Is GPT-5.4 Nano or GPT-5.2-Pro cheaper?

GPT-5.4 Nano is cheaper on output tokens ($1.25 vs $168.00 per 1M).

Which has the larger context window, GPT-5.4 Nano or GPT-5.2-Pro?

Both models offer a similar context window.

GPT-5.4 Nano vs GPT-5.2-Pro

GPT-5.4 Nano is cheaper on output tokens. Choose GPT-5.4 Nano or GPT-5.2-Pro based on the trade-off between cost, context, and the benchmarks that matter for your use case.

Spec	GPT-5.4 Nano	GPT-5.2-Pro
Provider	ZenMux	ZenMux
Input / 1M tokens	$0.20	$21.00
Output / 1M tokens	$1.25	$168.00
Context window	400K	400K
Parameters	—	—
Open weights	No	No
Released	Mar 2026	Dec 2025

GPT-5.4 Nano details →GPT-5.2-Pro details →

FAQ

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