Is MiniMax M2 or GPT-5.1-Codex cheaper?

MiniMax M2 is cheaper on output tokens ($1.20 vs $10.00 per 1M).

Which has the larger context window, MiniMax M2 or GPT-5.1-Codex?

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

MiniMax M2 vs GPT-5.1-Codex

MiniMax M2 is cheaper on output tokens, while GPT-5.1-Codex offers a larger context window. Choose MiniMax M2 or GPT-5.1-Codex based on the trade-off between cost, context, and the benchmarks that matter for your use case.

Spec	MiniMax M2	GPT-5.1-Codex
Provider	ZenMux	ZenMux
Input / 1M tokens	$0.30	$1.25
Output / 1M tokens	$1.20	$10.00
Context window	204K	400K
Parameters	229B	—
Open weights	No	No
Released	Oct 2025	Nov 2025

MiniMax M2 details →GPT-5.1-Codex details →

FAQ

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