Is GPT-5 nano or GPT-5.1 Codex Max cheaper?

GPT-5 nano is cheaper on output tokens ($0.40 vs $10.00 per 1M).

Which has the larger context window, GPT-5 nano or GPT-5.1 Codex Max?

Both models offer a similar context window.

GPT-5 nano vs GPT-5.1 Codex Max

GPT-5 nano is cheaper on output tokens. Choose GPT-5 nano or GPT-5.1 Codex Max based on the trade-off between cost, context, and the benchmarks that matter for your use case.

Spec	GPT-5 nano	GPT-5.1 Codex Max
Provider	DigitalOcean	DigitalOcean
Input / 1M tokens	$0.05	$1.25
Output / 1M tokens	$0.40	$10.00
Context window	400K	400K
Parameters	—	—
Open weights	No	No
Released	Aug 2025	Nov 2025

GPT-5 nano details →GPT-5.1 Codex Max details →

FAQ

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