Cyberax AI Playbook
cyberax.com
Model · Google · Text

Gemini 3.5 Flash-Lite

Google's fastest and most cost-effective Gemini tier — the high-throughput option for classification, extraction, and routing. Google's named replacement for Gemini 3.1 Flash-Lite.

Modality
Text
License
Proprietary (Proprietary)
Context window
Context window is not published on Google's models or pricing pages as of 2026-09-08.
Released
July 21, 2026
Last verified
September 8, 2026
Runs locally
No
Also handles
vision

Strengths

  • Fastest tier in the lineup — around 350 output tokens per second on the Artificial Analysis Index
  • Cheapest Gemini 3-series tier at $0.30 input / $2.50 output per MTok
  • Holds up on long-context tasks (72.2%) and agentic terminal work (54% on Terminal-Bench 2.1) despite the price

Weaknesses

  • The cheap tier — Google positions Gemini 3.6/3.7/3.8 Flash above it for coding and reasoning
  • Context window is not published by Google
  • Closed weights

Try it

WhereTypeNotes
Google AI Studio hosted-api Free tier
Vertex AI hosted-api GCP enterprise

Used in solutions

Version history

  1. Gemini 3.8 Flash Sep 2026
  2. Gemini 3.5 Flash-Lite Jul 2026 Current
  3. Gemini 3.5 Flash May 2026 Deprecated
  4. Gemini 3.1 Flash-Lite May 2026 Deprecated
  5. Gemini 3.1 Pro Preview May 2026

Change log

  • — Initial entry. Released 2026-07-21; named on Google's deprecations page as the replacement for Gemini 3.1 Flash-Lite (shutdown 2027-05-07). Context window left unset — Google publishes none.