Model comparison

DeepSeek V4.1 Flash vs Gemini 3 Pro

Gemini 3 Pro is the stronger model overall, scoring 54.7 to 50.3 on the Noometry Index.

Last verified . 21 shared benchmarks.

DeepSeek V4.1 Flash DeepSeek

50.3

Rank #40 Confirmed

Gemini 3 Pro Google

54.7

Rank #23 Confirmed

Summary

  • They share 21 benchmarks with published results for both. DeepSeek V4.1 Flash scores higher in 3 categories and Gemini 3 Pro in 5 categories; 5 gaps are clear of the uncertainty.
  • The widest gap is in knowledge, where Gemini 3 Pro leads 64.3 to 41.6.
  • The biggest single-benchmark swing is ProofBench: 54% for DeepSeek V4.1 Flash and 20% for Gemini 3 Pro.
  • DeepSeek V4.1 Flash has downloadable open weights; the other is API-only.

Side by side

DeepSeek V4.1 Flash and Gemini 3 Pro specifications
DeepSeek V4.1 FlashGemini 3 Pro
ProviderDeepSeekGoogle
Noometry Index50.354.7
Released2026-09-092025-11-18
WeightsOpenProprietary
Context window1M—
Max output393K—
Input $ / M tokens$0.15—
Output $ / M tokens$0.60—
Results tracked2567

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Category by category

Coding Too close to call

DeepSeek V4.1 Flash: 52.8 (#29), Gemini 3 Pro: 52.1 (#33)

Coding benchmarks
BenchmarkDeepSeek V4.1 FlashGemini 3 Pro
LMArena WebDev16201439
LMArena Coding15111482
ALE-Bench1,0921,177
SWE-bench Verified—72.9%
SWE-bench Verified (bash only)—74.2%
SWE-bench Multilingual—68.7%
SciCode51.9%—
GSO—18.6%
WeirdML—69.9%
AlgoTune—1.83

Agentic & Tool Use Not comparable

DeepSeek V4.1 Flash: —, Gemini 3 Pro: 40.5 (#21)

Agentic & Tool Use benchmarks
BenchmarkDeepSeek V4.1 FlashGemini 3 Pro
Terminal-Bench—69.4%
Berkeley Function Calling Leaderboard—72.5%
GDPval—40.3%
Remote Labor Index—1.3%
τ²-bench Airline—80.5%
τ²-bench Banking—18%
τ²-bench Retail—75.9%
τ²-bench Telecom—91%
DeepResearch Bench—46.3%
BALROG—58.1%
LMArena Search—1207
METR Time Horizons—71%
Vending-Bench 2—5,478

Reasoning Gemini 3 Pro leads

DeepSeek V4.1 Flash: 46.2 (#39), Gemini 3 Pro: 52.5 (#28)

Reasoning benchmarks
BenchmarkDeepSeek V4.1 FlashGemini 3 Pro
NYT Connections (extended)89.6%94.4%
CritPt14.3%6.9%
LMArena Hard Prompts14851481
Epoch Capabilities Index155.01152.96
ARC-AGI-2—31.1%
SimpleBench—76.4%
Kagi LLM Benchmark—80.1%
ARC-AGI-1—75%
Chess Puzzles—31%
EnigmaEval—18.2%
DTBench89.9%—
LMCA47%—
Surface Evolver Bench46.3%—
ForecastBench—61.2

Math Too close to call

DeepSeek V4.1 Flash: 48.4 (#52), Gemini 3 Pro: 48.8 (#50)

Math benchmarks
BenchmarkDeepSeek V4.1 FlashGemini 3 Pro
ProofBench54%20%
LMArena Math14931475
MathArena Final-Answer Competitions—67%
OTIS Mock AIME 2024-2025—91.4%
Omni-MATH—55.5%
FrontierMath (Feb 2025 set)—37.6%
FrontierMath Tier 4 (v1)—18.8%

Knowledge Gemini 3 Pro leads

DeepSeek V4.1 Flash: 41.6 (#97), Gemini 3 Pro: 64.3 (#15)

Knowledge benchmarks
BenchmarkDeepSeek V4.1 FlashGemini 3 Pro
LMArena Expert15051475
GPQA Diamond—92.6%
Humanity's Last Exam—37.5%
MMLU-Pro—90.3%
Vectara Hallucination Rate—13.6%
GPQA (HELM)—80.3%

Multimodal Not comparable

DeepSeek V4.1 Flash: —, Gemini 3 Pro: 56.9 (#1)

Multimodal benchmarks
BenchmarkDeepSeek V4.1 FlashGemini 3 Pro
LMArena Vision—1305
GeoBench—84%
VPCT—91%
LMArena Document—1434

Multilingual Gemini 3 Pro leads

DeepSeek V4.1 Flash: 55.5 (#29), Gemini 3 Pro: 57.1 (#14)

Multilingual benchmarks
BenchmarkDeepSeek V4.1 FlashGemini 3 Pro
LMArena Non-English14521474
LMArena Chinese15061522
LMArena French14481492
LMArena Russian14731493
LMArena Spanish14991468
LMArena German—1517
LMArena Japanese—1513
LMArena Korean—1449

Instruction Following DeepSeek V4.1 Flash leads

DeepSeek V4.1 Flash: 77.6 (#24), Gemini 3 Pro: 76.4 (#42)

Instruction Following benchmarks
BenchmarkDeepSeek V4.1 FlashGemini 3 Pro
LMArena Instruction Following14751458
IFEval—87.7%

Long Context DeepSeek V4.1 Flash leads

DeepSeek V4.1 Flash: 45.2 (#46), Gemini 3 Pro: 44.0 (#75)

Long Context benchmarks
BenchmarkDeepSeek V4.1 FlashGemini 3 Pro
LMArena Longer Query14761472
CL-bench—15.8%

Writing & Preference Too close to call

DeepSeek V4.1 Flash: 65.8 (#43), Gemini 3 Pro: 66.6 (#34)

Writing & Preference benchmarks
BenchmarkDeepSeek V4.1 FlashGemini 3 Pro
LMArena Text14651479
LMArena Creative Writing14361482
EQ-Bench Creative Writing15401525
LMArena Multi-Turn14601484
WildBench—85.9%

Frequently asked questions

Is DeepSeek V4.1 Flash better than Gemini 3 Pro?

Gemini 3 Pro is the stronger model overall, scoring 54.7 to 50.3 on the Noometry Index.

Is DeepSeek V4.1 Flash or Gemini 3 Pro better for coding?

They score almost the same on coding (52.8 vs 52.1); test both on your own repository before choosing.

How many benchmarks do DeepSeek V4.1 Flash and Gemini 3 Pro share?

21 benchmarks have published results for both models. DeepSeek V4.1 Flash has 25 scored results on Noometry and Gemini 3 Pro has 67.

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