Enter opens the highlighted result. Esc closes.

Gemini 4 Carbon vs Muse Spark 1.3

Gemini 4 Carbon leads Muse Spark 1.3 on coding, 86.6 to 56.1 on the Vibe Coding Index, and Muse Spark 1.3 costs 2.4x less per output token ($4.25 vs $10.00 per million). Updated November 14, 2026; 63 benchmarks have a result for both.

Replace Gemini 4 Carbon Replace Muse Spark 1.3
Gemini 4 CarbonGoogle
Coding
86.6
Overall
88.3
Output $/M
$10.00
58
Muse Spark 1.3Meta
Coding
56.1
Overall
64.3
Output $/M
$4.25
5
vs boards won of 63 shared

Gemini 4 Carbon or Muse Spark 1.3: which to pick

Pick Gemini 4 Carbon for coding: it scores 86.6 on the Vibe Coding Index against 56.1 for Muse Spark 1.3.

Pick Muse Spark 1.3 for output tokens 2.4x cheaper ($4.25 vs $10.00 per million) and work measured by PRBench Legal or Design Arena: websites, where it leads.

Model AGemini 4 CarbonGoogle86.6/1004 independent benchmarksNo cost per solved taskModel BMuse Spark 1.3Meta56.1/1004 independent benchmarksNo cost per solved task
Shared results
63
Gemini 4 Carbon only
10
Muse Spark 1.3 only
48
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
Gemini 4 Carbon 86.6 from 4 benchmarks, Muse Spark 1.3 56.1 from 4 benchmarks.
Widest category
Math, 24.3 points apart on average over 5 shared benchmarks.
Widest single gap
Terminal-Bench 4 (Vals AI): Gemini 4 Carbon 63.1% against Muse Spark 1.3 10.6%, 70.0 points apart on a 0 to 100 scale.
Output price
Gemini 4 Carbon $10.00 against Muse Spark 1.3 $4.25 per million output tokens, 2.4x apart.
Context window
Both take 1.05M tokens.

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
CategoryGemini 4 CarbonBarsMuse Spark 1.3Ties
Coding130
Intelligence20
Agentic work80
Reasoning90
Math50
Knowledge51
Web design33
General131
All shared boards585
CodingLike-for-likeSix of these boards feed the Vibe Coding Index130
Coding benchmarks for Gemini 4 Carbon and Muse Spark 1.3
BenchmarkGemini 4 CarbonMuse Spark 1.3Leader
LiveBench coding91.0%84.4%Gemini 4 Carbon
LMArena WebDev17681655Gemini 4 Carbon
AA Coding IndexNot measured75.8Only Muse Spark 1.3 measured
Terminal-Bench 4 (Vals AI)63.1%10.6%Gemini 4 Carbon
Vibe Code Bench (Vals AI)89.1%82.9%Gemini 4 Carbon
Code migration (Vals AI)Not measured27.6%Only Muse Spark 1.3 measured
ProgramBench (Vals AI)Not measured0.5%Only Muse Spark 1.3 measured
IOI (Vals AI)Not measured43.9%Only Muse Spark 1.3 measured
Terminal-Bench 2.1 (Vals AI)Not measured72.3%Only Muse Spark 1.3 measured
CyberBench (Vals AI)Not measured69.4%Only Muse Spark 1.3 measured
SciCodeNot measured59.7%Only Muse Spark 1.3 measured
Terminal-Bench 4.0 (Artificial Analysis run)65.2%33.3%Gemini 4 Carbon
FrontierCode 2.040.6%23.1%Gemini 4 Carbon
FrontierSWE61.2%25.8%Gemini 4 Carbon
MirrorCodeNot measured54.4%Only Muse Spark 1.3 measured
ALE-Bench2374.71688.3Gemini 4 Carbon
LMArena Text: coding15641509Gemini 4 Carbon
LMArena Text: software and IT15521510Gemini 4 Carbon
LMArena WebDev: React17921669Gemini 4 Carbon
LMArena WebDev: HTML17701653Gemini 4 Carbon
LMArena WebDev: from an imageNot measured1637Only Muse Spark 1.3 measured
GameBench 2Not measured68.5Only Muse Spark 1.3 measured
Terminal-Bench 4.0Not measured14.5%Only Muse Spark 1.3 measured
CursorBench 4.060.4%41.6%Gemini 4 Carbon
ProgramBenchNot measured2.5%Only Muse Spark 1.3 measured
Neither model has a result on the other 27 boards here
IntelligenceLike-for-likePublic boards, shown as published, kept out of the index20
Intelligence benchmarks for Gemini 4 Carbon and Muse Spark 1.3
BenchmarkGemini 4 CarbonMuse Spark 1.3Leader
AA Intelligence Index60.036.6Gemini 4 Carbon
Epoch Capabilities Index169.8158.2Gemini 4 Carbon
Agentic workLike-for-likePublic boards, shown as published, kept out of the index80
Agentic work benchmarks for Gemini 4 Carbon and Muse Spark 1.3
BenchmarkGemini 4 CarbonMuse Spark 1.3Leader
AA Agentic IndexNot measured55.5Only Muse Spark 1.3 measured
Design Arena: agents building web appsNot measured1273Only Muse Spark 1.3 measured
Design Arena: agents building full-stack appsNot measured1270Only Muse Spark 1.3 measured
Design Arena: agents building mobile apps12841204Gemini 4 Carbon
Design Arena: agents building Android appsNot measured1279Only Muse Spark 1.3 measured
Design Arena: agents building Godot gamesNot measured1218Only Muse Spark 1.3 measured
Design Arena: PowerPoint slidesNot measured1213Only Muse Spark 1.3 measured
Design Arena: spreadsheets12241076Gemini 4 Carbon
LiveBench research92.5%82.5%Gemini 4 Carbon
LiveBench browser80.0%30.9%Gemini 4 Carbon
LiveBench long agentic72.7%47.9%Gemini 4 Carbon
Finance Agent (Vals AI)Not measured58.9%Only Muse Spark 1.3 measured
Tax Agent Bench (Vals AI)51.8%37.9%Gemini 4 Carbon
Legal Research Bench (Vals AI)55.8%40.9%Gemini 4 Carbon
Harvey's Legal Agent Benchmark (Vals AI)17.5%Not measuredOnly Gemini 4 Carbon measured
Excel Modeling Benchmark (Vals AI)Not measured62.7%Only Muse Spark 1.3 measured
Terminal-Bench-Science (Vals AI)Not measured4.3%Only Muse Spark 1.3 measured
APEX-Agents84.2%58.6%Gemini 4 Carbon
Vending-Bench 2$16,484Not measuredOnly Gemini 4 Carbon measured
Neither model has a result on the other 25 boards here
ReasoningLike-for-likePublic boards, shown as published, kept out of the index90
Reasoning benchmarks for Gemini 4 Carbon and Muse Spark 1.3
BenchmarkGemini 4 CarbonMuse Spark 1.3Leader
LiveBench reasoning90.6%89.7%Gemini 4 Carbon
GPQA Diamond (Artificial Analysis run)Not measured94.1%Only Muse Spark 1.3 measured
Humanity's Last Exam (Artificial Analysis run)Not measured48.7%Only Muse Spark 1.3 measured
HLE-Diamond (Artificial Analysis run)69.1%33.7%Gemini 4 Carbon
CritPt v2, hard subset (Artificial Analysis run)69.0%48.0%Gemini 4 Carbon
GPQA Diamond (Epoch AI run)96.5%Not measuredOnly Gemini 4 Carbon measured
ARC-AGI98.5%Not measuredOnly Gemini 4 Carbon measured
ARC-AGI-294.2%Not measuredOnly Gemini 4 Carbon measured
SimpleBench92.6%81.8%Gemini 4 Carbon
Chess puzzles78.0%37.0%Gemini 4 Carbon
Mystery game puzzles73.0%25.0%Gemini 4 Carbon
EBR-bench87.6%Not measuredOnly Gemini 4 Carbon measured
LMArena Text: hard prompts15511502Gemini 4 Carbon
LMArena Text: expert15821509Gemini 4 Carbon
LMArena Text: hard prompts in English15451500Gemini 4 Carbon
LMArena Vision: diagramsNot measured1336Only Muse Spark 1.3 measured
LMArena Vision: homeworkNot measured1309Only Muse Spark 1.3 measured
Humanity's Last Exam (Scale run)Not measured25.4%Only Muse Spark 1.3 measured
Neither model has a result on the other 8 boards here
MathLike-for-likePublic boards, shown as published, kept out of the index50
Math benchmarks for Gemini 4 Carbon and Muse Spark 1.3
BenchmarkGemini 4 CarbonMuse Spark 1.3Leader
OTIS Mock AIME100.0%99.2%Gemini 4 Carbon
FrontierMath, tiers 1 to 390.5%74.4%Gemini 4 Carbon
FrontierMath, tier 495.1%46.3%Gemini 4 Carbon
ProofBenchNot measured58.0%Only Muse Spark 1.3 measured
LMArena Text: mathNot measured1498Only Muse Spark 1.3 measured
LMArena Text: mathematical work15381494Gemini 4 Carbon
MathArena85.4%36.7%Gemini 4 Carbon
Neither model has a result on the other 7 boards here
KnowledgeLike-for-likePublic boards, shown as published, kept out of the index51
Knowledge benchmarks for Gemini 4 Carbon and Muse Spark 1.3
BenchmarkGemini 4 CarbonMuse Spark 1.3Leader
AA-Omniscience53.523.8Gemini 4 Carbon
SimpleQA Verified77.7%Not measuredOnly Gemini 4 Carbon measured
GeoBenchNot measured86.0%Only Muse Spark 1.3 measured
LMArena Text: science15351507Gemini 4 Carbon
LMArena Text: medicine and healthcare15251496Gemini 4 Carbon
LMArena Text: legal and government15421496Gemini 4 Carbon
LMArena Text: business and finance15201484Gemini 4 Carbon
FACTS Benchmark Suite78.4%Not measuredOnly Gemini 4 Carbon measured
PRBench FinanceNot measured59.5%Only Muse Spark 1.3 measured
PRBench Legal53.3%61.6%Muse Spark 1.3
Neither model has a result on the other 11 boards here
Web designLike-for-likePublic boards, shown as published, kept out of the index33
Web design benchmarks for Gemini 4 Carbon and Muse Spark 1.3
BenchmarkGemini 4 CarbonMuse Spark 1.3Leader
Design Arena: websites13191360Muse Spark 1.3
Design Arena: UI components13571345Gemini 4 Carbon
Design Arena: game dev13261330Muse Spark 1.3
Design Arena: data vizNot measured1342Only Muse Spark 1.3 measured
Design Arena: 3D14341347Gemini 4 Carbon
Design Arena: all code categories13481351Muse Spark 1.3
Design Arena: SVGNot measured1295Only Muse Spark 1.3 measured
Design Arena: ASCII artNot measured1300Only Muse Spark 1.3 measured
LiveBench design80.2%74.8%Gemini 4 Carbon
GeneralLike-for-likePublic boards, shown as published, kept out of the index131
General benchmarks for Gemini 4 Carbon and Muse Spark 1.3
BenchmarkGemini 4 CarbonMuse Spark 1.3Leader
Vals Index70.5%Not measuredOnly Gemini 4 Carbon measured
LiveBench data analysis86.5%79.6%Gemini 4 Carbon
Long context reasoning (AA-LCR)79.3%83.0%Muse Spark 1.3
GDPval-AA17331681Gemini 4 Carbon
DTBenchNot measured96.5%Only Muse Spark 1.3 measured
LMCANot measured53.9%Only Muse Spark 1.3 measured
Furniture assembly77.5%Not measuredOnly Gemini 4 Carbon measured
LMArena Text15381492Gemini 4 Carbon
LMArena Text: instruction following15391479Gemini 4 Carbon
LMArena Text: creative writing15331467Gemini 4 Carbon
LMArena VisionNot measured1310Only Muse Spark 1.3 measured
LMArena Text: English15301495Gemini 4 Carbon
LMArena Text: non-English15341483Gemini 4 Carbon
LMArena Text: Chinese16131528Gemini 4 Carbon
LMArena Text: GermanNot measured1508Only Muse Spark 1.3 measured
LMArena Text: JapaneseNot measured1482Only Muse Spark 1.3 measured
LMArena Text: KoreanNot measured1483Only Muse Spark 1.3 measured
LMArena Text: FrenchNot measured1509Only Muse Spark 1.3 measured
LMArena Text: SpanishNot measured1493Only Muse Spark 1.3 measured
LMArena Text: Russian15601492Gemini 4 Carbon
LMArena Text: PolishNot measured1500Only Muse Spark 1.3 measured
LMArena Text: multi-turn15691488Gemini 4 Carbon
LMArena Text: longer queries15491489Gemini 4 Carbon
LMArena Text: writing and language15421475Gemini 4 Carbon
LMArena Text: entertainment and media15271464Gemini 4 Carbon
LMArena Vision: EnglishNot measured1300Only Muse Spark 1.3 measured
LMArena Vision: ChineseNot measured1366Only Muse Spark 1.3 measured
LMArena Vision: reading textNot measured1320Only Muse Spark 1.3 measured
LMArena Vision: humorNot measured1275Only Muse Spark 1.3 measured
LMArena Vision: creative writingNot measured1309Only Muse Spark 1.3 measured
LMArena DocumentNot measured1473Only Muse Spark 1.3 measured
Neither model has a result on the other 18 boards here
Image generationNot comparablePublic boards, shown as published, kept out of the index0 boards, none shared
Image generation benchmarks for Gemini 4 Carbon and Muse Spark 1.3
BenchmarkGemini 4 CarbonMuse Spark 1.3Leader
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

Gemini 4 Carbon$0.0070Fits in one request
Muse Spark 1.3$0.0034Fits in one request

Muse Spark 1.3 costs less

Repository review

50K input + 3K output tokens

Gemini 4 Carbon$0.130Fits in one request
Muse Spark 1.3$0.075Fits in one request

Muse Spark 1.3 costs less

Agent loop

200K input + 10K output tokens

Gemini 4 Carbon$0.500Fits in one request
Muse Spark 1.3$0.292Fits in one request

Muse Spark 1.3 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 Gemini 4 Carbon and Muse Spark 1.3
SpecificationGoogle Gemini 4 CarbonMeta Muse Spark 1.3
MakerGoogleMeta
WeightsNo public weights listedNo public weights listed
ReleasedNovember 10, 2026September 2, 2026
Context window1.05M1.05M
Input $/Mtok$2.00$1.25
Output $/Mtok$10.00$4.25
Coding index86.656.1
Independent measurements behind it44
Cost per solved taskNot computableNot computable
SourceOpenRouter listingOpenRouter listing

Questions

Is Gemini 4 Carbon better than Muse Spark 1.3 for coding?

Pick Gemini 4 Carbon for coding: it scores 86.6 on the Vibe Coding Index against 56.1 for Muse Spark 1.3. Pick Muse Spark 1.3 for output tokens 2.4x cheaper ($4.25 vs $10.00 per million) and work measured by PRBench Legal or Design Arena: websites, where it leads.

Which is cheaper, Gemini 4 Carbon or Muse Spark 1.3?

Gemini 4 Carbon costs $2.00 per million input tokens and $10.00 per million output tokens; Muse Spark 1.3 costs $1.25 and $4.25. Cost per solved task is known for neither of them.

Which has the bigger context window, Gemini 4 Carbon or Muse Spark 1.3?

Neither: both take 1.05M tokens.

How many benchmarks is the Gemini 4 Carbon vs Muse Spark 1.3 comparison based on?

63 benchmarks have a result for both models as of November 14, 2026. Gemini 4 Carbon's coding index rests on 4 independent benchmarks and Muse Spark 1.3's on 4. Where only one model has a result, the page says so instead of naming a winner.

Compare next

Embed this comparison on your site

Free under CC BY 4.0, while the source link stays visible. Preview the frame · Terms and other embeds

<iframe src="https://llmbenchmark.ai/embed/compare/gemini-4-carbon-vs-meta-muse-spark-1-3" title="Gemini 4 Carbon vs Muse Spark 1.3, 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/gemini-4-carbon-vs-meta-muse-spark-1-3">LLMBenchmark.ai, Gemini 4 Carbon vs Muse Spark 1.3</a></p>