LIVE INTELLIGENCE · part of the Xentir AI Index

Gemini 2.5 Pro (Jun 2025) vs Gemini 2.5 Pro Preview (Jun 2025)

Gemini 2.5 Pro (Jun 2025) · Google DeepMind, released 2025-06-17
Gemini 2.5 Pro Preview (Jun 2025) · Google DeepMind, released 2025-06-05

“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 4 of 9 tracked benchmarks for both models — Gemini 2.5 Pro (Jun 2025) leads on 3, tied on 1.

Benchmark	Gemini 2.5 Pro (Jun 2025)	Gemini 2.5 Pro Preview (Jun 2025)	Leads
Epoch Capabilities Index (ECI)	146.1	146.1	Tied
SWE-bench Verified	0.576	Not measured	Not measured on both
GPQA Diamond	0.853	0.848	Gemini 2.5 Pro (Jun 2025)
MATH Level 5	Not measured	Not measured	Not measured on both
OTIS Mock AIME 2024-2025	0.842	Not measured	Not measured on both
FrontierMath	0.141	0.103	Gemini 2.5 Pro (Jun 2025)
FrontierMath Tier 4	0.042	0.021	Gemini 2.5 Pro (Jun 2025)
SimpleQA Verified	0.560	Not measured	Not measured on both
Chess Puzzles	0.200	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 2.5 Pro (Jun 2025) → · Gemini 2.5 Pro Preview (Jun 2025) → · the full AI Model Rankings table