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Gemini 4 Carbon vs Qwen3.8 Max (0902)

Gemini 4 Carbon leads Qwen3.8 Max (0902) on coding, 86.6 to 67.3 on the Vibe Coding Index, and Qwen3.8 Max (0902) costs 1.7x less per output token ($6.00 vs $10.00 per million). Updated November 14, 2026; 66 benchmarks have a result for both.

Replace Gemini 4 Carbon Replace Qwen3.8 Max (0902)
Gemini 4 CarbonGoogle
Coding
86.6
Overall
88.3
Output $/M
$10.00
64
Qwen3.8 Max (0902)Qwen
Coding
67.3
Overall
67.6
Output $/M
$6.00
1
vs boards won of 66 shared, 1 tied

Gemini 4 Carbon or Qwen3.8 Max (0902): which to pick

Pick Gemini 4 Carbon for coding: it scores 86.6 on the Vibe Coding Index against 67.3 for Qwen3.8 Max (0902), though on 4 benchmarks against 5.

Pick Qwen3.8 Max (0902) for output tokens 1.7x cheaper ($6.00 vs $10.00 per million) and work measured by Long context reasoning (AA-LCR), where it leads.

Model AGemini 4 CarbonGoogle86.6/1004 independent benchmarksNo cost per solved taskModel BQwen3.8 Max (0902)Qwen67.3/1005 independent benchmarks$1.32 per solved task
Shared results
66
Gemini 4 Carbon only
7
Qwen3.8 Max (0902) only
62
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, Qwen3.8 Max (0902) 67.3 from 5 benchmarks.
Widest category
Math, 21.9 points apart on average over 5 shared benchmarks.
Widest single gap
Furniture assembly: Gemini 4 Carbon 77.5% against Qwen3.8 Max (0902) 20.0%, 57.5 points apart on a 0 to 100 scale.
Output price
Gemini 4 Carbon $10.00 against Qwen3.8 Max (0902) $6.00 per million output tokens, 1.7x apart.
Context window
Gemini 4 Carbon takes 1.05M tokens, Qwen3.8 Max (0902) 1M.

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 CarbonBarsQwen3.8 Max (0902)Ties
Coding120
Intelligence20
Agentic work90
Reasoning90
Math401 tie
Knowledge70
Web design60
General151
All shared boards6411 tie
CodingLike-for-likeSix of these boards feed the Vibe Coding Index120
Coding benchmarks for Gemini 4 Carbon and Qwen3.8 Max (0902)
BenchmarkGemini 4 CarbonQwen3.8 Max (0902)Leader
LiveBench coding91.0%60.9%Gemini 4 Carbon
LMArena WebDev17681676Gemini 4 Carbon
AA Coding IndexNot measured76.2Only Qwen3.8 Max (0902) measured
LiveCodeBench (Vals AI)Not measured87.8%Only Qwen3.8 Max (0902) measured
SWE-bench Verified (Vals AI)Not measured85.6%Only Qwen3.8 Max (0902) measured
Terminal-Bench 4 (Vals AI)63.1%38.9%Gemini 4 Carbon
Vibe Code Bench (Vals AI)89.1%77.1%Gemini 4 Carbon
Code migration (Vals AI)Not measured24.0%Only Qwen3.8 Max (0902) measured
ProgramBench (Vals AI)Not measured0.0%Only Qwen3.8 Max (0902) measured
IOI (Vals AI)Not measured68.9%Only Qwen3.8 Max (0902) measured
Terminal-Bench 2.1 (Vals AI)Not measured67.4%Only Qwen3.8 Max (0902) measured
SWE-bench Multimodal (Vals AI)Not measured42.5%Only Qwen3.8 Max (0902) measured
Vibe Code Bench 1-100 (Vals AI)Not measured24.8%Only Qwen3.8 Max (0902) measured
SkillsBench (Vals AI)Not measured42.0%Only Qwen3.8 Max (0902) measured
CyberBench (Vals AI)Not measured28.6%Only Qwen3.8 Max (0902) measured
SciCodeNot measured53.2%Only Qwen3.8 Max (0902) measured
Terminal-Bench 4.0 (Artificial Analysis run)65.2%38.9%Gemini 4 Carbon
FrontierCode 2.040.6%23.4%Gemini 4 Carbon
FrontierSWE61.2%17.8%Gemini 4 Carbon
MirrorCodeNot measured52.2%Only Qwen3.8 Max (0902) measured
ALE-Bench2374.71679.1Gemini 4 Carbon
LMArena Text: coding15641502Gemini 4 Carbon
LMArena Text: software and IT15521500Gemini 4 Carbon
LMArena WebDev: React17921698Gemini 4 Carbon
LMArena WebDev: HTML17701654Gemini 4 Carbon
LMArena WebDev: from an imageNot measured1638Only Qwen3.8 Max (0902) measured
GameBench 2Not measured69.6Only Qwen3.8 Max (0902) measured
Terminal-Bench 4.0Not measured27.0%Only Qwen3.8 Max (0902) measured
CursorBench 4.060.4%Not measuredOnly Gemini 4 Carbon measured
Neither model has a result on the other 23 boards here
IntelligenceLike-for-likePublic boards, shown as published, kept out of the index20
Intelligence benchmarks for Gemini 4 Carbon and Qwen3.8 Max (0902)
BenchmarkGemini 4 CarbonQwen3.8 Max (0902)Leader
AA Intelligence Index60.033.7Gemini 4 Carbon
Epoch Capabilities Index169.8157.6Gemini 4 Carbon
Agentic workLike-for-likePublic boards, shown as published, kept out of the index90
Agentic work benchmarks for Gemini 4 Carbon and Qwen3.8 Max (0902)
BenchmarkGemini 4 CarbonQwen3.8 Max (0902)Leader
AA Agentic IndexNot measured56.0Only Qwen3.8 Max (0902) measured
Design Arena: agents building web appsNot measured1278Only Qwen3.8 Max (0902) measured
Design Arena: agents building full-stack appsNot measured1279Only Qwen3.8 Max (0902) measured
Design Arena: agents building mobile apps12841223Gemini 4 Carbon
Design Arena: agents building Android appsNot measured1196Only Qwen3.8 Max (0902) measured
Design Arena: agents building Godot gamesNot measured1215Only Qwen3.8 Max (0902) measured
Design Arena: PowerPoint slidesNot measured1252Only Qwen3.8 Max (0902) measured
Design Arena: spreadsheets12241011Gemini 4 Carbon
LiveBench research92.5%72.8%Gemini 4 Carbon
LiveBench browser80.0%49.4%Gemini 4 Carbon
LiveBench long agentic72.7%26.6%Gemini 4 Carbon
Finance Agent (Vals AI)Not measured57.9%Only Qwen3.8 Max (0902) measured
Tax Agent Bench (Vals AI)51.8%49.7%Gemini 4 Carbon
Legal Research Bench (Vals AI)55.8%47.6%Gemini 4 Carbon
Harvey's Legal Agent Benchmark (Vals AI)17.5%15.4%Gemini 4 Carbon
Excel Modeling Benchmark (Vals AI)Not measured72.0%Only Qwen3.8 Max (0902) measured
Terminal-Bench-Science (Vals AI)Not measured12.9%Only Qwen3.8 Max (0902) measured
APEX-Agents84.2%63.3%Gemini 4 Carbon
Vending-Bench 2$16,484Not measuredOnly Gemini 4 Carbon measured
LMArena SearchNot measured1260Only Qwen3.8 Max (0902) measured
τ³-BankingNot measured55.2%Only Qwen3.8 Max (0902) measured
Neither model has a result on the other 23 boards here
ReasoningLike-for-likePublic boards, shown as published, kept out of the index90
Reasoning benchmarks for Gemini 4 Carbon and Qwen3.8 Max (0902)
BenchmarkGemini 4 CarbonQwen3.8 Max (0902)Leader
GPQA DiamondNot measured93.7%Only Qwen3.8 Max (0902) measured
LiveBench reasoning90.6%88.2%Gemini 4 Carbon
MysteryMechanism (Vals AI)Not measured23.9%Only Qwen3.8 Max (0902) measured
MMMU Pro (Vals AI)Not measured88.0%Only Qwen3.8 Max (0902) measured
GPQA Diamond (Artificial Analysis run)Not measured92.8%Only Qwen3.8 Max (0902) measured
Humanity's Last Exam (Artificial Analysis run)Not measured43.1%Only Qwen3.8 Max (0902) measured
HLE-Diamond (Artificial Analysis run)69.1%24.0%Gemini 4 Carbon
CritPt v2, hard subset (Artificial Analysis run)69.0%29.5%Gemini 4 Carbon
GPQA Diamond (Epoch AI run)96.5%92.7%Gemini 4 Carbon
ARC-AGI98.5%Not measuredOnly Gemini 4 Carbon measured
ARC-AGI-294.2%Not measuredOnly Gemini 4 Carbon measured
SimpleBench92.6%Not measuredOnly Gemini 4 Carbon measured
Chess puzzles78.0%46.0%Gemini 4 Carbon
Mystery game puzzles73.0%38.0%Gemini 4 Carbon
EBR-bench87.6%Not measuredOnly Gemini 4 Carbon measured
LMArena Text: hard prompts15511499Gemini 4 Carbon
LMArena Text: expert15821510Gemini 4 Carbon
LMArena Text: hard prompts in English15451505Gemini 4 Carbon
LMArena Vision: diagramsNot measured1321Only Qwen3.8 Max (0902) measured
LMArena Vision: homeworkNot measured1335Only Qwen3.8 Max (0902) measured
Neither model has a result on the other 6 boards here
MathLike-for-likePublic boards, shown as published, kept out of the index40
Math benchmarks for Gemini 4 Carbon and Qwen3.8 Max (0902)
BenchmarkGemini 4 CarbonQwen3.8 Max (0902)Leader
OTIS Mock AIME100.0%100.0%Tie
FrontierMath, tiers 1 to 390.5%74.7%Gemini 4 Carbon
FrontierMath, tier 495.1%46.3%Gemini 4 Carbon
ProofBenchNot measured58.0%Only Qwen3.8 Max (0902) measured
LMArena Text: mathNot measured1509Only Qwen3.8 Max (0902) measured
LMArena Text: mathematical work15381497Gemini 4 Carbon
MathArena85.4%47.1%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 index70
Knowledge benchmarks for Gemini 4 Carbon and Qwen3.8 Max (0902)
BenchmarkGemini 4 CarbonQwen3.8 Max (0902)Leader
MMLU ProNot measured88.6%Only Qwen3.8 Max (0902) measured
LegalBench (Vals AI)Not measured83.6%Only Qwen3.8 Max (0902) measured
CorpFin (Vals AI)Not measured65.8%Only Qwen3.8 Max (0902) measured
TaxEval (Vals AI)Not measured75.5%Only Qwen3.8 Max (0902) measured
MortgageTax (Vals AI)Not measured64.0%Only Qwen3.8 Max (0902) measured
MedCode (Vals AI)Not measured40.7%Only Qwen3.8 Max (0902) measured
AA-Omniscience53.510.5Gemini 4 Carbon
SimpleQA Verified77.7%47.3%Gemini 4 Carbon
LMArena Text: science15351514Gemini 4 Carbon
LMArena Text: medicine and healthcare15251514Gemini 4 Carbon
LMArena Text: legal and government15421498Gemini 4 Carbon
LMArena Text: business and finance15201481Gemini 4 Carbon
FACTS Benchmark Suite78.4%60.3%Gemini 4 Carbon
PRBench Legal53.3%Not measuredOnly Gemini 4 Carbon measured
Neither model has a result on the other 7 boards here
Web designLike-for-likePublic boards, shown as published, kept out of the index60
Web design benchmarks for Gemini 4 Carbon and Qwen3.8 Max (0902)
BenchmarkGemini 4 CarbonQwen3.8 Max (0902)Leader
Design Arena: websites13191269Gemini 4 Carbon
Design Arena: UI components13571335Gemini 4 Carbon
Design Arena: game dev13261310Gemini 4 Carbon
Design Arena: data vizNot measured1281Only Qwen3.8 Max (0902) measured
Design Arena: 3D14341318Gemini 4 Carbon
Design Arena: all code categories13481287Gemini 4 Carbon
Design Arena: ASCII artNot measured1189Only Qwen3.8 Max (0902) measured
LiveBench design80.2%76.6%Gemini 4 Carbon
Neither model has a result on the other 1 board here
GeneralLike-for-likePublic boards, shown as published, kept out of the index151
General benchmarks for Gemini 4 Carbon and Qwen3.8 Max (0902)
BenchmarkGemini 4 CarbonQwen3.8 Max (0902)Leader
Vals Index70.5%59.1%Gemini 4 Carbon
LiveBench data analysis86.5%78.4%Gemini 4 Carbon
Public Benefits Bench (Vals AI)Not measured67.1%Only Qwen3.8 Max (0902) measured
SAGE (Vals AI)Not measured81.8%Only Qwen3.8 Max (0902) measured
MedScribe (Vals AI)Not measured85.0%Only Qwen3.8 Max (0902) measured
Vals Multimodal IndexNot measured65.4%Only Qwen3.8 Max (0902) measured
Long context reasoning (AA-LCR)79.3%80.3%Qwen3.8 Max (0902)
GDPval-AA17331674Gemini 4 Carbon
DTBenchNot measured92.0%Only Qwen3.8 Max (0902) measured
LMCANot measured46.2%Only Qwen3.8 Max (0902) measured
Furniture assembly77.5%20.0%Gemini 4 Carbon
LMArena Text15381485Gemini 4 Carbon
LMArena Text: instruction following15391483Gemini 4 Carbon
LMArena Text: creative writing15331482Gemini 4 Carbon
LMArena VisionNot measured1312Only Qwen3.8 Max (0902) measured
LMArena Text: English15301494Gemini 4 Carbon
LMArena Text: non-English15341475Gemini 4 Carbon
LMArena Text: Chinese16131543Gemini 4 Carbon
LMArena Text: GermanNot measured1475Only Qwen3.8 Max (0902) measured
LMArena Text: JapaneseNot measured1463Only Qwen3.8 Max (0902) measured
LMArena Text: KoreanNot measured1455Only Qwen3.8 Max (0902) measured
LMArena Text: FrenchNot measured1504Only Qwen3.8 Max (0902) measured
LMArena Text: SpanishNot measured1494Only Qwen3.8 Max (0902) measured
LMArena Text: Russian15601488Gemini 4 Carbon
LMArena Text: PolishNot measured1477Only Qwen3.8 Max (0902) measured
LMArena Text: multi-turn15691492Gemini 4 Carbon
LMArena Text: longer queries15491493Gemini 4 Carbon
LMArena Text: writing and language15421480Gemini 4 Carbon
LMArena Text: entertainment and media15271470Gemini 4 Carbon
LMArena Vision: EnglishNot measured1310Only Qwen3.8 Max (0902) measured
LMArena Vision: ChineseNot measured1353Only Qwen3.8 Max (0902) measured
LMArena Vision: reading textNot measured1322Only Qwen3.8 Max (0902) measured
LMArena Vision: humorNot measured1309Only Qwen3.8 Max (0902) measured
LMArena Vision: creative writingNot measured1310Only Qwen3.8 Max (0902) measured
Neither model has a result on the other 15 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 Qwen3.8 Max (0902)
BenchmarkGemini 4 CarbonQwen3.8 Max (0902)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

Gemini 4 Carbon$0.0070Fits in one request
Qwen3.8 Max (0902)$0.0050Fits in one request

Qwen3.8 Max (0902) costs less

Repository review

50K input + 3K output tokens

Gemini 4 Carbon$0.130Fits in one request
Qwen3.8 Max (0902)$0.118Fits in one request

Qwen3.8 Max (0902) costs less

Agent loop

200K input + 10K output tokens

Gemini 4 Carbon$0.500Fits in one request
Qwen3.8 Max (0902)$0.460Fits in one request

Qwen3.8 Max (0902) 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 Qwen3.8 Max (0902)
SpecificationGoogle Gemini 4 CarbonQwen3.8 Max (0902)
MakerGoogleQwen
WeightsNo public weights listedNo public weights listed
ReleasedNovember 10, 2026September 3, 2026
Context window1.05M1M
Input $/Mtok$2.00$2.00
Output $/Mtok$10.00$6.00
Coding index86.667.3
Independent measurements behind it45
Cost per solved taskNot computable$1.32
SourceOpenRouter listingOpenRouter listing

Questions

Is Gemini 4 Carbon better than Qwen3.8 Max (0902) for coding?

Pick Gemini 4 Carbon for coding: it scores 86.6 on the Vibe Coding Index against 67.3 for Qwen3.8 Max (0902), though on 4 benchmarks against 5. Pick Qwen3.8 Max (0902) for output tokens 1.7x cheaper ($6.00 vs $10.00 per million) and work measured by Long context reasoning (AA-LCR), where it leads.

Which is cheaper, Gemini 4 Carbon or Qwen3.8 Max (0902)?

Gemini 4 Carbon costs $2.00 per million input tokens and $10.00 per million output tokens; Qwen3.8 Max (0902) costs $2.00 and $6.00. Cost per solved task is known for Qwen3.8 Max (0902) only.

Which has the bigger context window, Gemini 4 Carbon or Qwen3.8 Max (0902)?

Gemini 4 Carbon, with 1.05M tokens against 1M.

How many benchmarks is the Gemini 4 Carbon vs Qwen3.8 Max (0902) comparison based on?

66 benchmarks have a result for both models as of November 14, 2026. Gemini 4 Carbon's coding index rests on 4 independent benchmarks and Qwen3.8 Max (0902)'s on 5. Where only one model has a result, the page says so instead of naming a winner.

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