Is GPT-5.1-Codex-Mini or MiniMax M2 cheaper?

MiniMax M2 is cheaper on output tokens ($1.20 vs $2.00 per 1M).

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

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

GPT-5.1-Codex-Mini vs MiniMax M2

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

Spec	GPT-5.1-Codex-Mini	MiniMax M2
Provider	ZenMux	ZenMux
Input / 1M tokens	$0.25	$0.30
Output / 1M tokens	$2.00	$1.20
Context window	400K	204K
Parameters	—	229B
Open weights	No	No
Released	Nov 2025	Oct 2025

GPT-5.1-Codex-Mini details →MiniMax M2 details →

FAQ

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