Gemini 3.5 is a generation of Google's Gemini models: 3.5 Flash-Lite, the now-deprecated 3.5 Flash, and speech models for transcription and live translation.
In plain words
Google releases Gemini in numbered generations. In the 3.5 generation, Flash-Lite is the cheapest and quickest, suited to high-volume jobs like pulling data out of documents, and it accepts text, images, video, audio and PDFs as input. Google has deprecated 3.5 Flash: requests to it now go to 3.6 Flash automatically. For new projects, Google now points to 3.5 Flash-Lite or Gemini 4 Hydrogen.
A quick example
Imagine an app that has to read thousands of invoices a day and pull out totals. A developer would pick a fast, low-cost model like 3.5 Flash-Lite, because speed and price matter more there than deep reasoning.
Where you'll meet it
- Apps built on the Gemini API.
- High-volume jobs such as document parsing and data extraction.
Related
Sources
- DocsModels, Gemini API docs (Google) · read 12 Nov 2026
- DocsGemini 3.5 Flash, Gemini API docs (Google) · read 2 Nov 2026
- DocsGemini 3.5 Flash-Lite, Gemini API docs (Google) · read 2 Nov 2026
Checked by WhatIsAI against the sources above · 12 Nov 2026. Spotted an error? Report it.