Muse Spark 1.2 vs MiMo-V2.6-Flash
Updated October 21, 2026. 54 benchmarks have a result for both. Coding is ranked on the Vibe Coding Index; every other board is shown as published.
Decision reading
Pick Muse Spark 1.2 for coding: it scores 65.1 on the Vibe Coding Index against 61.9 for MiMo-V2.6-Flash.
Pick MiMo-V2.6-Flash when output tokens cost 15.2x less, or when the context window is larger, 1.05M against 1.05M tokens.
- Shared results
- 54
- Muse Spark 1.2 only
- 43
- MiMo-V2.6-Flash only
- 12
- Like-for-like categories
- 7 of 9
Shared results can support a head-to-head reading. Results only one model has describe coverage, not superiority.
Which one for your work
Each card is decided by one number both models carry. Where only one has it, the card says so and makes no call.
Coding
Vibe Coding Index, four public coding benchmarks
Muse Spark 1.2
Muse Spark 1.2 scores 65.1 against 61.9.
2 and 1 benchmarks behind the scores
Intelligence
AA Intelligence Index
Muse Spark 1.2
Muse Spark 1.2 leads, 39.6 against 37.9.
Same board, both measured
Agentic work
AA Agentic Index
No call
Only Muse Spark 1.2 has a AA Agentic Index result, 43.2.
Directional only
Knowledge
MMLU Pro
No call
Only Muse Spark 1.2 has a MMLU Pro result, 88.3%.
Directional only
Web design
Design Arena: websites
No call
Only Muse Spark 1.2 has a Design Arena: websites result, 1313.
Directional only
General
Vals Index
No call
Only MiMo-V2.6-Flash has a Vals Index result, 54.8%.
Directional only
Long documents
Listed context window
MiMo-V2.6-Flash
MiMo-V2.6-Flash takes 1.05M tokens against 1.05M.
Listed by OpenRouter
Everyday cost
1K input + 500 output tokens
MiMo-V2.6-Flash
Muse Spark 1.2 $0.0034, MiMo-V2.6-Flash $0.0003 per turn.
List prices
Cost per solved task
One SWE-bench Verified task, solved
No call
Only Muse Spark 1.2 has the number, $0.64.
Directional only
At a glance
- Coding index
- Muse Spark 1.2 65.1 from 2 benchmarks, MiMo-V2.6-Flash 61.9 from 1 benchmark.
- Widest category
- Coding, 8.6 points apart on average over 13 shared benchmarks.
- Widest single gap
- IOI (Vals AI): Muse Spark 1.2 21.8% against MiMo-V2.6-Flash 47.7%, 25.9 points apart on a 0 to 100 scale.
- Output price
- Muse Spark 1.2 $4.25 against MiMo-V2.6-Flash $0.28 per million output tokens, 15.2x apart.
- Context window
- Muse Spark 1.2 takes 1.05M tokens, MiMo-V2.6-Flash 1.05M.
Benchmark by benchmark
First the score: boards each model leads, per category, where both have a result. Then every board, a category to a fold; bars are each result on a 0 to 100 scale, so compare the two in a row, not one row with another.
| Category | Muse Spark 1.2 | Bars | MiMo-V2.6-Flash | Ties |
|---|---|---|---|---|
| Coding | 4 | 8 | 1 tie | |
| Intelligence | 1 | 0 | ||
| Agentic work | 3 | 3 | ||
| Reasoning | 3 | 2 | ||
| Math | 2 | 1 | ||
| Knowledge | 5 | 0 | ||
| General | 21 | 0 | ||
| All shared boards | 39 | 14 | 1 tie |
CodingLike-for-likeFour of these boards feed the Vibe Coding Index48
| Benchmark | Muse Spark 1.2 | MiMo-V2.6-Flash | Leader |
|---|---|---|---|
| LiveBench coding | 78.2% | Not measured | Only Muse Spark 1.2 measured |
| LMArena WebDev | 1534 | 1634 | MiMo-V2.6-Flash |
| AA Coding Index | 72.2 | Not measured | Only Muse Spark 1.2 measured |
| SWE-bench Verified (Vals AI) | 86.6% | Not measured | Only Muse Spark 1.2 measured |
| Terminal-Bench 4 (Vals AI) | 6.1% | 24.2% | MiMo-V2.6-Flash |
| Vibe Code Bench (Vals AI) | 79.1% | 79.0% | Muse Spark 1.2 |
| Code migration (Vals AI) | 29.9% | 40.9% | MiMo-V2.6-Flash |
| ProgramBench (Vals AI) | 0.5% | 0.5% | Tie |
| IOI (Vals AI) | 21.8% | 47.7% | MiMo-V2.6-Flash |
| Terminal-Bench 2.1 (Vals AI) | 69.7% | 76.4% | MiMo-V2.6-Flash |
| SkillsBench (Vals AI) | 53.0% | Not measured | Only Muse Spark 1.2 measured |
| CyberBench (Vals AI) | 69.5% | 75.4% | MiMo-V2.6-Flash |
| SciCode | 57.4% | 51.3% | Muse Spark 1.2 |
| FrontierSWE | 12.0% | Not measured | Only Muse Spark 1.2 measured |
| WeirdML | 60.3% | Not measured | Only Muse Spark 1.2 measured |
| ALE-Bench | Not measured | 1244.2 | Only MiMo-V2.6-Flash measured |
| LMArena Text: coding | 1505 | 1499 | Muse Spark 1.2 |
| LMArena Text: software and IT | 1505 | 1497 | Muse Spark 1.2 |
| LMArena WebDev: React | 1526 | 1648 | MiMo-V2.6-Flash |
| LMArena WebDev: HTML | 1543 | 1641 | MiMo-V2.6-Flash |
| LMArena WebDev: from an image | Not measured | 1596 | Only MiMo-V2.6-Flash measured |
| Neither model has a result on the other 17 boards here | |||
IntelligenceLike-for-likePublic boards, shown as published, kept out of the index10
| Benchmark | Muse Spark 1.2 | MiMo-V2.6-Flash | Leader |
|---|---|---|---|
| AA Intelligence Index | 39.6 | 37.9 | Muse Spark 1.2 |
| Epoch Capabilities Index | 155.1 | Not measured | Only Muse Spark 1.2 measured |
Agentic workLike-for-likePublic boards, shown as published, kept out of the index33
| Benchmark | Muse Spark 1.2 | MiMo-V2.6-Flash | Leader |
|---|---|---|---|
| AA Agentic Index | 43.2 | Not measured | Only Muse Spark 1.2 measured |
| Design Arena: agents building web apps | 1222 | Not measured | Only Muse Spark 1.2 measured |
| Design Arena: agents building full-stack apps | 1210 | Not measured | Only Muse Spark 1.2 measured |
| Design Arena: agents building mobile apps | 1182 | Not measured | Only Muse Spark 1.2 measured |
| Design Arena: agents building Android apps | 1228 | Not measured | Only Muse Spark 1.2 measured |
| Design Arena: agents building games | 1179 | Not measured | Only Muse Spark 1.2 measured |
| Design Arena: HTML slides | 1135 | Not measured | Only Muse Spark 1.2 measured |
| Design Arena: PowerPoint slides | 1198 | Not measured | Only Muse Spark 1.2 measured |
| LiveBench research | 67.7% | Not measured | Only Muse Spark 1.2 measured |
| LiveBench browser | 36.0% | Not measured | Only Muse Spark 1.2 measured |
| LiveBench long agentic | 21.3% | Not measured | Only Muse Spark 1.2 measured |
| SREBench (Vals AI) | 0.0% | 4.2% | MiMo-V2.6-Flash |
| Finance Agent (Vals AI) | 60.6% | 56.3% | Muse Spark 1.2 |
| Tax Agent Bench (Vals AI) | 32.8% | 28.5% | Muse Spark 1.2 |
| Legal Research Bench (Vals AI) | 43.8% | 38.0% | Muse Spark 1.2 |
| Harvey's Legal Agent Benchmark (Vals AI) | Not measured | 13.3% | Only MiMo-V2.6-Flash measured |
| Excel Modeling Benchmark (Vals AI) | 57.0% | 65.5% | MiMo-V2.6-Flash |
| BioMysteryBench (Vals AI) | 64.8% | 69.3% | MiMo-V2.6-Flash |
| Terminal-Bench-Science (Vals AI) | Not measured | 4.3% | Only MiMo-V2.6-Flash measured |
| Vals Science Index | Not measured | 31.7% | Only MiMo-V2.6-Flash measured |
| APEX-Agents | 45.4% | Not measured | Only Muse Spark 1.2 measured |
| Neither model has a result on the other 18 boards here | |||
ReasoningLike-for-likePublic boards, shown as published, kept out of the index32
| Benchmark | Muse Spark 1.2 | MiMo-V2.6-Flash | Leader |
|---|---|---|---|
| LiveBench reasoning | 90.0% | Not measured | Only Muse Spark 1.2 measured |
| MysteryMechanism (Vals AI) | Not measured | 21.6% | Only MiMo-V2.6-Flash measured |
| MMMU Pro (Vals AI) | 86.1% | Not measured | Only Muse Spark 1.2 measured |
| GPQA Diamond (Artificial Analysis run) | 90.4% | Not measured | Only Muse Spark 1.2 measured |
| Humanity's Last Exam (Artificial Analysis run) | 45.5% | 35.1% | Muse Spark 1.2 |
| SimpleBench | 74.5% | Not measured | Only Muse Spark 1.2 measured |
| Chess puzzles | 27.0% | Not measured | Only Muse Spark 1.2 measured |
| LMArena Text: hard prompts | 1489 | 1475 | Muse Spark 1.2 |
| LMArena Text: expert | 1475 | 1496 | MiMo-V2.6-Flash |
| LMArena Text: hard prompts in English | 1487 | 1493 | MiMo-V2.6-Flash |
| LMArena Vision: diagrams | 1317 | 1276 | Muse Spark 1.2 |
| LMArena Vision: homework | Not measured | 1283 | Only MiMo-V2.6-Flash measured |
| Neither model has a result on the other 9 boards here | |||
MathLike-for-likePublic boards, shown as published, kept out of the index21
| Benchmark | Muse Spark 1.2 | MiMo-V2.6-Flash | Leader |
|---|---|---|---|
| ProofBench | 43.0% | 63.0% | MiMo-V2.6-Flash |
| LMArena Text: math | 1484 | 1476 | Muse Spark 1.2 |
| LMArena Text: mathematical work | 1480 | 1478 | Muse Spark 1.2 |
| Neither model has a result on the other 10 boards here | |||
KnowledgeLike-for-likePublic boards, shown as published, kept out of the index50
| Benchmark | Muse Spark 1.2 | MiMo-V2.6-Flash | Leader |
|---|---|---|---|
| MMLU Pro | 88.3% | Not measured | Only Muse Spark 1.2 measured |
| LegalBench (Vals AI) | 85.3% | Not measured | Only Muse Spark 1.2 measured |
| CorpFin (Vals AI) | 70.9% | Not measured | Only Muse Spark 1.2 measured |
| TaxEval (Vals AI) | 80.4% | Not measured | Only Muse Spark 1.2 measured |
| MortgageTax (Vals AI) | 65.4% | Not measured | Only Muse Spark 1.2 measured |
| MedCode (Vals AI) | 49.4% | 41.1% | Muse Spark 1.2 |
| SimpleQA Verified | 60.3% | Not measured | Only Muse Spark 1.2 measured |
| LMArena Text: science | 1500 | 1462 | Muse Spark 1.2 |
| LMArena Text: medicine and healthcare | 1496 | 1439 | Muse Spark 1.2 |
| LMArena Text: legal and government | 1517 | 1441 | Muse Spark 1.2 |
| LMArena Text: business and finance | 1484 | 1454 | Muse Spark 1.2 |
| Neither model has a result on the other 6 boards here | |||
Web designDirectional onlyPublic boards, shown as published, kept out of the index9 boards, none shared
| Benchmark | Muse Spark 1.2 | MiMo-V2.6-Flash | Leader |
|---|---|---|---|
| Design Arena: websites | 1313 | Not measured | Only Muse Spark 1.2 measured |
| Design Arena: UI components | 1300 | Not measured | Only Muse Spark 1.2 measured |
| Design Arena: game dev | 1302 | Not measured | Only Muse Spark 1.2 measured |
| Design Arena: data viz | 1334 | Not measured | Only Muse Spark 1.2 measured |
| Design Arena: 3D | 1301 | Not measured | Only Muse Spark 1.2 measured |
| Design Arena: all code categories | 1313 | Not measured | Only Muse Spark 1.2 measured |
| Design Arena: SVG | 1285 | Not measured | Only Muse Spark 1.2 measured |
| Design Arena: ASCII art | 1284 | Not measured | Only Muse Spark 1.2 measured |
| LiveBench design | 67.1% | Not measured | Only Muse Spark 1.2 measured |
GeneralLike-for-likePublic boards, shown as published, kept out of the index210
| Benchmark | Muse Spark 1.2 | MiMo-V2.6-Flash | Leader |
|---|---|---|---|
| Vals Index | Not measured | 54.8% | Only MiMo-V2.6-Flash measured |
| LiveBench data analysis | 76.5% | Not measured | Only Muse Spark 1.2 measured |
| Public Benefits Bench (Vals AI) | 68.5% | 67.6% | Muse Spark 1.2 |
| SAGE (Vals AI) | 47.7% | 43.5% | Muse Spark 1.2 |
| MedScribe (Vals AI) | 90.1% | 85.3% | Muse Spark 1.2 |
| Vals Multimodal Index | 69.8% | Not measured | Only Muse Spark 1.2 measured |
| Long context reasoning (AA-LCR) | 79.0% | 74.3% | Muse Spark 1.2 |
| DTBench | 94.7% | Not measured | Only Muse Spark 1.2 measured |
| LMCA | 48.4% | Not measured | Only Muse Spark 1.2 measured |
| LMArena Text | 1482 | 1453 | Muse Spark 1.2 |
| LMArena Text: instruction following | 1462 | 1452 | Muse Spark 1.2 |
| LMArena Text: creative writing | 1436 | 1403 | Muse Spark 1.2 |
| LMArena Vision | 1304 | 1256 | Muse Spark 1.2 |
| LMArena Text: English | 1483 | 1476 | Muse Spark 1.2 |
| LMArena Text: non-English | 1476 | 1431 | Muse Spark 1.2 |
| LMArena Text: Chinese | 1509 | 1509 | Muse Spark 1.2 |
| LMArena Text: German | Not measured | 1458 | Only MiMo-V2.6-Flash measured |
| LMArena Text: Japanese | Not measured | 1359 | Only MiMo-V2.6-Flash measured |
| LMArena Text: Korean | 1462 | 1425 | Muse Spark 1.2 |
| LMArena Text: French | 1495 | 1480 | Muse Spark 1.2 |
| LMArena Text: Spanish | 1484 | 1453 | Muse Spark 1.2 |
| LMArena Text: Russian | 1483 | 1409 | Muse Spark 1.2 |
| LMArena Text: Polish | Not measured | 1455 | Only MiMo-V2.6-Flash measured |
| LMArena Text: multi-turn | 1502 | 1447 | Muse Spark 1.2 |
| LMArena Text: longer queries | 1473 | 1459 | Muse Spark 1.2 |
| LMArena Text: writing and language | 1453 | 1424 | Muse Spark 1.2 |
| LMArena Text: entertainment and media | 1443 | 1415 | Muse Spark 1.2 |
| LMArena Vision: English | 1291 | 1269 | Muse Spark 1.2 |
| LMArena Vision: reading text | 1313 | 1270 | Muse Spark 1.2 |
| LMArena Vision: creative writing | Not measured | 1231 | Only MiMo-V2.6-Flash measured |
| Neither model has a result on the other 16 boards here | |||
Image generationNot comparablePublic boards, shown as published, kept out of the index0 boards, none shared
| Benchmark | Muse Spark 1.2 | MiMo-V2.6-Flash | Leader |
|---|---|---|---|
| Neither model has a result on 5 boards here | |||
What each workload costs
Three fixed token mixes at each model's listed price, so per-token rates become a bill.
Chat turn
1K input + 500 output tokens
MiMo-V2.6-Flash costs less
Repository review
50K input + 3K output tokens
MiMo-V2.6-Flash costs less
Agent loop
200K input + 10K output tokens
MiMo-V2.6-Flash costs less
Listed OpenRouter rates, without cache or batch discounts. A workload that does not fit a model's context window would need splitting.
Specification differences
The leading value in a row is marked; a row with a missing value names no leader. Our two rows are marked in red.
| Specification | Meta Muse Spark 1.2 | Xiaomi MiMo-V2.6-Flash |
|---|---|---|
| Maker | Meta | Xiaomi |
| Weights | No public weights listed | Open weights |
| Released | August 5, 2026 | September 21, 2026 |
| Context window | 1.05M | 1.05M |
| Input $/Mtok | $1.25 | $0.14 |
| Output $/Mtok | $4.25 | $0.28 |
| Coding index | 65.1 | 61.9 |
| Independent measurements behind it | 2 | 1 |
| Cost per solved task | $0.64 | Not computable |
| Source | OpenRouter listing | OpenRouter listing |
Questions
Is Muse Spark 1.2 better than MiMo-V2.6-Flash for coding?
Pick Muse Spark 1.2 for coding: it scores 65.1 on the Vibe Coding Index against 61.9 for MiMo-V2.6-Flash. Pick MiMo-V2.6-Flash when output tokens cost 15.2x less, or when the context window is larger, 1.05M against 1.05M tokens.
Which is cheaper, Muse Spark 1.2 or MiMo-V2.6-Flash?
Muse Spark 1.2 costs $1.25 per million input tokens and $4.25 per million output tokens; MiMo-V2.6-Flash costs $0.14 and $0.28. Cost per solved task is known for Muse Spark 1.2 only.
Which has the bigger context window, Muse Spark 1.2 or MiMo-V2.6-Flash?
MiMo-V2.6-Flash, with 1.05M tokens against 1.05M.
How many benchmarks is the Muse Spark 1.2 vs MiMo-V2.6-Flash comparison based on?
54 benchmarks have a result for both models as of October 21, 2026. Muse Spark 1.2's coding index rests on 2 independent benchmarks and MiMo-V2.6-Flash's on 1. Where only one model has a result, the page says so instead of naming a winner.