Skip to content
SI.info

SI Model · Google DeepMind

Gemini 3.8 Flash

Published Verified 1 min read
On this page
  1. Key specs
  2. Why it’s popular
  3. Compare
Gemini 3.8 Flash specifications
Developer Google DeepMind
Released September 2, 2026
Status Current
Inputs Text, Images, Audio, Video
Context window 1M tokens
API price (input) $0.75 / 1M tokens
API price (output) $3.75 / 1M tokens
Open weights No
Access Gemini API, Vertex AI, Gemini app

Specs and list prices last verified October 7, 2026. Prices change often; check the provider before you buy.

Strengths

  • Low introductory price
  • About 1M-token multimodal context
  • Strong for long-horizon software engineering and agents

Best for

  • Cost-sensitive production apps
  • Multimodal document and video analysis
  • High-volume agent workflows

Gemini 3.8 Flash is Google’s workhorse model as of October 2026, and its newest stable release. Google describes it as “our most intelligent Flash model, engineered for long-horizon software engineering, autonomous agents, and complex enterprise workflows.”

Key specs

  • Context window: 1,048,576 tokens
  • Inputs: text, images, audio and video (multimodal)
  • Price: $0.75 per million input tokens and $3.75 per million output tokens, introductory pricing through December 31, 2026
  • Status: generally available (stable)

Flash models trade a little top-end capability for big savings in cost and speed. With a million-token multimodal context, 3.8 Flash can take in long videos, large codebases or hundreds of pages in one go, at a fraction of flagship prices.

Compare

Frequently asked questions

Will Gemini 3.8 Flash pricing go up?

Yes, probably. Google lists $0.75 per million input tokens and $3.75 per million output tokens as introductory pricing through December 31, 2026, and has announced pricing increases from January 1, 2027.

Sources

  1. Gemini API pricing — Google
  2. Gemini API models — Google

Written by

· Editor

Editor of SI.info. Writes about Super Intelligence, technology policy and the people building frontier models.

How we research and fact-check

Free newsletter

Get The SI Brief

One short email a week: what changed in Super Intelligence, policy and models — and why it matters.

Free. One email a week. Sent via beehiiv, which counts opens and clicks. Unsubscribe anytime. Privacy policy

Keep reading

Compare

Gemini 3.8 Flash vs Claude Sonnet 5.5

Specs, pricing and differences.

Compare

Gemini 3.8 Flash vs GPT-6 Luna

Specs, pricing and differences.

Model

Gemini 4 Argon

Gemini 4 Argon is Google's next-generation frontier SI model, announced September 30, 2026 and released first to trusted testers and cyber-defenders, with up to 1M output tokens.