Model comparison
Gemini 2.5 Flash vs Muse Glimmer
Muse Glimmer is the stronger model overall, scoring 41.7 to 39.3 on the Noometry Index.
Last verified . 13 shared benchmarks.
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MetaSummary
- They share 13 benchmarks with published results for both. Gemini 2.5 Flash scores higher in 4 categories and Muse Glimmer in 4 categories; 8 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where Muse Glimmer leads 25.7 to 18.1.
- Muse Glimmer has downloadable open weights; the other is API-only.
Side by side
| Gemini 2.5 Flash | Muse Glimmer | |
|---|---|---|
| Provider | Meta | |
| Noometry Index | 39.3 | 41.7 |
| Released | 2025-04-17 | 2026-08-10 |
| Weights | Proprietary | Open |
| Context window | 1.05M | — |
| Max output | 66K | — |
| Input $ / M tokens | $0.30 | — |
| Output $ / M tokens | $2.50 | — |
| Results tracked | 54 | 15 |
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Category by category
Coding Muse Glimmer leads
Gemini 2.5 Flash: 35.8 (#220), Muse Glimmer: 40.4 (#142)
| Benchmark | Gemini 2.5 Flash | Muse Glimmer |
|---|---|---|
| LMArena Coding | 1424 | 1416 |
| SWE-bench Verified (bash only) | 28.7% | — |
| Aider Polyglot | 55.1% | — |
| LMArena WebDev | — | 1355 |
| SciCode | — | 44.9% |
| WeirdML | 41.9% | — |
| ALE-Bench | 661.88 | — |
Agentic & Tool Use Not comparable
Gemini 2.5 Flash: 30.8 (#74), Muse Glimmer: —
| Benchmark | Gemini 2.5 Flash | Muse Glimmer |
|---|---|---|
| Terminal-Bench | 17.1% | — |
| Berkeley Function Calling Leaderboard | 56.2% | — |
| TheAgentCompany | 41.1% | — |
| BALROG | 33.5% | — |
| Vending-Bench 2 | 548.84 | — |
Reasoning Muse Glimmer leads
Gemini 2.5 Flash: 18.1 (#286), Muse Glimmer: 25.7 (#144)
| Benchmark | Gemini 2.5 Flash | Muse Glimmer |
|---|---|---|
| CritPt | 1.1% | 2.6% |
| LMArena Hard Prompts | 1422 | 1396 |
| ARC-AGI-2 | 2.5% | — |
| SimpleBench | 41.2% | — |
| Kagi LLM Benchmark | 56.8% | — |
| ARC-AGI-1 | 33.3% | — |
| EnigmaEval | 2.7% | — |
| DTBench | 76.5% | — |
| LMCA | 27.5% | — |
| Epoch Capabilities Index | 143.03 | — |
| ForecastBench | 60.6 | — |
Math Gemini 2.5 Flash leads
Gemini 2.5 Flash: 39.9 (#98), Muse Glimmer: 38.8 (#125)
| Benchmark | Gemini 2.5 Flash | Muse Glimmer |
|---|---|---|
| LMArena Math | 1415 | 1417 |
| OTIS Mock AIME 2024-2025 | 73.1% | — |
| Omni-MATH | 38.5% | — |
| FrontierMath (Feb 2025 set) | 4.8% | — |
| FrontierMath Tier 4 (v1) | 4.2% | — |
Knowledge Muse Glimmer leads
Gemini 2.5 Flash: 36.4 (#168), Muse Glimmer: 38.5 (#143)
| Benchmark | Gemini 2.5 Flash | Muse Glimmer |
|---|---|---|
| LMArena Expert | 1426 | 1386 |
| Humanity's Last Exam | 12.1% | — |
| MMLU-Pro | 63.9% | — |
| Confabulations | 16.8% | — |
| Vectara Hallucination Rate | 7.8% | — |
| GPQA (HELM) | 39% | — |
Multimodal Not comparable
Gemini 2.5 Flash: 41.8 (#32), Muse Glimmer: —
| Benchmark | Gemini 2.5 Flash | Muse Glimmer |
|---|---|---|
| LMArena Vision | 1253 | — |
| GeoBench | 76% | — |
| VPCT | 46.2% | — |
| SpatialViz-Bench | 36.9% | — |
Multilingual Gemini 2.5 Flash leads
Gemini 2.5 Flash: 52.3 (#88), Muse Glimmer: 50.5 (#122)
| Benchmark | Gemini 2.5 Flash | Muse Glimmer |
|---|---|---|
| LMArena Non-English | 1409 | 1384 |
| LMArena Chinese | 1450 | 1412 |
| LMArena Russian | 1415 | 1390 |
| LMArena French | 1433 | — |
| LMArena German | 1418 | — |
| LMArena Japanese | 1405 | — |
| LMArena Korean | 1385 | — |
| LMArena Spanish | 1421 | — |
Instruction Following Gemini 2.5 Flash leads
Gemini 2.5 Flash: 75.7 (#54), Muse Glimmer: 72.6 (#135)
| Benchmark | Gemini 2.5 Flash | Muse Glimmer |
|---|---|---|
| LMArena Instruction Following | 1405 | 1375 |
| IFEval | 89.8% | — |
Long Context Gemini 2.5 Flash leads
Gemini 2.5 Flash: 47.5 (#17), Muse Glimmer: 42.1 (#129)
| Benchmark | Gemini 2.5 Flash | Muse Glimmer |
|---|---|---|
| LMArena Longer Query | 1419 | 1382 |
| Fiction.LiveBench | 77.8% | — |
Writing & Preference Muse Glimmer leads
Gemini 2.5 Flash: 53.8 (#157), Muse Glimmer: 57.5 (#126)
| Benchmark | Gemini 2.5 Flash | Muse Glimmer |
|---|---|---|
| LMArena Text | 1417 | 1389 |
| LMArena Creative Writing | 1400 | 1339 |
| LMArena Multi-Turn | 1408 | 1399 |
| Short-Story Creative Writing | 76.5% | — |
| EQ-Bench Creative Writing | 1137 | — |
| WildBench | 81.7% | — |
Frequently asked questions
Is Gemini 2.5 Flash better than Muse Glimmer?
Muse Glimmer is the stronger model overall, scoring 41.7 to 39.3 on the Noometry Index.
Is Gemini 2.5 Flash or Muse Glimmer better for coding?
Muse Glimmer scores higher on coding benchmarks: 40.4 versus 35.8 in the Noometry coding category.
How many benchmarks do Gemini 2.5 Flash and Muse Glimmer share?
13 benchmarks have published results for both models. Gemini 2.5 Flash has 54 scored results on Noometry and Muse Glimmer has 15.