How much does Gemini 2.5 Flash cost per token?

Gemini 2.5 Flash is priced at $0.3 per million input tokens and $2.50 per million output tokens, per OpenRouter as of Jul 28, 2026.

What is Gemini 2.5 Flash's context window?

Gemini 2.5 Flash supports a context window of up to 1M tokens, per Google.

How widely used is Gemini 2.5 Flash?

Gemini 2.5 Flash accounts for about 0.6% of tracked OpenRouter coding-token volume as of Aug 20, 2026.

What are the alternatives to Gemini 2.5 Flash?

By OpenRouter usage, comparable models include Step 3.7 Flash, Gemma 4 31B, and Gemini 3.1 Flash Lite. Side-by-side comparisons are linked in the alternatives table.

ModelsGoogle

Gemini 2.5 Flash

Name: Gemini 2.5 Flash
Author: Google

openrouter

Context

tokens

Released

Jun 17, 2025

on OpenRouter

Usage rank

#15

of 28 tracked models

Token share

0.6%

OpenRouter · Aug 20, 2026

Pricing

Price per million tokens

Input $/MTok

$0.3

OpenRouter · Jul 28, 2026

Output $/MTok

$2.50

OpenRouter · Jul 28, 2026

Cache read $/MTok

$0.03

OpenRouter

Cache write $/MTok

$0.083

OpenRouter

Current Gemini 2.5 Flash prices per million tokens across tracked sources.
Source	Tracked slug	In $/MTok	Out $/MTok	Cache read	Cache write	Context	Effective	Last Δ (in)
OpenRouter	google/gemini-2.5-flash	$0.3	$2.50	$0.03	$0.083	1M	Jul 28, 2026	—
models.dev	orcarouter/google/gemini-2.5-flash	$0.3	$2.50	$0.03	—	1M	Jul 28, 2026	233.3%
llm-prices.com	gemini-2.5-flash-preview-09-2025	$0.3	$2.50	$0.03	—	—	Jul 27, 2026	—

latest tracked price per source · Δ = most recent input-price move within that source

3 sources tracking

Input $/MTok

Output $/MTok

per-source step lines · $/MTok

history since Jan 1, 2023

Specs

Context & availability

Gemini 2.5 Flash specifications.
Provider	Google
Context window	1M tokens
Listed on OpenRouter	Jun 17, 2025
Tracked price sources	llm-prices.com · OpenRouter · models.dev
OpenRouter slugs	google/gemini-2.5-flash

source: OpenRouter model catalog + tracked price feeds

id: gemini-2-5-flash

Usage

Share of OpenRouter tokens

90-day · to Aug 20, 2026

source: OpenRouter model rankings · share of tracked coding-token volume

0.6% on Aug 20, 2026

Benchmarks

Benchmark results

Benchmark scores for Gemini 2.5 Flash.
Benchmark	Configuration	Score	Date	Source
Aider Polyglot	gemini-2.5-flash-preview-05-20 (no think)	44%	May 26, 2025	aider-repo
Aider Polyglot	gemini-2.5-flash-preview-05-20 (24k think)	55.1%	May 25, 2025	aider-repo
Aider Polyglot	gemini-2.5-flash-preview-04-17 (default)	47.1%	Apr 20, 2025	aider-repo

scores as published by each benchmark; configurations differ — compare within a row's benchmark only

Similar models

Alternatives to Gemini 2.5 Flash by OpenRouter usage-rank proximity.
#	Model	Tokens/day	7d Δ	Head-to-head
31	Step 3.7 FlashStepFun	69B	37.8%	vs Gemini 2.5 Flash
28	Gemma 4 31BGoogle	84.3B	70.5%	vs Gemini 2.5 Flash
32	Gemini 3.1 Flash LiteGoogle	65.8B	51.6%	vs Gemini 2.5 Flash
26	gpt-oss-120bOpenAI	85.5B	69.2%	vs Gemini 2.5 Flash

ranked by OpenRouter usage-rank proximity

snapshot Aug 20, 2026

FAQ

Gemini 2.5 Flash FAQ

How much does Gemini 2.5 Flash cost per token?: Gemini 2.5 Flash is priced at $0.3 per million input tokens and $2.50 per million output tokens, per OpenRouter as of Jul 28, 2026.
What is Gemini 2.5 Flash's context window?: Gemini 2.5 Flash supports a context window of up to 1M tokens, per Google.
How widely used is Gemini 2.5 Flash?: Gemini 2.5 Flash accounts for about 0.6% of tracked OpenRouter coding-token volume as of Aug 20, 2026.
What are the alternatives to Gemini 2.5 Flash?: By OpenRouter usage, comparable models include Step 3.7 Flash, Gemma 4 31B, and Gemini 3.1 Flash Lite. Side-by-side comparisons are linked in the alternatives table.

Alerts

Track Gemini 2.5 Flash

Email me when Gemini 2.5 Flash's price moves or it gets deprecated.