Is GPT-3.5-Turbo or GPT-5.5-Pro cheaper?

GPT-3.5-Turbo is cheaper on output tokens ($1.40 vs $163.64 per 1M).

Which has the larger context window, GPT-3.5-Turbo or GPT-5.5-Pro?

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

GPT-3.5-Turbo vs GPT-5.5-Pro

GPT-3.5-Turbo is cheaper on output tokens, while GPT-5.5-Pro offers a larger context window. Choose GPT-3.5-Turbo or GPT-5.5-Pro based on the trade-off between cost, context, and the benchmarks that matter for your use case.

Spec	GPT-3.5-Turbo	GPT-5.5-Pro
Provider	Poe	Poe
Input / 1M tokens	$0.45	$27.27
Output / 1M tokens	$1.40	$163.64
Context window	16K	400K
Parameters	20B	—
Open weights	No	No
Released	Sep 2023	Apr 2026

GPT-3.5-Turbo 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.