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Muse Spark 1.2 vs MiMo-V2.5-Pro

Muse Spark 1.2 leads MiMo-V2.5-Pro on coding, 55.7 to 31.6 on the Vibe Coding Index, and MiMo-V2.5-Pro costs 4.6x less per output token ($0.9152 vs $4.25 per million). Updated October 22, 2026; 61 benchmarks have a result for both.

Replace Muse Spark 1.2 Replace MiMo-V2.5-Pro
Muse Spark 1.2Meta
Coding
55.7
Overall
60.4
Output $/M
$4.25
54
MiMo-V2.5-ProXiaomi
Coding
31.6
Overall
39.3
Output $/M
$0.9152
7
vs boards won of 61 shared

Muse Spark 1.2 or MiMo-V2.5-Pro: which to pick

Pick Muse Spark 1.2 for coding: it scores 55.7 on the Vibe Coding Index against 31.6 for MiMo-V2.5-Pro.

Pick MiMo-V2.5-Pro for output tokens 4.6x cheaper ($0.9152 vs $4.25 per million) and a lower cost per solved task ($0.03 against $0.64).

Model AMuse Spark 1.2Meta55.7/1005 independent benchmarks$0.64 per solved taskModel BMiMo-V2.5-ProXiaomi31.6/1004 independent benchmarks$0.03 per solved task
Shared results
61
Muse Spark 1.2 only
36
MiMo-V2.5-Pro only
9
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.

At a glance

Coding index
Muse Spark 1.2 55.7 from 5 benchmarks, MiMo-V2.5-Pro 31.6 from 4 benchmarks.
Widest category
Agentic work, 18.4 points apart on average over 5 shared benchmarks.
Widest single gap
Vibe Code Bench (Vals AI): Muse Spark 1.2 79.1% against MiMo-V2.5-Pro 34.1%, 45.0 points apart on a 0 to 100 scale.
Output price
Muse Spark 1.2 $4.25 against MiMo-V2.5-Pro $0.9152 per million output tokens, 4.6x apart.
Context window
Muse Spark 1.2 takes 1.05M tokens, MiMo-V2.5-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.

Boards won, where both have a result
CategoryMuse Spark 1.2BarsMiMo-V2.5-ProTies
Coding120
Intelligence10
Agentic work50
Reasoning32
Math21
Knowledge90
Web design80
General144
All shared boards547
CodingLike-for-likeSix of these boards feed the Vibe Coding Index120
Coding benchmarks for Muse Spark 1.2 and MiMo-V2.5-Pro
BenchmarkMuse Spark 1.2MiMo-V2.5-ProLeader
LiveBench coding78.2%Not measuredOnly Muse Spark 1.2 measured
LMArena WebDev15341480Muse Spark 1.2
AA Coding Index72.260.2Muse Spark 1.2
LiveCodeBench (Vals AI)Not measured81.3%Only MiMo-V2.5-Pro measured
SWE-bench Verified (Vals AI)86.6%74.0%Muse Spark 1.2
Terminal-Bench 4 (Vals AI)6.1%0.5%Muse Spark 1.2
Vibe Code Bench (Vals AI)79.1%34.1%Muse Spark 1.2
Code migration (Vals AI)29.9%21.6%Muse Spark 1.2
ProgramBench (Vals AI)0.5%Not measuredOnly Muse Spark 1.2 measured
IOI (Vals AI)21.8%Not measuredOnly Muse Spark 1.2 measured
Terminal-Bench 2.1 (Vals AI)69.7%57.3%Muse Spark 1.2
SkillsBench (Vals AI)53.0%Not measuredOnly Muse Spark 1.2 measured
CyberBench (Vals AI)69.5%Not measuredOnly Muse Spark 1.2 measured
SciCode57.4%50.6%Muse Spark 1.2
Terminal-Bench Hard (Artificial Analysis run)Not measured43.2%Only MiMo-V2.5-Pro measured
FrontierSWE12.0%Not measuredOnly Muse Spark 1.2 measured
WeirdML60.3%Not measuredOnly Muse Spark 1.2 measured
ALE-BenchNot measured899.8Only MiMo-V2.5-Pro measured
LMArena Text: coding15051501Muse Spark 1.2
LMArena Text: software and IT15051495Muse Spark 1.2
LMArena WebDev: React15261469Muse Spark 1.2
LMArena WebDev: HTML15431473Muse Spark 1.2
Neither model has a result on the other 17 boards here
IntelligenceLike-for-likePublic boards, shown as published, kept out of the index10
Intelligence benchmarks for Muse Spark 1.2 and MiMo-V2.5-Pro
BenchmarkMuse Spark 1.2MiMo-V2.5-ProLeader
AA Intelligence Index39.626.0Muse Spark 1.2
Epoch Capabilities Index155.1Not measuredOnly Muse Spark 1.2 measured
Agentic workLike-for-likePublic boards, shown as published, kept out of the index50
Agentic work benchmarks for Muse Spark 1.2 and MiMo-V2.5-Pro
BenchmarkMuse Spark 1.2MiMo-V2.5-ProLeader
AA Agentic Index43.221.3Muse Spark 1.2
Design Arena: agents building web apps1221Not measuredOnly Muse Spark 1.2 measured
Design Arena: agents building full-stack apps1210Not measuredOnly Muse Spark 1.2 measured
Design Arena: agents building mobile apps1181Not measuredOnly Muse Spark 1.2 measured
Design Arena: agents building Android apps1222Not measuredOnly Muse Spark 1.2 measured
Design Arena: agents building games1179Not measuredOnly Muse Spark 1.2 measured
Design Arena: HTML slides1085Not measuredOnly Muse Spark 1.2 measured
Design Arena: PowerPoint slides1172Not measuredOnly Muse Spark 1.2 measured
LiveBench research67.7%Not measuredOnly Muse Spark 1.2 measured
LiveBench browser36.0%Not measuredOnly Muse Spark 1.2 measured
LiveBench long agentic21.3%Not measuredOnly Muse Spark 1.2 measured
SREBench (Vals AI)0.0%Not measuredOnly Muse Spark 1.2 measured
Finance Agent (Vals AI)60.6%41.5%Muse Spark 1.2
Tax Agent Bench (Vals AI)32.8%11.5%Muse Spark 1.2
Legal Research Bench (Vals AI)43.8%15.9%Muse Spark 1.2
Excel Modeling Benchmark (Vals AI)57.0%55.2%Muse Spark 1.2
BioMysteryBench (Vals AI)64.8%Not measuredOnly Muse Spark 1.2 measured
τ²-Bench TelecomNot measured94.2%Only MiMo-V2.5-Pro measured
APEX-Agents45.4%Not measuredOnly Muse Spark 1.2 measured
Neither model has a result on the other 22 boards here
ReasoningLike-for-likePublic boards, shown as published, kept out of the index32
Reasoning benchmarks for Muse Spark 1.2 and MiMo-V2.5-Pro
BenchmarkMuse Spark 1.2MiMo-V2.5-ProLeader
GPQA DiamondNot measured82.6%Only MiMo-V2.5-Pro measured
LiveBench reasoning90.0%Not measuredOnly Muse Spark 1.2 measured
MMMU Pro (Vals AI)86.1%Not measuredOnly Muse Spark 1.2 measured
GPQA Diamond (Artificial Analysis run)90.4%86.6%Muse Spark 1.2
Humanity's Last Exam (Artificial Analysis run)45.5%35.7%Muse Spark 1.2
SimpleBench74.5%Not measuredOnly Muse Spark 1.2 measured
Chess puzzles27.0%Not measuredOnly Muse Spark 1.2 measured
LMArena Text: hard prompts14891486Muse Spark 1.2
LMArena Text: expert14751501MiMo-V2.5-Pro
LMArena Text: hard prompts in English14871494MiMo-V2.5-Pro
LMArena Vision: diagrams1317Not measuredOnly Muse Spark 1.2 measured
Neither model has a result on the other 11 boards here
MathLike-for-likePublic boards, shown as published, kept out of the index21
Math benchmarks for Muse Spark 1.2 and MiMo-V2.5-Pro
BenchmarkMuse Spark 1.2MiMo-V2.5-ProLeader
ProofBench43.0%22.0%Muse Spark 1.2
LMArena Text: math14841481Muse Spark 1.2
LMArena Text: mathematical work14801491MiMo-V2.5-Pro
Neither model has a result on the other 10 boards here
KnowledgeLike-for-likePublic boards, shown as published, kept out of the index90
Knowledge benchmarks for Muse Spark 1.2 and MiMo-V2.5-Pro
BenchmarkMuse Spark 1.2MiMo-V2.5-ProLeader
MMLU Pro88.3%84.6%Muse Spark 1.2
LegalBench (Vals AI)85.3%77.1%Muse Spark 1.2
CorpFin (Vals AI)70.9%61.4%Muse Spark 1.2
TaxEval (Vals AI)80.4%73.8%Muse Spark 1.2
MortgageTax (Vals AI)65.4%Not measuredOnly Muse Spark 1.2 measured
MedCode (Vals AI)49.4%32.5%Muse Spark 1.2
SimpleQA Verified60.3%Not measuredOnly Muse Spark 1.2 measured
LMArena Text: science15001482Muse Spark 1.2
LMArena Text: medicine and healthcare14961473Muse Spark 1.2
LMArena Text: legal and government15171474Muse Spark 1.2
LMArena Text: business and finance14841466Muse 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 index80
Web design benchmarks for Muse Spark 1.2 and MiMo-V2.5-Pro
BenchmarkMuse Spark 1.2MiMo-V2.5-ProLeader
Design Arena: websites13121266Muse Spark 1.2
Design Arena: UI components12981246Muse Spark 1.2
Design Arena: game dev13011261Muse Spark 1.2
Design Arena: data viz13341257Muse Spark 1.2
Design Arena: 3D13011243Muse Spark 1.2
Design Arena: all code categories13121265Muse Spark 1.2
Design Arena: SVG12841181Muse Spark 1.2
Design Arena: ASCII art12841156Muse Spark 1.2
LiveBench design67.1%Not measuredOnly Muse Spark 1.2 measured
GeneralLike-for-likePublic boards, shown as published, kept out of the index144
General benchmarks for Muse Spark 1.2 and MiMo-V2.5-Pro
BenchmarkMuse Spark 1.2MiMo-V2.5-ProLeader
LiveBench data analysis76.5%Not measuredOnly Muse Spark 1.2 measured
Public Benefits Bench (Vals AI)68.5%Not measuredOnly Muse Spark 1.2 measured
SAGE (Vals AI)47.7%Not measuredOnly Muse Spark 1.2 measured
MedScribe (Vals AI)90.1%83.7%Muse Spark 1.2
Vals Multimodal Index69.8%Not measuredOnly Muse Spark 1.2 measured
IFBenchNot measured79.9%Only MiMo-V2.5-Pro measured
Long context reasoning (AA-LCR)79.0%79.7%MiMo-V2.5-Pro
DTBench94.7%84.5%Muse Spark 1.2
LMCA48.4%29.5%Muse Spark 1.2
LMArena Text14821464Muse Spark 1.2
LMArena Text: instruction following14621475MiMo-V2.5-Pro
LMArena Text: creative writing14361438MiMo-V2.5-Pro
LMArena Vision1304Not measuredOnly Muse Spark 1.2 measured
LMArena Text: English14831477Muse Spark 1.2
LMArena Text: non-English14761448Muse Spark 1.2
LMArena Text: Chinese15091507Muse Spark 1.2
LMArena Text: GermanNot measured1459Only MiMo-V2.5-Pro measured
LMArena Text: JapaneseNot measured1410Only MiMo-V2.5-Pro measured
LMArena Text: Korean14621435Muse Spark 1.2
LMArena Text: French14951487Muse Spark 1.2
LMArena Text: Spanish14841469Muse Spark 1.2
LMArena Text: Russian14831449Muse Spark 1.2
LMArena Text: PolishNot measured1464Only MiMo-V2.5-Pro measured
LMArena Text: multi-turn15021476Muse Spark 1.2
LMArena Text: longer queries14731481MiMo-V2.5-Pro
LMArena Text: writing and language14531451Muse Spark 1.2
LMArena Text: entertainment and media14431438Muse Spark 1.2
LMArena Vision: English1291Not measuredOnly Muse Spark 1.2 measured
LMArena Vision: reading text1313Not measuredOnly Muse Spark 1.2 measured
Neither model has a result on the other 17 boards here
Image generationNot comparablePublic boards, shown as published, kept out of the index0 boards, none shared
Image generation benchmarks for Muse Spark 1.2 and MiMo-V2.5-Pro
BenchmarkMuse Spark 1.2MiMo-V2.5-ProLeader
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

Muse Spark 1.2$0.0034Fits in one request
MiMo-V2.5-Pro$0.0009Fits in one request

MiMo-V2.5-Pro costs less

Repository review

50K input + 3K output tokens

Muse Spark 1.2$0.075Fits in one request
MiMo-V2.5-Pro$0.026Fits in one request

MiMo-V2.5-Pro costs less

Agent loop

200K input + 10K output tokens

Muse Spark 1.2$0.292Fits in one request
MiMo-V2.5-Pro$0.101Fits in one request

MiMo-V2.5-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.

Specifications of Muse Spark 1.2 and MiMo-V2.5-Pro
SpecificationMeta Muse Spark 1.2Xiaomi MiMo-V2.5-Pro
MakerMetaXiaomi
WeightsNo public weights listedOpen weights
ReleasedAugust 5, 2026April 22, 2026
Context window1.05M1.05M
Input $/Mtok$1.25$0.4575
Output $/Mtok$4.25$0.9152
Coding index55.731.6
Independent measurements behind it54
Cost per solved task$0.64$0.03
SourceOpenRouter listingOpenRouter listing

Questions

Is Muse Spark 1.2 better than MiMo-V2.5-Pro for coding?

Pick Muse Spark 1.2 for coding: it scores 55.7 on the Vibe Coding Index against 31.6 for MiMo-V2.5-Pro. Pick MiMo-V2.5-Pro for output tokens 4.6x cheaper ($0.9152 vs $4.25 per million) and a lower cost per solved task ($0.03 against $0.64).

Which is cheaper, Muse Spark 1.2 or MiMo-V2.5-Pro?

Muse Spark 1.2 costs $1.25 per million input tokens and $4.25 per million output tokens; MiMo-V2.5-Pro costs $0.4575 and $0.9152. Per solved SWE-bench Verified task, Muse Spark 1.2 costs $0.64 and MiMo-V2.5-Pro $0.03.

Which has the bigger context window, Muse Spark 1.2 or MiMo-V2.5-Pro?

MiMo-V2.5-Pro, with 1.05M tokens against 1.05M.

How many benchmarks is the Muse Spark 1.2 vs MiMo-V2.5-Pro comparison based on?

61 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-V2.5-Pro's on 4. Where only one model has a result, the page says so instead of naming a winner.

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<iframe src="https://llmbenchmark.ai/embed/compare/meta-muse-spark-1-2-vs-xiaomi-mimo-v2-5-pro" title="Muse Spark 1.2 vs MiMo-V2.5-Pro, LLMBenchmark.ai" width="100%" height="360" style="border:0;max-width:100%" loading="lazy"></iframe>
<p style="font:13px/1.4 sans-serif;margin:6px 0 0">Source: <a href="https://llmbenchmark.ai/compare/meta-muse-spark-1-2-vs-xiaomi-mimo-v2-5-pro">LLMBenchmark.ai, Muse Spark 1.2 vs MiMo-V2.5-Pro</a></p>