Is Gemini 3.7 Flash or GPT-5.5 Pro cheaper?

Gemini 3.7 Flash is cheaper on output tokens ($3.75 vs $180.00 per 1M).

Which has the larger context window, Gemini 3.7 Flash or GPT-5.5 Pro?

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

Gemini 3.7 Flash vs GPT-5.5 Pro

Gemini 3.7 Flash is cheaper on output tokens, while GPT-5.5 Pro offers a larger context window. Choose Gemini 3.7 Flash or GPT-5.5 Pro based on the trade-off between cost, context, and the benchmarks that matter for your use case.

Spec	Gemini 3.7 Flash	GPT-5.5 Pro
Provider	Opper	Opper
Input / 1M tokens	$0.75	$30.00
Output / 1M tokens	$3.75	$180.00
Context window	1M	1.1M
Parameters	—	—
Open weights	No	No
Released	Aug 2026	Apr 2026

Gemini 3.7 Flash 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.