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Step 5 PreviewMuse Spark 1.2 vs Gemini 3 Pro
- Muse Spark 1.2 and Gemini 3 Pro are level on LMArena’s text leaderboard (1482 and 1480).
- On the 5 Vals AI benchmarks both have taken, Muse Spark 1.2 wins 2 and Gemini 3 Pro wins 3 (Muse Spark 1.2: SWE-bench, Vibe Code Bench).
LatestMuse Spark 1.2 1482Gemini 3 Pro 1480
Side by side
Models (2/6)
- Muse Spark 1.2
- Gemini 3 Pro
| Benchmark | Muse Spark 1.2 | Gemini 3 Pro |
|---|---|---|
| The model | ||
| Lab | Meta | |
| Released | 2026-08-05 | — |
| Weights | Proprietary | Proprietary |
| Context window | 1M | — |
| Input, per 1M tokens | $1.25 | — |
| Output, per 1M tokens | $4.25 | — |
| LMArena, people’s votes | ||
| LMArena TextMillions of people compare two anonymous models side by side and vote for the better answer | 1482#17 of 351 | 1480#21 of 351 |
| LMArena WebDevPeople ask two anonymous models to build the same web app, try both and vote for the better one | 1533#52 of 124 | 1440#80 of 124 |
| LMArena VisionSide-by-side votes on prompts that include an image | 1304#17 of 146 | 1305#16 of 146 |
| LMArena CodingLMArena’s text votes on prompts that ask for code | 1505#18 of 346 | 1481#55 of 346 |
| LMArena MathLMArena’s text votes on math prompts | 1483#31 of 339 | 1476#38 of 339 |
| LMArena Creative writingLMArena’s text votes on stories, poems and other creative writing | 1435#56 of 349 | 1483#13 of 349 |
| LMArena Hard promptsLMArena’s text votes on the hardest prompts | 1490#20 of 351 | 1480#39 of 351 |
| LMArena Instruction followingLMArena’s text votes on prompts with specific instructions to follow | 1463#39 of 351 | 1458#43 of 351 |
| Vals AI, coding | ||
| Terminal-Bench 4.0Frontier-difficulty tasks an agent completes in a real terminal | 6.06%#46 of 55 | — |
| SWE-benchReal GitHub issues from open-source projects | 86.60%#14 of 85 | 76.40%#37 of 85 |
| Vibe Code BenchBuilding complete web apps from a plain-language brief, graded on whether the app works | 79.10%#27 of 115 | 14.30%#91 of 115 |
| LiveCodeBenchFresh competitive programming problems, collected after models’ training cut-offs to avoid contamination | — | 86.41%#23 of 143 |
| Vals AI, finance | ||
| Tax Agent BenchAgentic research into US corporate tax questions | 32.80%#17 of 76 | — |
| Vals AI, law | ||
| Legal Research BenchAgentic US legal research | 43.75%#22 of 85 | — |
| Vals AI, medicine | ||
| MedCodeAssigning the right medical billing codes from clinical notes | 49.35%#24 of 107 | 52.20%#14 of 107 |
| MedQAMedical licensing exam questions, measured on accuracy and on robustness to bias | — | 96.03%#8 of 92 |
| Vals AI, reasoning | ||
| GPQA DiamondGraduate-level questions in biology, physics and chemistry that experts answer well and search does not | — | 91.67%#19 of 138 |
| MMLU-ProHarder, reasoning-focused multiple choice across 14 subjects, from law to engineering | 88.28%#20 of 138 | 90.10%#7 of 138 |
| AIMEProblems from the American Invitational Mathematics Examination, a qualifier for the US Math Olympiad | — | 96.68%#4 of 96 |
| MMMUCollege-level questions that need both an image and text | 86.13%#22 of 93 | 87.51%#14 of 93 |
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Questions
Which is better, Muse Spark 1.2 or Gemini 3 Pro?
Muse Spark 1.2 and Gemini 3 Pro are level on LMArena’s text leaderboard (1482 and 1480). On the 5 Vals AI benchmarks both have taken, Muse Spark 1.2 wins 2 and Gemini 3 Pro wins 3 (Muse Spark 1.2: SWE-bench, Vibe Code Bench).