Gemini 3.1 Flash-Lite vs Gemini 3.5 Flash

Google's Gemini 3.1 Flash-Lite against Google's Gemini 3.5 Flash — price, context and what each is best at. Both are available through one OpenAI-compatible API.

AnyModel — you pay	Gemini 3.1 Flash-Lite	Gemini 3.5 Flash
Vendor	Google	Google
Input / 1M	$0.03	$0.03
Output / 1M	$0.03	$0.03
Context	1M	1M
Best for	High volume	Agents

Gemini 3.1 Flash-Lite

The fastest, cheapest Gemini of the 3rd series.

Gemini 3.1 Flash-Lite delivers frontier-class quality at a fraction of the cost — Google's budget tier of the 3.x line, beating the older 2.5 Flash on benchmarks while costing less.

More about Gemini 3.1 Flash-Lite →

Gemini 3.5 Flash

Google's newest default — frontier smarts at a Flash price.

Gemini 3.5 Flash is Google's freshest GA model: it beats Gemini 3.1 Pro on agentic and coding benchmarks while running about 4× faster, with selectable thinking levels and a 1M-token window — the new default pick of the Gemini line.

More about Gemini 3.5 Flash →

Quick take: Gemini 3.1 Flash-Lite and Gemini 3.5 Flash cost the same on output tokens ($0.03 per 1M). Compare their strengths and context for your task; you can switch the model id at any time.

FAQ

Which is cheaper, Gemini 3.1 Flash-Lite or Gemini 3.5 Flash?

Gemini 3.1 Flash-Lite and Gemini 3.5 Flash cost the same on output tokens ($0.03 per 1M).

Which has a larger context window, Gemini 3.1 Flash-Lite or Gemini 3.5 Flash?

Gemini 3.1 Flash-Lite: 1M; Gemini 3.5 Flash: 1M.