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Muse Spark 1.3 vs MiMo-V2.5

Muse Spark 1.3 leads MiMo-V2.5 on coding, 57.4 to 50.0 on the Vibe Coding Index, and MiMo-V2.5 costs 12.6x less per output token ($0.336 vs $4.25 per million). Updated October 22, 2026; 63 benchmarks have a result for both.

Replace Muse Spark 1.3 Replace MiMo-V2.5
Muse Spark 1.3Meta
Coding
57.4
Overall
68.6
Output $/M
$4.25
63
MiMo-V2.5Xiaomi
Coding
50.0
Overall
50.7
Output $/M
$0.336
0
vs boards won of 63 shared

Muse Spark 1.3 or MiMo-V2.5: which to pick

Pick Muse Spark 1.3 for coding: it scores 57.4 on the Vibe Coding Index against 50.0 for MiMo-V2.5.

Pick MiMo-V2.5 for output tokens 12.6x cheaper ($0.336 vs $4.25 per million) and a larger context window (1.05M against 1.05M tokens).

Model AMuse Spark 1.3Meta57.4/1004 independent benchmarksNo cost per solved taskModel BMiMo-V2.5Xiaomi50.0/1003 independent benchmarks$0.01 per solved task
Shared results
63
Muse Spark 1.3 only
29
MiMo-V2.5 only
17
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 1.3 57.4 from 4 benchmarks, MiMo-V2.5 50.0 from 3 benchmarks.
Widest category
Intelligence, 26.3 points apart on average over 1 shared benchmark.
Widest single gap
ProofBench: Muse Spark 1.3 58.0% against MiMo-V2.5 16.0%, 42.0 points apart on a 0 to 100 scale.
Output price
Muse Spark 1.3 $4.25 against MiMo-V2.5 $0.336 per million output tokens, 12.6x apart.
Context window
Muse Spark 1.3 takes 1.05M tokens, MiMo-V2.5 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 1.3BarsMiMo-V2.5Ties
Coding110
Intelligence10
Agentic work50
Reasoning70
Math30
Knowledge40
Web design80
General240
All shared boards630
CodingLike-for-likeSix of these boards feed the Vibe Coding Index110
Coding benchmarks for Muse Spark 1.3 and MiMo-V2.5
BenchmarkMuse Spark 1.3MiMo-V2.5Leader
LiveBench coding90.2%Not measuredOnly Muse Spark 1.3 measured
LMArena WebDev16591438Muse Spark 1.3
AA Coding Index75.856.8Muse Spark 1.3
LiveCodeBench (Vals AI)Not measured81.5%Only MiMo-V2.5 measured
SWE-bench Verified (Vals AI)Not measured71.0%Only MiMo-V2.5 measured
Terminal-Bench 4 (Vals AI)10.6%Not measuredOnly Muse Spark 1.3 measured
Vibe Code Bench (Vals AI)82.9%42.2%Muse Spark 1.3
Code migration (Vals AI)27.6%14.2%Muse Spark 1.3
ProgramBench (Vals AI)0.5%Not measuredOnly Muse Spark 1.3 measured
IOI (Vals AI)43.9%Not measuredOnly Muse Spark 1.3 measured
Terminal-Bench 2.1 (Vals AI)72.3%60.7%Muse Spark 1.3
CyberBench (Vals AI)69.4%Not measuredOnly Muse Spark 1.3 measured
SciCode59.7%43.9%Muse Spark 1.3
Terminal-Bench Hard (Artificial Analysis run)Not measured41.7%Only MiMo-V2.5 measured
FrontierSWE25.8%Not measuredOnly Muse Spark 1.3 measured
ALE-Bench1688.3514.0Muse Spark 1.3
LMArena Text: coding15101469Muse Spark 1.3
LMArena Text: software and IT15111463Muse Spark 1.3
LMArena WebDev: React16721425Muse Spark 1.3
LMArena WebDev: HTML16531429Muse Spark 1.3
LMArena WebDev: from an image1640Not measuredOnly Muse Spark 1.3 measured
Neither model has a result on the other 18 boards here
IntelligenceLike-for-likePublic boards, shown as published, kept out of the index10
Intelligence benchmarks for Muse Spark 1.3 and MiMo-V2.5
BenchmarkMuse Spark 1.3MiMo-V2.5Leader
AA Intelligence Index48.121.8Muse Spark 1.3
Epoch Capabilities Index157.2Not measuredOnly Muse Spark 1.3 measured
Agentic workLike-for-likePublic boards, shown as published, kept out of the index50
Agentic work benchmarks for Muse Spark 1.3 and MiMo-V2.5
BenchmarkMuse Spark 1.3MiMo-V2.5Leader
AA Agentic Index55.515.8Muse Spark 1.3
Design Arena: agents building web apps1297Not measuredOnly Muse Spark 1.3 measured
Design Arena: agents building full-stack apps1295Not measuredOnly Muse Spark 1.3 measured
Design Arena: agents building mobile apps1218Not measuredOnly Muse Spark 1.3 measured
Design Arena: agents building Godot games1241Not measuredOnly Muse Spark 1.3 measured
Design Arena: PowerPoint slides1219Not measuredOnly Muse Spark 1.3 measured
Design Arena: spreadsheets1062Not measuredOnly Muse Spark 1.3 measured
LiveBench research68.6%Not measuredOnly Muse Spark 1.3 measured
LiveBench browser80.0%Not measuredOnly Muse Spark 1.3 measured
LiveBench long agentic40.4%Not measuredOnly Muse Spark 1.3 measured
Finance Agent (Vals AI)58.9%36.7%Muse Spark 1.3
Tax Agent Bench (Vals AI)36.0%7.8%Muse Spark 1.3
Legal Research Bench (Vals AI)40.9%9.1%Muse Spark 1.3
Excel Modeling Benchmark (Vals AI)62.7%55.1%Muse Spark 1.3
Terminal-Bench-Science (Vals AI)4.3%Not measuredOnly Muse Spark 1.3 measured
τ²-Bench TelecomNot measured90.6%Only MiMo-V2.5 measured
APEX-Agents58.6%Not measuredOnly Muse Spark 1.3 measured
Neither model has a result on the other 24 boards here
ReasoningLike-for-likePublic boards, shown as published, kept out of the index70
Reasoning benchmarks for Muse Spark 1.3 and MiMo-V2.5
BenchmarkMuse Spark 1.3MiMo-V2.5Leader
GPQA DiamondNot measured81.6%Only MiMo-V2.5 measured
LiveBench reasoning89.7%Not measuredOnly Muse Spark 1.3 measured
MMMU Pro (Vals AI)Not measured80.0%Only MiMo-V2.5 measured
GPQA Diamond (Artificial Analysis run)94.1%84.9%Muse Spark 1.3
Humanity's Last Exam (Artificial Analysis run)48.7%27.2%Muse Spark 1.3
Chess puzzles37.0%Not measuredOnly Muse Spark 1.3 measured
Mystery game puzzles25.0%Not measuredOnly Muse Spark 1.3 measured
LMArena Text: hard prompts15031450Muse Spark 1.3
LMArena Text: expert15191459Muse Spark 1.3
LMArena Text: hard prompts in English15001461Muse Spark 1.3
LMArena Vision: diagrams13301269Muse Spark 1.3
LMArena Vision: homework12961262Muse Spark 1.3
Neither model has a result on the other 10 boards here
MathLike-for-likePublic boards, shown as published, kept out of the index30
Math benchmarks for Muse Spark 1.3 and MiMo-V2.5
BenchmarkMuse Spark 1.3MiMo-V2.5Leader
OTIS Mock AIME99.2%Not measuredOnly Muse Spark 1.3 measured
FrontierMath, tiers 1 to 374.4%Not measuredOnly Muse Spark 1.3 measured
FrontierMath, tier 446.3%Not measuredOnly Muse Spark 1.3 measured
ProofBench58.0%16.0%Muse Spark 1.3
LMArena Text: math14971436Muse Spark 1.3
LMArena Text: mathematical work14911451Muse Spark 1.3
Neither model has a result on the other 7 boards here
KnowledgeLike-for-likePublic boards, shown as published, kept out of the index40
Knowledge benchmarks for Muse Spark 1.3 and MiMo-V2.5
BenchmarkMuse Spark 1.3MiMo-V2.5Leader
MMLU ProNot measured82.9%Only MiMo-V2.5 measured
LegalBench (Vals AI)Not measured78.9%Only MiMo-V2.5 measured
CorpFin (Vals AI)Not measured59.9%Only MiMo-V2.5 measured
TaxEval (Vals AI)Not measured71.8%Only MiMo-V2.5 measured
MortgageTax (Vals AI)Not measured59.3%Only MiMo-V2.5 measured
MedCode (Vals AI)Not measured31.9%Only MiMo-V2.5 measured
LMArena Text: science15071440Muse Spark 1.3
LMArena Text: medicine and healthcare14931432Muse Spark 1.3
LMArena Text: legal and government14991425Muse Spark 1.3
LMArena Text: business and finance14901432Muse Spark 1.3
Neither model has a result on the other 8 boards here
Web designLike-for-likePublic boards, shown as published, kept out of the index80
Web design benchmarks for Muse Spark 1.3 and MiMo-V2.5
BenchmarkMuse Spark 1.3MiMo-V2.5Leader
Design Arena: websites13561265Muse Spark 1.3
Design Arena: UI components13491255Muse Spark 1.3
Design Arena: game dev13281249Muse Spark 1.3
Design Arena: data viz13431250Muse Spark 1.3
Design Arena: 3D13581215Muse Spark 1.3
Design Arena: all code categories13521260Muse Spark 1.3
Design Arena: SVG13011179Muse Spark 1.3
Design Arena: ASCII art12781140Muse Spark 1.3
LiveBench design74.8%Not measuredOnly Muse Spark 1.3 measured
GeneralLike-for-likePublic boards, shown as published, kept out of the index240
General benchmarks for Muse Spark 1.3 and MiMo-V2.5
BenchmarkMuse Spark 1.3MiMo-V2.5Leader
LiveBench data analysis79.6%Not measuredOnly Muse Spark 1.3 measured
SAGE (Vals AI)Not measured43.3%Only MiMo-V2.5 measured
MedScribe (Vals AI)Not measured72.2%Only MiMo-V2.5 measured
Vals Multimodal IndexNot measured52.8%Only MiMo-V2.5 measured
IFBenchNot measured67.1%Only MiMo-V2.5 measured
Long context reasoning (AA-LCR)83.0%73.0%Muse Spark 1.3
DTBench96.5%Not measuredOnly Muse Spark 1.3 measured
LMCA53.9%Not measuredOnly Muse Spark 1.3 measured
LMArena Text14901428Muse Spark 1.3
LMArena Text: instruction following14791435Muse Spark 1.3
LMArena Text: creative writing14621393Muse Spark 1.3
LMArena Vision13081247Muse Spark 1.3
LMArena Text: English14951447Muse Spark 1.3
LMArena Text: non-English14811405Muse Spark 1.3
LMArena Text: Chinese15321469Muse Spark 1.3
LMArena Text: German15131421Muse Spark 1.3
LMArena Text: Japanese14701306Muse Spark 1.3
LMArena Text: Korean14901361Muse Spark 1.3
LMArena Text: French15111448Muse Spark 1.3
LMArena Text: Spanish14961414Muse Spark 1.3
LMArena Text: Russian14911396Muse Spark 1.3
LMArena Text: Polish14901413Muse Spark 1.3
LMArena Text: multi-turn14871445Muse Spark 1.3
LMArena Text: longer queries14881445Muse Spark 1.3
LMArena Text: writing and language14701409Muse Spark 1.3
LMArena Text: entertainment and media14571399Muse Spark 1.3
LMArena Vision: English12981259Muse Spark 1.3
LMArena Vision: Chinese13841326Muse Spark 1.3
LMArena Vision: reading text13191256Muse Spark 1.3
LMArena Vision: humor12931226Muse Spark 1.3
LMArena Vision: recognizing thingsNot measured1189Only MiMo-V2.5 measured
LMArena Vision: creative writing12961230Muse Spark 1.3
Neither model has a result on the other 14 boards here
Image generationNot comparablePublic boards, shown as published, kept out of the index0 boards, none shared
Image generation benchmarks for Muse Spark 1.3 and MiMo-V2.5
BenchmarkMuse Spark 1.3MiMo-V2.5Leader
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 1.3$0.0034Fits in one request
MiMo-V2.5$0.0003Fits in one request

MiMo-V2.5 costs less

Repository review

50K input + 3K output tokens

Muse Spark 1.3$0.075Fits in one request
MiMo-V2.5$0.0094Fits in one request

MiMo-V2.5 costs less

Agent loop

200K input + 10K output tokens

Muse Spark 1.3$0.292Fits in one request
MiMo-V2.5$0.037Fits in one request

MiMo-V2.5 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 1.3 and MiMo-V2.5
SpecificationMeta Muse Spark 1.3Xiaomi MiMo-V2.5
MakerMetaXiaomi
WeightsNo public weights listedOpen weights
ReleasedSeptember 2, 2026April 22, 2026
Context window1.05M1.05M
Input $/Mtok$1.25$0.168
Output $/Mtok$4.25$0.336
Coding index57.450.0
Independent measurements behind it43
Cost per solved taskNot computable$0.01
SourceOpenRouter listingOpenRouter listing

Questions

Is Muse Spark 1.3 better than MiMo-V2.5 for coding?

Pick Muse Spark 1.3 for coding: it scores 57.4 on the Vibe Coding Index against 50.0 for MiMo-V2.5. Pick MiMo-V2.5 for output tokens 12.6x cheaper ($0.336 vs $4.25 per million) and a larger context window (1.05M against 1.05M tokens).

Which is cheaper, Muse Spark 1.3 or MiMo-V2.5?

Muse Spark 1.3 costs $1.25 per million input tokens and $4.25 per million output tokens; MiMo-V2.5 costs $0.168 and $0.336. Cost per solved task is known for MiMo-V2.5 only.

Which has the bigger context window, Muse Spark 1.3 or MiMo-V2.5?

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

How many benchmarks is the Muse Spark 1.3 vs MiMo-V2.5 comparison based on?

63 benchmarks have a result for both models as of October 22, 2026. Muse Spark 1.3's coding index rests on 4 independent benchmarks and MiMo-V2.5's on 3. 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-1-3-vs-xiaomi-mimo-v2-5" title="Muse Spark 1.3 vs MiMo-V2.5, 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-1-3-vs-xiaomi-mimo-v2-5">LLMBenchmark.ai, Muse Spark 1.3 vs MiMo-V2.5</a></p>