibility and feedback | 15 / 15 | — |
| State validation and regression | 19 / 25 | — |
Knowledge & reasoningSubscores
| Scoring dimension | Muse Spark 1.3default | Gemini 4 Hydrogenxhigh |
|---|---|---|
| Mathematical reasoning | 15 / 15 | 15 / 15 |
| Computer science & AI | 10 / 15 | 10 / 15 |
| Science and engineering | 0 / 10 | 10 / 10 |
| Life sciences and medicine | 20 / 20 | 15 / 20 |
| Humanities and general knowledge | 30 / 40 | 35 / 40 |
Visual aestheticsSubscores
| Scoring dimension | Muse Spark 1.3default | Gemini 4 Hydrogenxhigh |
|---|---|---|
| Composition | 17 / 20 | 19 / 20 |
| Spacing and alignment | 16 / 20 | 17 / 20 |
| Typography and expression | 17 / 20 | 18 / 20 |
| Color and surfaces | 19 / 20 | 19 / 20 |
| Control styling | 15 / 20 | 16 / 20 |
Subscores retain their original scale; the axis score uses a consistent conversion.
MaintainabilitySubscores
| Scoring dimension | Muse Spark 1.3default | Gemini 4 Hydrogenxhigh |
|---|---|---|
| Semantic clarity | 14 / 20 | 16 / 20 |
| Control-flow organization | 19 / 20 | 20 / 20 |
| Locality of changes | 14 / 20 | 15 / 20 |
| State and lifecycle | 16 / 20 | 17 / 20 |
| Implementation economy | 15 / 20 | 17 / 20 |
Subscores retain their original scale; the axis score uses a consistent conversion.