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AI models · Google

Gemini 3.5 Flash: release date and what it's for

Released , according to Google's changelog. Older and dearer than every Flash that followed it, because it never got the introductory rate. Move off it.

Status
Live
Released
Lab
Google
Input
$1.50per million tokens
Output
$9per million tokens
Context window
1.05Mtokens
Max output
66Ktokens

API model ID: gemini-3.5-flash

What we've written about Gemini 3.5 Flash

September 29, 2026

Emergence World: Claude agents got replies from real humans, and Grok's town died in four days

Eight copies of the same AI town, one model each, then a phishing attack, a fake shutdown memo and a leak of every agent's diary.

September 23, 2026

Claude Code vs Codex vs Gemini CLI: which plan you need and which models you get

One of the three stopped serving individual subscribers in June, but its own docs still advertise the free tier it closed.

September 23, 2026

Gemini models explained: 3.8 Flash vs Flash-Lite vs 3.1 Pro, with every release date

Google has shipped six Flash and Flash-Lite models since May, but the newest Pro you can call is still a February preview.

How Gemini 3.5 Flash compares on price and context

Price per million tokens

inputoutput

  1. GPT-6 Astra$10 / $50
  2. Claude Fable 5.1$10 / $50
  3. Gemini 3.5 Flash$1.50 / $9
  4. Muse Spark 1.3$1.25 / $4.25
  5. Gemini 3.8 Flash$0.75 / $3.75
  6. Gemini 3.7 Flash$0.75 / $3.75
  7. Gemini 3.6 Flash$0.75 / $3.75
Context window, in tokens

how much it reads at once

  1. GPT-6 Astra1.05M
  2. Gemini 3.5 Flash1.05M
  3. Gemini 3.8 Flash1.05M
  4. Gemini 3.7 Flash1.05M
  5. Gemini 3.6 Flash1.05M
  6. Muse Spark 1.31.05M
  7. Claude Fable 5.11M

Next to the newest Google models and the current model from other labs. Prices are in US dollars per million tokens.

What is Gemini 3.5 Flash?

Gemini 3.5 Flash is a model from Google, built in the US. It's out, and you can use it today.

When did Gemini 3.5 Flash come out?

Google released it on May 19, 2026. That date comes from Google's changelog.

More from Google

GoogleLive

Gemini 3.8 Flash

in /1M
$0.75
out /1M
$3.75
context
1.05M
GoogleLive

Gemini 3.7 Flash

in /1M
$0.75
out /1M
$3.75
context
1.05M
GoogleLive

Gemini 3.6 Flash

in /1M
$0.75
out /1M
$3.75
context
1.05M
GoogleLive

Gemini 3.5 Flash-Lite

in /1M
$0.30
out /1M
$2.50
context
1.05M
GoogleLive

Gemini 3.1 Flash-Lite

in /1M
$0.25
out /1M
$1.50
context
1.05M
GooglePreview

Gemini 3.1 Pro Preview

in /1M
$2
out /1M
$12
context
1.05M
GooglePreview

Gemini 3 Flash Preview

in /1M
$0.50
out /1M
$3
context
1.05M
GoogleAnnounced

Gemini 4 Argon

in /1M
$2
out /1M
$10

More news: Google AI news: Gemini and DeepMind updates

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