Is Gemini-3.1-Flash-Lite or GPT-5.5-Pro cheaper?

Gemini-3.1-Flash-Lite is cheaper on output tokens ($1.50 vs $163.64 per 1M).

Which has the larger context window, Gemini-3.1-Flash-Lite or GPT-5.5-Pro?

Gemini-3.1-Flash-Lite has the larger context window (1M tokens).

Gemini-3.1-Flash-Lite vs GPT-5.5-Pro

Gemini-3.1-Flash-Lite is cheaper on output tokens, while Gemini-3.1-Flash-Lite offers a larger context window. Choose Gemini-3.1-Flash-Lite or GPT-5.5-Pro based on the trade-off between cost, context, and the benchmarks that matter for your use case.

Spec	Gemini-3.1-Flash-Lite	GPT-5.5-Pro
Provider	Poe	Poe
Input / 1M tokens	$0.25	$27.27
Output / 1M tokens	$1.50	$163.64
Context window	1M	400K
Parameters	—	—
Open weights	No	No
Released	Feb 2026	Apr 2026

Gemini-3.1-Flash-Lite details →GPT-5.5-Pro details →

FAQ

Pricing is indicative — confirm with the provider before production use. Highlighted values indicate the better figure for that row.