BenchLeader

Gemini 4 Carbon vs Qwen3.8 Max

Full profiles: Gemini 4 Carbon (Google) and Qwen3.8 Max (Alibaba): every benchmark, price and rank.

Updated · Data from 10 sources

As of 29 Oct 2026, Gemini 4 Carbon is ahead of Qwen3.8 Max on quality (65.1 vs 58.7 on the BenchLeader Index), but Qwen3.8 Max is 2.7× cheaper at $3.00 vs $8.00 per 1M tokens blended. Gemini 4 Carbon leads in every category we measure both in. Gemini 4 Carbon streams ~2× faster.

Key facts (as of 29 Oct 2026)

  • Gemini 4 Carbon scores 65.1 on the BenchLeader Index and Qwen3.8 Max scores 58.7 (BenchLeader, 29 Oct 2026).
  • Gemini 4 Carbon costs $8.00 per 1M tokens blended (list price, 29 Oct 2026).
  • Qwen3.8 Max costs $3.00 per 1M tokens blended (list price, 29 Oct 2026).
  • Gemini 4 Carbon streams ~2× faster than Qwen3.8 Max (Artificial Analysis, 7-day median, 29 Oct 2026).
  • Of the 22 benchmarks both models have, Gemini 4 Carbon leads 21 (BenchLeader, 29 Oct 2026).

Which to pick for…

The pick's numbers come first. Category scores on the BenchLeader scale (50 is the average model, 15 points one standard deviation). High confidence means a lead of half a standard deviation or more; under one point is called either.

Use casePickWhyConfidence
CodingGemini 4 Carbon72 vs 61 category score; FrontierCode 2.0 (AA) 40.6% vs 23.4%High
ReasoningGemini 4 Carbon79 vs 51 category score; HLE-Diamond (AA) 69.1% vs 24.0%High
KnowledgeGemini 4 Carbon76 vs 58 category score; AA-Omniscience v1.1 53.5 vs 10.5High
Long documentsEither65 vs 65 category score; AA-LCR v1.1 79.3% vs 80.3%Either
Chat quality (human preference)–Only Qwen3.8 Max has an Arena rating (68 category score)Not comparable
Lowest costQwen3.8 Max$3.00 vs $8.00 per 1M blended; agentic coding session $0.144 vs $0.320–
Fastest first answerQwen3.8 Max52.1 s (Qwen3.8 Max (max)) vs 103.1 s (Gemini 4 Carbon (high)) to the first answer token–
High volume on a budgetNeither flagshipA smaller model is usually the better fit: Cheapest good LLMs, Fastest LLMs–

Key differences

  • Gemini 4 Carbon (high) leads on quality: 65.1 vs 58.7.
  • Gemini 4 Carbon (high) is stronger in coding, knowledge, reasoning.
  • Qwen3.8 Max (max) is stronger in long context, agents & tools, composite, human preference, maths, multimodal.
  • Qwen3.8 Max (max) is 2.7× cheaper ($3.00 vs $8.00 per 1M blended).
  • Gemini 4 Carbon (high) streams 2.4× faster (100 vs 41 tokens per second).

At a glance

SpecGemini 4 CarbonQwen3.8 Max
DeveloperGoogleAlibaba
Released28 Oct 20263 Aug 2026
Context window (tokens)1,000,0001,000,000
Compared atGemini 4 Carbon (high)Qwen3.8 Max (max)
Open weightsNoNo
Price in / out / cached input per 1M$4.00 / $20.00 / –$2.00 / $6.00 / $0.222

Category by category

Category scores on the BenchLeader scale: 50 is the average evaluated model, 15 points is one standard deviation. A gap under one point is called level.

CategoryGemini 4 Carbon (high)Qwen3.8 Max (max)Leader
Reasoning78.951.3Gemini 4 Carbon
Coding71.761.3Gemini 4 Carbon
Agents & tools–58.3not comparable
Maths–64.7not comparable
Knowledge75.858.0Gemini 4 Carbon
Human preference–67.5not comparable
Multimodal–65.9not comparable
Long context64.565.0level
Composite–45.5not comparable

Where sources disagree

Across the 22 benchmarks both have, Gemini 4 Carbon leads 21, Qwen3.8 Max leads 1. Every overall index that rates both puts Gemini 4 Carbon ahead.

Overall indexGemini 4 Carbon (high)Qwen3.8 Max (max)Leader
BenchLeader Index65.158.7Gemini 4 Carbon
AA Intelligence Index v5.059.433.5Gemini 4 Carbon

Each publisher runs its own tasks, harnesses and effort settings, so their overall verdicts can differ; BenchLeader reconciles them on one scale. † measured at another effort setting of the same model (the publisher did not test the one compared here).

Price, speed and latency

List prices blended at three input tokens per output token. Per-task prices use the token counts on the methodology page; suite cost is what Artificial Analysis paid to run its whole Intelligence Index.

MeasureGemini 4 Carbon (high)Qwen3.8 Max (max)
Blended price per 1M tokens$8.00$3.00
Input / output per 1M$4.00 / $20.00$2.00 / $6.00
Cached input per 1M–$0.222
Price per task: chat reply$0.0076$0.0026
Price per task: summarize a 30-page report$0.060$0.028
Price per task: code edit$0.054$0.021
Price per task: agentic coding session$0.320$0.144
Price per task: structured extraction$0.012$0.0052
Cost to run a full benchmark suite$7.76$10.02
Output speed100 tok/s41 tok/s
Time to first answer103.1 s52.1 s
Time to a complete answer108.1 s64.3 s

Per token is not per task: on Artificial Analysis' full suite Gemini 4 Carbon (high) cost $7.76 and Qwen3.8 Max (max) $10.02, because Qwen3.8 Max (max) used about 3.4× as many tokens for the same work, which a per-token price hides.

Each model is compared at its best-ranked reasoning-effort setting. Gemini 4 Carbon (high) scores 65.1 and takes 103 s to its first answer token. Qwen3.8 Max (max) scores 58.7 and takes 52 s to its first answer token; Qwen3.8 Max (xhigh) scores 57.0 in 2 s. Higher effort means more thinking before the answer: better scores, longer waits and more tokens billed. How reasoning effort changes scores and cost.

Every benchmark

115 benchmarks, grouped by category; each name links to the board and its leaders. † measured at another effort setting of the same model, shown for reference and not counted as a win.

MetricPublisherGemini 4 Carbon (high)Qwen3.8 Max (max)
BenchLeader IndexBenchLeader65.158.7
Coding scoreBenchLeader71.761.3
Knowledge scoreBenchLeader75.858.0
Long context scoreBenchLeader64.565.0
Reasoning scoreBenchLeader78.951.3
Agents & tools scoreBenchLeader–58.3
Composite scoreBenchLeader–45.5
Human preference scoreBenchLeader–67.5
Maths scoreBenchLeader–64.7
Multimodal scoreBenchLeader–65.9
Blended price $/MBenchLeader$8.00$3.00
Output speedBenchLeader100 tok/s41 tok/s
Time to first answerBenchLeader103.1 s52.1 s
Context windowBenchLeader1,000,000 tokens1,000,000 tokens
Reasoning
GPQA DiamondEpoch AI Benchmarking Hub–92.7%†
Arena Hard PromptsArena (LMArena)–1504
LiveBench 2.0 ReasoningLiveBench–88.2%
LiveBench 1.0 ReasoningLiveBench–88.2%
GPQA Diamond (AA)Artificial Analysis–92.8%
Humanity's Last Exam (AA)Artificial Analysis60.4%43.1%
HLE-Diamond (AA)Artificial Analysis69.1%24.0%
GPQA Diamond (Vals)Vals AI–93.7%
CritPtArtificial Analysis36.0%20.0%
CritPt v2 hard subset (AA)Artificial Analysis63.0%28.5%
MysteryMechanismVals AI–23.9%
Chess PuzzlesEpoch AI Benchmarking Hub–46.0%†
Mystery Game PuzzlesEpoch AI Benchmarking Hub–38.0%†
LMCAEpoch AI Benchmarking Hub–46.2%†
DTBenchEpoch AI Benchmarking Hub–92.0%†
Coding
SciCodeSciCode64.2%53.2%
Arena CodingArena (LMArena)–1524
Arena WebDevArena (LMArena)–1676
LiveBench 2.0 CodingLiveBench–60.3%
LiveBench 1.0 CodingLiveBench–72.9%
LiveCodeBenchVals AI–87.8%
IOIVals AI–68.9%
SWE-bench (Vals)Vals AI–85.6%
Code MigrationVals AI–24.0%
ProgramBenchVals AI–0.0%
Show all 115 benchmarks
MetricPublisherGemini 4 Carbon (high)Qwen3.8 Max (max)
Coding
SWE-bench MultimodalVals AI–42.5%
Vibe Code Bench 1-100Vals AI–12.8%
Vibe Code Bench v1.1Vals AI89.1%64.7%
DeepSWE v1.1Epoch AI Benchmarking Hub–57.5%†
FrontierSWEEpoch AI Benchmarking Hub–17.8%†
Terminal-Bench 4.0 (AA)Artificial Analysis65.2%38.9%
Terminal-Bench 2.1 (AA)Artificial Analysis–88.8%
Startrise FrontendStartrise–71.3%
FrontierCode 1.1 (AA)Artificial Analysis48.5%43.2%
FrontierCode 2.0 (AA)Artificial Analysis40.6%23.4%
Agents & tools
Terminal-BenchTerminal-Bench–27.0%
APEX-AgentsMercor–63.3%
Arena AgentArena (LMArena)–1.1
LiveBench Long AgenticLiveBench–29.9%
LiveBench BrowserLiveBench–49.4%
LiveBench Agentic CodingLiveBench–64.7%
Terminal-Bench 2.1 (Vals)Vals AI–67.4%
τ³-bench Bankingτ²-bench–55.1%
GDPval-AA v2.1Artificial Analysis–58.3%
τ³-Banking (AA)Artificial Analysis–51.3%
ITBench SRE (AA)Artificial Analysis–40.3%
Analyst Agent (AA)Artificial Analysis–45.0%
APEX-Agents (AA)Artificial Analysis–42.4%
CyberBenchVals AI–28.6%
Finance Agent v2Vals AI–50.6%
Finance Agent v2.1Vals AI67.2%–
Harvey's Legal Agent Benchmark v1.1Vals AI17.5%–
Harvey's Legal Agent Benchmark v1Vals AI–10.4%
Legal Research BenchVals AI55.8%47.6%
SkillsBenchVals AI–42.0%
Tax Agent BenchVals AI48.9%32.1%
Terminal-Bench 4.0 (Vals)Vals AI63.1%34.3%
Terminal-Bench ScienceVals AI–12.9%
Arena SearchArena (LMArena)–1230
Vending-Bench 2Andon Labs16484.2†–
AutomationBenchArtificial Analysis77.8%56.2%
GDP.pdf (AA)Artificial Analysis28.4%22.8%
EnterpriseOps-GymArtificial Analysis–47.6%
AA-Briefcase v1.1Artificial Analysis16091608
Terminal-Bench-Science 0.1 (AA)Artificial Analysis64.8%11.9%
Maths
FrontierMath Tiers 1–3Epoch AI Benchmarking Hub–74.7%†
FrontierMath Tier 4Epoch AI Benchmarking Hub–46.3%†
OTIS Mock AIMEEpoch AI Benchmarking Hub–100.0%†
ProofBenchVals AI–58.0%
LiveBench MathematicsLiveBench–91.3%
Arena MathsArena (LMArena)–1499
Knowledge
SimpleQA VerifiedEpoch AI Benchmarking Hub–47.3%†
LiveBench 2.0 Data AnalysisLiveBench–78.4%
LiveBench ResearchLiveBench–69.9%
LiveBench 1.0 Data AnalysisLiveBench–78.4%
AA-Omniscience v1.1Artificial Analysis53.510.5
MMLU-ProVals AI–88.6%
LegalBenchVals AI–83.6%
CorpFinVals AI–65.8%
TaxEvalVals AI–75.5%
Excel Modeling BenchmarkVals AI–60.1%
Excel Modeling Benchmark v1.1Vals AI76.5%66.0%
MedCodeVals AI–40.7%
MedScribeVals AI–85.0%
Public Benefits Bench v1.1Vals AI–67.1%
GDP.pdfEpoch AI Benchmarking Hub–23.2%†
AA-Omniscience v1.1: accuracyArtificial Analysis58.3%29.5%
AA-Omniscience v1.1: non-hallucinationArtificial Analysis88.6%72.9%
Instruction following
LiveBench LanguageLiveBench–79.7%
LiveBench Instruction FollowingLiveBench–74.1%
Arena Instruction FollowingArena (LMArena)–1475
Human preference
Arena TextArena (LMArena)–1483
Arena Creative WritingArena (LMArena)–1468
Arena Multi-turnArena (LMArena)–1494
Arena Longer QueriesArena (LMArena)–1492
Multimodal
Arena VisionArena (LMArena)–1313
LiveBench DesignLiveBench–78.6%
MMMU-ProArtificial Analysis–82.8%
MMMU-Pro (Vals)Vals AI–88.0%
MortgageTaxVals AI–64.0%
SAGEVals AI–81.8%
Blueprint-Bench 2Epoch AI Benchmarking Hub58.6%†–
AA-3DArtificial Analysis–945
Long context
AA-LCR v1.1Artificial Analysis79.3%80.3%
MLCRArtificial Analysis–26.1%
Composite
Epoch Capabilities IndexEpoch AI Benchmarking Hub–157.4
LiveBench 2.0LiveBench–61.6%
LiveBench 1.0LiveBench–78.5%
AA Intelligence Index v5.0Artificial Analysis59.433.5
AA Intelligence Index v4.3.2Artificial Analysis–45.4
AA Progress Index v1Artificial Analysis351.6323.7
Vals IndexVals AI70.4–
Vals Finance IndexVals AI66.3%–
Vals RSI IndexVals AI–21.8%
Vals Multimodal IndexVals AI–65.4%

Data as of 2026-10-29. Best configuration of each model; every score links to its source on the model pages.

What changed

  • Qwen3.8 Max (max): cached input price moved from $0.25/M to $0.22/M (11% down).
  • Qwen3.8 Max (max): BenchLeader Index 61.1 → 58.8.
  • Qwen3.8 Max (max): 5 new results (AA Intelligence Index v5.0, AA Progress Index v1, HLE-Diamond (AA)…); 4 score revisions; cost per task moved from $5.41/M to $10.02/M (85% up).
  • Qwen3.8 Max (max): cached input price moved from $0.22/M to $0.25/M (13% up).
  • Qwen3.8 Max (max): 3 score revisions.
  • Qwen3.8 Max (max): 1 score revision; cached input price moved from $0.25/M to $0.22/M (11% down).
  • Qwen3.8 Max (max): cached input price moved from $0.22/M to $0.25/M (13% up).
  • Qwen3.8 Max (max): 4 new results (Excel Modeling Benchmark v1.1, Harvey's Legal Agent Benchmark v1, Vals RSI Index…); cached input price moved from $0.25/M to $0.22/M (11% down).
  • Qwen3.8 Max (max): cached input price moved from $0.22/M to $0.25/M (13% up).
  • Qwen3.8 Max (max): 2 score revisions.

Rankings: Best LLM overall · Best LLM for coding · Best LLM for agents · Best cheap LLMs

Gemini 4 Carbon vs Qwen3.8 Max: questions

Is Gemini 4 Carbon better than Qwen3.8 Max?
Gemini 4 Carbon (high) leads on quality: 65.1 vs 58.7. The BenchLeader Index combines every independent quality benchmark; Gemini 4 Carbon (high) is ahead overall as of 29 Oct 2026, but check the category scores for your use.
Gemini 4 Carbon vs Qwen3.8 Max: which is cheaper, and will that change?
Qwen3.8 Max is cheaper today: $3.00 against $8.00 per million tokens, blended at three input tokens per output token. No price change has been announced for either.
Is Gemini 4 Carbon or Qwen3.8 Max better for coding?
Gemini 4 Carbon scores higher in coding (72 vs 61 on the category index, where 50 is average). On FrontierCode 2.0 (AA), the top shared coding benchmark, it is 40.6% for Gemini 4 Carbon against 23.4% for Qwen3.8 Max.
Which is faster, Gemini 4 Carbon or Qwen3.8 Max?
Gemini 4 Carbon streams ~2× faster (100 vs 41 output tokens per second, Artificial Analysis 7-day median).
Which is better for long documents?
They are level on long-context benchmarks (65 vs 65). Both accept 1,000,000 tokens of context.
More questions (3)
Which has lower latency?
Qwen3.8 Max answers first: 52.1 s against 103.1 s to the first answer token, as Artificial Analysis measures it. Reasoning effort drives most of this: a higher setting thinks longer before it answers.
Do independent benchmarks agree on Gemini 4 Carbon vs Qwen3.8 Max?
Across the 22 benchmarks both have, Gemini 4 Carbon leads 21, Qwen3.8 Max leads 1. Every overall index that rates both puts Gemini 4 Carbon ahead.
When was Gemini 4 Carbon released?
Gemini 4 Carbon was released on 28 Oct 2026.