Noometry

Model comparison

Gemini 3.8 Flash vs o1-pro

Gemini 3.8 Flash is the stronger model overall, scoring 61.8 to 31.5 on the Noometry Index.

Last verified . 2 shared benchmarks.

Gemini 3.8 Flash Google

61.8

Rank #11 Confirmed

o1-pro OpenAI

31.5

Rank #271 Reported

Summary

  • They share 2 benchmarks with published results for both. Gemini 3.8 Flash scores higher in 2 categories and o1-pro in 0 categories; 2 gaps are clear of the uncertainty.
  • The widest gap is in reasoning, where Gemini 3.8 Flash leads 76.9 to 20.4.
  • The biggest single-benchmark swing is ARC-AGI-1: 98.5% for Gemini 3.8 Flash and 23.3% for o1-pro.
  • Gemini 3.8 Flash is cheaper at $0.75 / $3.75 per million input/output tokens, against $150 / $600 for o1-pro.
  • Gemini 3.8 Flash accepts more context: 1.05M tokens versus 200K.

Side by side

Gemini 3.8 Flasho1-pro
ProviderGoogleOpenAI
Noometry Index61.831.5
Released2026-09-022025-03-19
WeightsProprietaryProprietary
Context window1.05M200K
Max output66K100K
Input $ / M tokens$0.75$150
Output $ / M tokens$3.75$600
Results tracked503

Sponsored placements are available on pages like this one. Advertise on Noometry

Category by category

Coding Not comparable

Gemini 3.8 Flash: 59.2 (#15), o1-pro: —

BenchmarkGemini 3.8 Flasho1-pro
DeepSWE73.8%—
FrontierCode41.2%—
CursorBench39.6%—
LMArena WebDev1584—
FrontierSWE19.6%—
SciCode56.6%—
WeirdML84.8%—
LMArena Coding1510—
ALE-Bench1,270—

Agentic & Tool Use Not comparable

Gemini 3.8 Flash: 41.8 (#21), o1-pro: —

BenchmarkGemini 3.8 Flasho1-pro
APEX-Agents64.3%—
Remote Labor Index5.8%—
GDP.pdf23.4%—
Vending-Bench 25,094—

Reasoning Gemini 3.8 Flash leads

Gemini 3.8 Flash: 76.9 (#5), o1-pro: 20.4 (#239)

BenchmarkGemini 3.8 Flasho1-pro
ARC-AGI-198.5%23.3%
ARC-AGI-289.2%—
NYT Connections (extended)97.4%—
CritPt18.3%—
Chess Puzzles61%—
EnigmaEval—6.1%
LMArena Hard Prompts1508—
Mystery Game Puzzles47%—
DTBench95.7%—
LMCA52.9%—
Surface Evolver Bench76.9%—
Epoch Capabilities Index156.71—

Math Not comparable

Gemini 3.8 Flash: 65.3 (#28), o1-pro: —

BenchmarkGemini 3.8 Flasho1-pro
FrontierMath (Tiers 1-3)68.4%—
FrontierMath Tier 422%—
OTIS Mock AIME 2024-202598.9%—
ProofBench48%—
LMArena Math1528—

Knowledge Gemini 3.8 Flash leads

Gemini 3.8 Flash: 74.8 (#2), o1-pro: 29.7 (#234)

BenchmarkGemini 3.8 Flasho1-pro
Humanity's Last Exam44.5%8.1%
GPQA Diamond95.4%—
SimpleQA Verified69.7%—
LMArena Expert1524—

Multimodal Not comparable

Gemini 3.8 Flash: 40.7 (#45), o1-pro: —

BenchmarkGemini 3.8 Flasho1-pro
LMArena Vision1314—
Blueprint-Bench 238.6%—
Furniture Assembly31.7%—

Multilingual Not comparable

Gemini 3.8 Flash: 58.0 (#5), o1-pro: —

BenchmarkGemini 3.8 Flasho1-pro
LMArena Non-English1491—
LMArena Chinese1554—
LMArena French1498—
LMArena German1493—
LMArena Japanese1502—
LMArena Korean1459—
LMArena Russian1515—
LMArena Spanish1485—

Instruction Following Not comparable

Gemini 3.8 Flash: 78.0 (#13), o1-pro: —

BenchmarkGemini 3.8 Flasho1-pro
LMArena Instruction Following1490—

Long Context Not comparable

Gemini 3.8 Flash: 46.3 (#24), o1-pro: —

BenchmarkGemini 3.8 Flasho1-pro
LMArena Longer Query1508—

Writing & Preference Not comparable

Gemini 3.8 Flash: 72.2 (#15), o1-pro: —

BenchmarkGemini 3.8 Flasho1-pro
LMArena Text1499—
LMArena Creative Writing1492—
EQ-Bench Creative Writing1748—
LMArena Multi-Turn1501—

Frequently asked questions

Is Gemini 3.8 Flash better than o1-pro?

Gemini 3.8 Flash is the stronger model overall, scoring 61.8 to 31.5 on the Noometry Index.

Which is cheaper, Gemini 3.8 Flash or o1-pro?

Gemini 3.8 Flash is cheaper. It lists at $0.75 per million input tokens and $3.75 per million output tokens; o1-pro lists at $150 and $600.

Which has the bigger context window?

Gemini 3.8 Flash does, with 1.05M tokens against 200K.

How many benchmarks do Gemini 3.8 Flash and o1-pro share?

2 benchmarks have published results for both models. Gemini 3.8 Flash has 50 scored results on Noometry and o1-pro has 3.

Related comparisons

Go deeper