Model comparison

Gemini 3.1 Pro Preview vs GPT-5.4

GPT-5.4 is the stronger model overall, scoring 59.4 to 56.7 on the Noometry Index.

Last verified . 67 shared benchmarks.

Gemini 3.1 Pro Preview Google

56.7

Rank #23 Confirmed

GPT-5.4 OpenAI

59.4

Rank #16 Confirmed

Summary

  • They share 67 benchmarks with published results for both. Gemini 3.1 Pro Preview scores higher in 3 categories and GPT-5.4 in 7 categories; 8 gaps are clear of the uncertainty.
  • The widest gap is in math, where GPT-5.4 leads 73.5 to 62.1.
  • The biggest single-benchmark swing is GBAEval: 0.8% for Gemini 3.1 Pro Preview and 45.1% for GPT-5.4.
  • Gemini 3.1 Pro Preview is cheaper at $2 / $12 per million input/output tokens, against $2.50 / $15 for GPT-5.4.
  • GPT-5.4 accepts more context: 1.05M tokens versus 1.05M.

Side by side

Gemini 3.1 Pro Preview and GPT-5.4 specifications
Gemini 3.1 Pro PreviewGPT-5.4
ProviderGoogleOpenAI
Noometry Index56.759.4
Released2026-02-192026-03-05
WeightsProprietaryProprietary
Context window1.05M1.05M
Max output66K128K
Input $ / M tokens$2$2.50
Output $ / M tokens$12$15
Results tracked7168

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Category by category

Coding GPT-5.4 leads

Gemini 3.1 Pro Preview: 42.5 (#99), GPT-5.4: 52.6 (#33)

Coding benchmarks
BenchmarkGemini 3.1 Pro PreviewGPT-5.4
SWE-bench Verified75.6%76.9%
DeepSWE11.7%51.8%
LMArena WebDev14471465
SciCode58.9%56.6%
GSO22.6%31.4%
WeirdML72.1%77.7%
LMArena Coding14841497
MirrorCode8.9%15.6%
ALE-Bench1,1611,607
AlgoTune2.021.85

Agentic & Tool Use GPT-5.4 leads

Gemini 3.1 Pro Preview: 37.7 (#34), GPT-5.4: 46.5 (#13)

Agentic & Tool Use benchmarks
BenchmarkGemini 3.1 Pro PreviewGPT-5.4
Terminal-Bench80.2%81.8%
APEX-Agents35.3%52.4%
τ²-bench Banking26%39.4%
DeepResearch Bench47.8%35.1%
PostTrainBench22%19%
GBAEval0.8%45.1%
LMArena Search12111197
METR Time Horizons77%74.3%
Vending-Bench 23,7746,144
BALROG57%—
ExploitBench26.1%—
GDP.pdf17%—

Reasoning Gemini 3.1 Pro Preview leads

Gemini 3.1 Pro Preview: 71.7 (#12), GPT-5.4: 61.8 (#19)

Reasoning benchmarks
BenchmarkGemini 3.1 Pro PreviewGPT-5.4
ARC-AGI-277.1%74%
NYT Connections (extended)97.4%91.3%
ARC-AGI-198%93.7%
CritPt17.7%23.4%
Chess Puzzles55%44%
EnigmaEval36.8%16%
Thematic Generalization79.4%80%
EBR-Bench14.3%25.4%
LMArena Hard Prompts14851485
Mystery Game Puzzles34%37%
DTBench97.1%94.4%
LMCA53.8%52%
Epoch Capabilities Index154.77156.81
ForecastBench5959.5
SimpleBench79.6%—
Kagi LLM Benchmark—63.8%

Math GPT-5.4 leads

Gemini 3.1 Pro Preview: 62.1 (#34), GPT-5.4: 73.5 (#19)

Math benchmarks
BenchmarkGemini 3.1 Pro PreviewGPT-5.4
FrontierMath (Tiers 1-3)59.6%78.6%
FrontierMath Tier 426.8%49%
MathArena Final-Answer Competitions86.5%83.1%
OTIS Mock AIME 2024-202595.6%97.8%
ProofBench26%56%
LMArena Math14851488
FrontierMath (Feb 2025 set)36.9%47.6%
FrontierMath Tier 4 (v1)16.7%27.1%

Knowledge Gemini 3.1 Pro Preview leads

Gemini 3.1 Pro Preview: 71.8 (#3), GPT-5.4: 65.3 (#14)

Knowledge benchmarks
BenchmarkGemini 3.1 Pro PreviewGPT-5.4
GPQA Diamond94.4%93.3%
Humanity's Last Exam46.4%36.2%
SimpleQA Verified73.5%45.1%
Vectara Hallucination Rate10.4%7%
LMArena Expert14851507

Multimodal GPT-5.4 leads

Gemini 3.1 Pro Preview: 37.9 (#69), GPT-5.4: 43.7 (#20)

Multimodal benchmarks
BenchmarkGemini 3.1 Pro PreviewGPT-5.4
LMArena Vision12961303
Blueprint-Bench 226.5%27.1%
Furniture Assembly26.7%37.5%
LMArena Document14441471

Multilingual Too close to call

Gemini 3.1 Pro Preview: 57.0 (#12), GPT-5.4: 56.2 (#23)

Multilingual benchmarks
BenchmarkGemini 3.1 Pro PreviewGPT-5.4
LMArena Non-English14771465
LMArena Chinese15291519
LMArena French14871493
LMArena German14911472
LMArena Japanese14931485
LMArena Korean14551448
LMArena Russian14981480
LMArena Spanish14791454

Instruction Following Too close to call

Gemini 3.1 Pro Preview: 77.0 (#32), GPT-5.4: 77.1 (#27)

Instruction Following benchmarks
BenchmarkGemini 3.1 Pro PreviewGPT-5.4
LMArena Instruction Following14661469

Long Context GPT-5.4 leads

Gemini 3.1 Pro Preview: 47.4 (#18), GPT-5.4: 50.3 (#8)

Long Context benchmarks
BenchmarkGemini 3.1 Pro PreviewGPT-5.4
CL-bench20.8%27.9%
CL-bench Life16.9%21.7%
LMArena Longer Query14831473

Writing & Preference GPT-5.4 leads

Gemini 3.1 Pro Preview: 66.1 (#37), GPT-5.4: 71.9 (#17)

Writing & Preference benchmarks
BenchmarkGemini 3.1 Pro PreviewGPT-5.4
LMArena Text14811469
LMArena Creative Writing14821439
EQ-Bench Creative Writing14911840
EQ-Bench 411421272
LMArena Multi-Turn14881482

Frequently asked questions

Is Gemini 3.1 Pro Preview better than GPT-5.4?

GPT-5.4 is the stronger model overall, scoring 59.4 to 56.7 on the Noometry Index.

Which is cheaper, Gemini 3.1 Pro Preview or GPT-5.4?

Gemini 3.1 Pro Preview is cheaper. It lists at $2 per million input tokens and $12 per million output tokens; GPT-5.4 lists at $2.50 and $15.

Is Gemini 3.1 Pro Preview or GPT-5.4 better for coding?

GPT-5.4 scores higher on coding benchmarks: 52.6 versus 42.5 in the Noometry coding category.

Which has the bigger context window?

GPT-5.4 does, with 1.05M tokens against 1.05M.

How many benchmarks do Gemini 3.1 Pro Preview and GPT-5.4 share?

67 benchmarks have published results for both models. Gemini 3.1 Pro Preview has 71 scored results on Noometry and GPT-5.4 has 68.

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