Muse Spark 1.2 vs MiMo-V2.6-Pro
MiMo-V2.6-Pro leads Muse Spark 1.2 on coding, 65.4 to 55.7 on the Vibe Coding Index, and MiMo-V2.6-Pro costs 4.9x less per output token ($0.87 vs $4.25 per million). Updated October 22, 2026; 65 benchmarks have a result for both.
Muse Spark 1.2 or MiMo-V2.6-Pro: which to pick
Pick MiMo-V2.6-Pro for coding: it scores 65.4 on the Vibe Coding Index against 55.7 for Muse Spark 1.2, though on 4 benchmarks against 5.
Pick Muse Spark 1.2 for work measured by Terminal-Bench 2.1 (Vals AI) or Finance Agent (Vals AI), where it leads.
- Shared results
- 65
- Muse Spark 1.2 only
- 32
- MiMo-V2.6-Pro only
- 8
- Like-for-like categories
- 8 of 9
Only benchmarks that tested both models count toward a pick; a result only one model has is shown but not compared.
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, six public coding benchmarks
MiMo-V2.6-Pro
MiMo-V2.6-Pro scores 65.4 against 55.7.
5 and 4 benchmarks behind the scores
Intelligence
AA Intelligence Index
MiMo-V2.6-Pro
MiMo-V2.6-Pro leads, 46.3 against 39.6.
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
Muse Spark 1.2
Muse Spark 1.2 leads, 1312 against 1308.
Same board, both measured
General
Vals Index
No call
Only MiMo-V2.6-Pro has a Vals Index result, 57.8%.
Directional only
Long documents
Listed context window
MiMo-V2.6-Pro
MiMo-V2.6-Pro takes 1.05M tokens against 1.05M.
Listed by OpenRouter
Everyday cost
1K input + 500 output tokens
MiMo-V2.6-Pro
Muse Spark 1.2 $0.0034, MiMo-V2.6-Pro $0.0009 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 55.7 from 5 benchmarks, MiMo-V2.6-Pro 65.4 from 4 benchmarks.
- Widest category
- Agentic work, 12.1 points apart on average over 10 shared benchmarks.
- Widest single gap
- LiveBench browser: Muse Spark 1.2 36.0% against MiMo-V2.6-Pro 88.0%, 52.0 points apart on a 0 to 100 scale.
- Output price
- Muse Spark 1.2 $4.25 against MiMo-V2.6-Pro $0.87 per million output tokens, 4.9x apart.
- Context window
- Muse Spark 1.2 takes 1.05M tokens, MiMo-V2.6-Pro 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-Pro | Ties |
|---|---|---|---|---|
| Coding | 1 | 12 | 1 tie | |
| Intelligence | 0 | 1 | ||
| Agentic work | 2 | 8 | ||
| Reasoning | 2 | 4 | ||
| Math | 0 | 3 | ||
| Knowledge | 3 | 2 | ||
| Web design | 1 | 6 | ||
| General | 9 | 10 | ||
| All shared boards | 18 | 46 | 1 tie |
CodingLike-for-likeSix of these boards feed the Vibe Coding Index112
| Benchmark | Muse Spark 1.2 | MiMo-V2.6-Pro | Leader |
|---|---|---|---|
| LiveBench coding | 78.2% | 81.5% | MiMo-V2.6-Pro |
| LMArena WebDev | 1534 | 1625 | MiMo-V2.6-Pro |
| 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% | 31.3% | MiMo-V2.6-Pro |
| Vibe Code Bench (Vals AI) | 79.1% | 85.2% | MiMo-V2.6-Pro |
| Code migration (Vals AI) | 29.9% | 43.0% | MiMo-V2.6-Pro |
| ProgramBench (Vals AI) | 0.5% | 0.5% | Tie |
| IOI (Vals AI) | 21.8% | 39.3% | MiMo-V2.6-Pro |
| Terminal-Bench 2.1 (Vals AI) | 69.7% | 67.8% | Muse Spark 1.2 |
| SWE-bench Multimodal (Vals AI) | Not measured | 41.3% | Only MiMo-V2.6-Pro measured |
| SkillsBench (Vals AI) | 53.0% | Not measured | Only Muse Spark 1.2 measured |
| CyberBench (Vals AI) | 69.5% | 72.9% | MiMo-V2.6-Pro |
| SciCode | 57.4% | 60.9% | MiMo-V2.6-Pro |
| 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 | 1158.1 | Only MiMo-V2.6-Pro measured |
| LMArena Text: coding | 1505 | 1533 | MiMo-V2.6-Pro |
| LMArena Text: software and IT | 1505 | 1528 | MiMo-V2.6-Pro |
| LMArena WebDev: React | 1526 | 1639 | MiMo-V2.6-Pro |
| LMArena WebDev: HTML | 1543 | 1616 | MiMo-V2.6-Pro |
| LMArena WebDev: from an image | Not measured | 1598 | Only MiMo-V2.6-Pro measured |
| Neither model has a result on the other 17 boards here | |||
IntelligenceLike-for-likePublic boards, shown as published, kept out of the index01
| Benchmark | Muse Spark 1.2 | MiMo-V2.6-Pro | Leader |
|---|---|---|---|
| AA Intelligence Index | 39.6 | 46.3 | MiMo-V2.6-Pro |
| 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 index28
| Benchmark | Muse Spark 1.2 | MiMo-V2.6-Pro | Leader |
|---|---|---|---|
| AA Agentic Index | 43.2 | Not measured | Only Muse Spark 1.2 measured |
| Design Arena: agents building web apps | 1221 | 1290 | MiMo-V2.6-Pro |
| Design Arena: agents building full-stack apps | 1210 | Not measured | Only Muse Spark 1.2 measured |
| Design Arena: agents building mobile apps | 1181 | Not measured | Only Muse Spark 1.2 measured |
| Design Arena: agents building Android apps | 1222 | 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 | 1085 | Not measured | Only Muse Spark 1.2 measured |
| Design Arena: PowerPoint slides | 1172 | Not measured | Only Muse Spark 1.2 measured |
| LiveBench research | 67.7% | 76.7% | MiMo-V2.6-Pro |
| LiveBench browser | 36.0% | 88.0% | MiMo-V2.6-Pro |
| LiveBench long agentic | 21.3% | 47.5% | MiMo-V2.6-Pro |
| SREBench (Vals AI) | 0.0% | 3.0% | MiMo-V2.6-Pro |
| Finance Agent (Vals AI) | 60.6% | 57.3% | Muse Spark 1.2 |
| Tax Agent Bench (Vals AI) | 32.8% | 32.4% | Muse Spark 1.2 |
| Legal Research Bench (Vals AI) | 43.8% | 47.1% | MiMo-V2.6-Pro |
| Harvey's Legal Agent Benchmark (Vals AI) | Not measured | 13.8% | Only MiMo-V2.6-Pro measured |
| Excel Modeling Benchmark (Vals AI) | 57.0% | 62.9% | MiMo-V2.6-Pro |
| BioMysteryBench (Vals AI) | 64.8% | Not measured | Only Muse Spark 1.2 measured |
| Terminal-Bench-Science (Vals AI) | Not measured | 2.9% | Only MiMo-V2.6-Pro measured |
| APEX-Agents | 45.4% | 54.4% | MiMo-V2.6-Pro |
| Neither model has a result on the other 21 boards here | |||
ReasoningLike-for-likePublic boards, shown as published, kept out of the index24
| Benchmark | Muse Spark 1.2 | MiMo-V2.6-Pro | Leader |
|---|---|---|---|
| LiveBench reasoning | 90.0% | 79.6% | Muse Spark 1.2 |
| MysteryMechanism (Vals AI) | Not measured | 15.3% | Only MiMo-V2.6-Pro 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% | 49.4% | MiMo-V2.6-Pro |
| 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 | 1511 | MiMo-V2.6-Pro |
| LMArena Text: expert | 1475 | 1541 | MiMo-V2.6-Pro |
| LMArena Text: hard prompts in English | 1487 | 1520 | MiMo-V2.6-Pro |
| LMArena Vision: diagrams | 1317 | 1281 | Muse Spark 1.2 |
| LMArena Vision: homework | Not measured | 1264 | Only MiMo-V2.6-Pro measured |
| Neither model has a result on the other 10 boards here | |||
MathLike-for-likePublic boards, shown as published, kept out of the index03
| Benchmark | Muse Spark 1.2 | MiMo-V2.6-Pro | Leader |
|---|---|---|---|
| ProofBench | 43.0% | 70.0% | MiMo-V2.6-Pro |
| LMArena Text: math | 1484 | 1500 | MiMo-V2.6-Pro |
| LMArena Text: mathematical work | 1480 | 1511 | MiMo-V2.6-Pro |
| Neither model has a result on the other 10 boards here | |||
KnowledgeLike-for-likePublic boards, shown as published, kept out of the index32
| Benchmark | Muse Spark 1.2 | MiMo-V2.6-Pro | 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% | 45.0% | Muse Spark 1.2 |
| SimpleQA Verified | 60.3% | Not measured | Only Muse Spark 1.2 measured |
| LMArena Text: science | 1500 | 1506 | MiMo-V2.6-Pro |
| LMArena Text: medicine and healthcare | 1496 | 1497 | MiMo-V2.6-Pro |
| LMArena Text: legal and government | 1517 | 1485 | Muse Spark 1.2 |
| LMArena Text: business and finance | 1484 | 1468 | Muse Spark 1.2 |
| Neither model has a result on the other 7 boards here | |||
Web designLike-for-likePublic boards, shown as published, kept out of the index16
| Benchmark | Muse Spark 1.2 | MiMo-V2.6-Pro | Leader |
|---|---|---|---|
| Design Arena: websites | 1312 | 1308 | Muse Spark 1.2 |
| Design Arena: UI components | 1298 | 1340 | MiMo-V2.6-Pro |
| Design Arena: game dev | 1301 | 1314 | MiMo-V2.6-Pro |
| Design Arena: data viz | 1334 | 1336 | MiMo-V2.6-Pro |
| Design Arena: 3D | 1301 | 1330 | MiMo-V2.6-Pro |
| Design Arena: all code categories | 1312 | 1317 | MiMo-V2.6-Pro |
| Design Arena: SVG | 1284 | 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% | 78.5% | MiMo-V2.6-Pro |
GeneralLike-for-likePublic boards, shown as published, kept out of the index910
| Benchmark | Muse Spark 1.2 | MiMo-V2.6-Pro | Leader |
|---|---|---|---|
| Vals Index | Not measured | 57.8% | Only MiMo-V2.6-Pro measured |
| LiveBench data analysis | 76.5% | 72.3% | Muse Spark 1.2 |
| Public Benefits Bench (Vals AI) | 68.5% | 68.9% | MiMo-V2.6-Pro |
| SAGE (Vals AI) | 47.7% | 45.0% | Muse Spark 1.2 |
| MedScribe (Vals AI) | 90.1% | 88.3% | Muse Spark 1.2 |
| Vals Multimodal Index | 69.8% | Not measured | Only Muse Spark 1.2 measured |
| Long context reasoning (AA-LCR) | 79.0% | 86.3% | MiMo-V2.6-Pro |
| 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 | 1491 | MiMo-V2.6-Pro |
| LMArena Text: instruction following | 1462 | 1491 | MiMo-V2.6-Pro |
| LMArena Text: creative writing | 1436 | 1466 | MiMo-V2.6-Pro |
| LMArena Vision | 1304 | 1263 | Muse Spark 1.2 |
| LMArena Text: English | 1483 | 1504 | MiMo-V2.6-Pro |
| LMArena Text: non-English | 1476 | 1474 | Muse Spark 1.2 |
| LMArena Text: Chinese | 1509 | 1529 | MiMo-V2.6-Pro |
| LMArena Text: Korean | 1462 | Not measured | Only Muse Spark 1.2 measured |
| LMArena Text: French | 1495 | Not measured | Only Muse Spark 1.2 measured |
| LMArena Text: Spanish | 1484 | Not measured | Only Muse Spark 1.2 measured |
| LMArena Text: Russian | 1483 | 1479 | Muse Spark 1.2 |
| LMArena Text: multi-turn | 1502 | 1466 | Muse Spark 1.2 |
| LMArena Text: longer queries | 1473 | 1501 | MiMo-V2.6-Pro |
| LMArena Text: writing and language | 1453 | 1470 | MiMo-V2.6-Pro |
| LMArena Text: entertainment and media | 1443 | 1465 | MiMo-V2.6-Pro |
| LMArena Vision: English | 1291 | 1268 | Muse Spark 1.2 |
| LMArena Vision: reading text | 1313 | 1270 | Muse Spark 1.2 |
| Neither model has a result on the other 20 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-Pro | 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-Pro costs less
Repository review
50K input + 3K output tokens
MiMo-V2.6-Pro costs less
Agent loop
200K input + 10K output tokens
MiMo-V2.6-Pro 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-Pro |
|---|---|---|
| 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 | $0.435 |
| Output $/Mtok | $4.25 | $0.87 |
| Coding index | 55.7 | 65.4 |
| Independent measurements behind it | 5 | 4 |
| Cost per solved task | $0.64 | Not computable |
| Source | OpenRouter listing | OpenRouter listing |
Questions
Is Muse Spark 1.2 better than MiMo-V2.6-Pro for coding?
Pick MiMo-V2.6-Pro for coding: it scores 65.4 on the Vibe Coding Index against 55.7 for Muse Spark 1.2, though on 4 benchmarks against 5. Pick Muse Spark 1.2 for work measured by Terminal-Bench 2.1 (Vals AI) or Finance Agent (Vals AI), where it leads.
Which is cheaper, Muse Spark 1.2 or MiMo-V2.6-Pro?
Muse Spark 1.2 costs $1.25 per million input tokens and $4.25 per million output tokens; MiMo-V2.6-Pro costs $0.435 and $0.87. 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-Pro?
MiMo-V2.6-Pro, with 1.05M tokens against 1.05M.
How many benchmarks is the Muse Spark 1.2 vs MiMo-V2.6-Pro comparison based on?
65 benchmarks have a result for both models as of October 22, 2026. Muse Spark 1.2's coding index rests on 5 independent benchmarks and MiMo-V2.6-Pro's on 4. Where only one model has a result, the page says so instead of naming a winner.