Is GPT-4o-mini or GPT-5.5-Pro cheaper?

GPT-4o-mini is cheaper on output tokens ($0.54 vs $163.64 per 1M).

Which has the larger context window, GPT-4o-mini or GPT-5.5-Pro?

GPT-5.5-Pro has the larger context window (400K tokens).

GPT-4o-mini vs GPT-5.5-Pro

GPT-4o-mini is cheaper on output tokens, while GPT-5.5-Pro offers a larger context window. Choose GPT-4o-mini or GPT-5.5-Pro based on the trade-off between cost, context, and the benchmarks that matter for your use case.

Spec	GPT-4o-mini	GPT-5.5-Pro
Provider	Poe	Poe
Input / 1M tokens	$0.14	$27.27
Output / 1M tokens	$0.54	$163.64
Context window	124K	400K
Parameters	—	—
Open weights	No	No
Released	Jul 2024	Apr 2026

GPT-4o-mini 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.