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Gemini 2.5 Flash Preview (09/2025)

gemini-2.5-flash-preview-09-2025
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Gemini 2.5 Flash Preview (09/2025)

gemini-2.5-flash-preview-09-2025

State-of-the-art Gemini 2.5 Flash checkpoint tuned for advanced reasoning, coding, math, and scientific tasks. Built-in thinking for higher accuracy and nuanced context handling. Routed to Gemini 2.5 Flash (stable).

Added Sep 25, 2025

Context Window

1.0M

Max Output

65.5K

Input Price (Auto)

$0.30/1M

Output Price (Auto)

$2.50/1M

Cache Read (Auto)

$0.030/1M

Capabilities

Benchmarks

Performance metrics and benchmarks

Sourced from Artificial Analysis.

Intelligence Index

19.1

Better than 52% of models compared

Reasoning

GPQA Diamond

Graduate-level scientific reasoning

76.6%

Better than 63% of models compared

HLE

Humanity's Last Exam

8.7%

Better than 53% of models compared

IFBench

Instruction-following benchmark

43.5%

Better than 48% of models compared

T²-Bench Telecom

Conversational AI agents in dual-control scenarios

28.4%

Better than 35% of models compared

AA-LCR

Long context reasoning evaluation

59.0%

Better than 61% of models compared

Coding

SciCode

Python programming for scientific computing

37.5%

Better than 61% of models compared

Terminal-Bench Hard

Agentic coding and terminal use

14.4%

Better than 51% of models compared

LiveCodeBench

Contamination-free coding benchmark

62.5%

Better than 68% of models compared

Math

AIME 2025

American Invitational Mathematics Examination 2025

56.7%

Better than 54% of models compared

Knowledge

MMLU-Pro

Professional and academic subject knowledge

83.6%

Better than 85% of models compared

Last updated Aug 16, 2026

Artificial Analysis

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