LIVE INTELLIGENCE · part of the Xentir AI Index

Gemini 2.0 Flash Thinking Exp vs o1-preview

Gemini 2.0 Flash Thinking Exp · Google DeepMind,Google, released 2025-01-21
o1-preview · OpenAI, released 2024-09-12

“Epoch AI, 'AI Benchmarking Hub'. Published online at epoch.ai. Retrieved from 'https://epoch.ai/benchmarks' [online resource].” · epoch.ai/benchmarks · Licensed CC BY 4.0 · data last verified 2026-07-26 · Methodology · Data Sources

Head-to-head

Measured on 3 of 9 tracked benchmarks for both models — Gemini 2.0 Flash Thinking Exp leads on 3.

Benchmark	Gemini 2.0 Flash Thinking Exp	o1-preview	Leads
Epoch Capabilities Index (ECI)	136.2	135.8	Gemini 2.0 Flash Thinking Exp
SWE-bench Verified	Not measured	Not measured	Not measured on both
GPQA Diamond	0.571	0.503	Gemini 2.0 Flash Thinking Exp
MATH Level 5	Not measured	0.816	Not measured on both
OTIS Mock AIME 2024-2025	0.578	0.311	Gemini 2.0 Flash Thinking Exp
FrontierMath	Not measured	Not measured	Not measured on both
FrontierMath Tier 4	Not measured	Not measured	Not measured on both
SimpleQA Verified	Not measured	Not measured	Not measured on both
Chess Puzzles	Not measured	Not measured	Not measured on both

Benchmark results measure specific tasks and should not be treated as a universal measure of model quality. A model with no row here for a benchmark has not been measured on it — that is left blank, never estimated.

Full profiles

Gemini 2.0 Flash Thinking Exp → · o1-preview → · the full AI Model Rankings table