Is gpt-5.1-codex-max or o3-mini cheaper?

o3-mini is cheaper on output tokens ($4.40 vs $9.00 per 1M).

Which has the larger context window, gpt-5.1-codex-max or o3-mini?

gpt-5.1-codex-max has the larger context window (400K tokens).

gpt-5.1-codex-max vs o3-mini

o3-mini is cheaper on output tokens, while gpt-5.1-codex-max offers a larger context window. Choose gpt-5.1-codex-max or o3-mini based on the trade-off between cost, context, and the benchmarks that matter for your use case.

Spec	gpt-5.1-codex-max	o3-mini
Provider	Jiekou.AI	Jiekou.AI
Input / 1M tokens	$1.13	$1.10
Output / 1M tokens	$9.00	$4.40
Context window	400K	131K
Parameters	—	—
Open weights	No	No
Released	Jan 2026	Jan 2026

gpt-5.1-codex-max details →o3-mini details →

FAQ

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