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

Gemini 3.1 Flash Lite Preview is cheaper on output tokens ($1.50 vs $30.00 per 1M).

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

GPT-5.5 has the larger context window (1.1M tokens).

GPT-5.5 vs Gemini 3.1 Flash Lite Preview

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

Spec	GPT-5.5	Gemini 3.1 Flash Lite Preview
Provider	Neon	Neon
Input / 1M tokens	$5.00	$0.25
Output / 1M tokens	$30.00	$1.50
Context window	1.1M	1M
Parameters	—	—
Open weights	No	No
Released	Apr 2026	Mar 2026

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

FAQ

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