Gemini 2.5 Flash Preview (Sep '25) (Reasoning)

Google

ReasoningVision ModelProprietary

Analysis of Google's Gemini 2.5 Flash Preview (Sep '25) (Reasoning) and comparison to other AI models across key metrics including quality, price, performance (tokens per second & time to first token), context window & more.

Context

Release Date: Sep 25, 2025
Window: 1M

PricingPer 1M tokens

Input: $
Output: $
Blended 3:1: $

Capabilities

Input
Output
Reasoning tokens

Benchmarks

Reasoning: ●●○○○
Math: ●●●●○
Coding: ●○○○○
MMLU Pro: 84.2%
GPQA: 79.3%
HLE: 12.7%
SciCode: 40.5%
AIME: 78.3%
LiveCodeBench: 71.3%

Analysis of Google's Gemini 2.5 Flash Preview (Sep '25) (Reasoning) and comparison to other AI models across key metrics including quality, price, performance (tokens per second & time to first token), context window & more.