How much does Gemini 3.5 Flash cost per token?

Gemini 3.5 Flash is priced at $0.75 per million input tokens and $4.50 per million output tokens, per OpenRouter as of Aug 9, 2026.

What is Gemini 3.5 Flash's context window?

Gemini 3.5 Flash supports a context window of up to 1M tokens, per Google.

How widely used is Gemini 3.5 Flash?

Gemini 3.5 Flash accounts for about 0.2% of tracked OpenRouter coding-token volume as of Aug 17, 2026.

What are the alternatives to Gemini 3.5 Flash?

By OpenRouter usage, comparable models include DeepSeek V4 Flash, Hy3, and Nemotron 3 Ultra. Side-by-side comparisons are linked in the alternatives table.

ModelsGoogle

Gemini 3.5 Flash

Name: Gemini 3.5 Flash
Author: Google

openrouter

Context

tokens

Released

May 19, 2026

on OpenRouter

Token share

0.2%

OpenRouter · Aug 17, 2026

Pricing

Price per million tokens

Input $/MTok

$0.7550%

OpenRouter · Aug 9, 2026

Output $/MTok

$4.5050%

OpenRouter · Aug 9, 2026

Cache read $/MTok

$0.075

OpenRouter

Current Gemini 3.5 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-3.5-flash:batch	$0.75	$4.50	$0.075	—	1M	Aug 9, 2026	50%
models.dev	opencode/gemini-3.5-flash-lite	$0.3	$2.50	$0.03	—	1M	Aug 9, 2026	80%
llm-prices.com	gemini-3.5-flash-lite	$0.3	$2.50	$0.03	—	—	Aug 8, 2026	80%

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 3.5 Flash specifications.
Provider	Google
Context window	1M tokens
Listed on OpenRouter	May 19, 2026
Tracked price sources	llm-prices.com · OpenRouter · models.dev
OpenRouter slugs	google/gemini-3.5-flash · google/gemini-3.5-flash-20260519

source: OpenRouter model catalog + tracked price feeds

id: gemini-3-5-flash

Usage

Share of OpenRouter tokens

90-day · to Aug 17, 2026

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

0.2% on Aug 17, 2026

Benchmarks

Benchmark results

Benchmark scores for Gemini 3.5 Flash.
Benchmark	Configuration	Score	Date	Source
AA Agentic Index	google/gemini-3.5-flash	37.4index	—	or-embedded-aa
AA Agentic Index	google/gemini-3.5-flash:batch	37.4index	—	or-embedded-aa
AA Coding Index	google/gemini-3.5-flash	70.1index	—	or-embedded-aa
AA Coding Index	google/gemini-3.5-flash:batch	70.1index	—	or-embedded-aa
AA Intelligence Index	google/gemini-3.5-flash	50.2index	—	or-embedded-aa
AA Intelligence Index	google/gemini-3.5-flash:batch	50.2index	—	or-embedded-aa

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

Alternatives

Similar models

Alternatives to Gemini 3.5 Flash by OpenRouter usage-rank proximity.
#	Model	Tokens/day	7d Δ	Head-to-head
1	DeepSeek V4 FlashDeepSeek	2.7T	23.9%	vs Gemini 3.5 Flash
2	Hy3Tencent	1.3T	17.8%	vs Gemini 3.5 Flash
5	Nemotron 3 UltraNVIDIA	733B	45.1%	vs Gemini 3.5 Flash
7	GLM 5.2Z.ai	533B	4.2%	vs Gemini 3.5 Flash

ranked by OpenRouter usage-rank proximity

snapshot Aug 20, 2026

FAQ

Gemini 3.5 Flash FAQ

How much does Gemini 3.5 Flash cost per token?: Gemini 3.5 Flash is priced at $0.75 per million input tokens and $4.50 per million output tokens, per OpenRouter as of Aug 9, 2026.
What is Gemini 3.5 Flash's context window?: Gemini 3.5 Flash supports a context window of up to 1M tokens, per Google.
How widely used is Gemini 3.5 Flash?: Gemini 3.5 Flash accounts for about 0.2% of tracked OpenRouter coding-token volume as of Aug 17, 2026.
What are the alternatives to Gemini 3.5 Flash?: By OpenRouter usage, comparable models include DeepSeek V4 Flash, Hy3, and Nemotron 3 Ultra. Side-by-side comparisons are linked in the alternatives table.

Alerts

Track Gemini 3.5 Flash

Email me when Gemini 3.5 Flash's price moves or it gets deprecated.