Is GPT-5.1-Codex-Max or GPT-4o Mini cheaper?

GPT-4o Mini is cheaper on output tokens ($0.60 vs $9.00 per 1M).

Which has the larger context window, GPT-5.1-Codex-Max or GPT-4o Mini?

GPT-5.1-Codex-Max has the larger context window (400K tokens).

GPT-5.1-Codex-Max vs GPT-4o Mini

GPT-4o Mini is cheaper on output tokens, while GPT-5.1-Codex-Max offers a larger context window. Choose GPT-5.1-Codex-Max or GPT-4o Mini based on the trade-off between cost, context, and the benchmarks that matter for your use case.

Spec	GPT-5.1-Codex-Max	GPT-4o Mini
Provider	Requesty	Requesty
Input / 1M tokens	$1.10	$0.15
Output / 1M tokens	$9.00	$0.60
Context window	400K	128K
Parameters	—	—
Open weights	No	No
Released	Nov 2025	Jul 2024

GPT-5.1-Codex-Max details →GPT-4o Mini details →

FAQ

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