Is Minimax M2.1 or gpt-5.1-codex cheaper?

Minimax M2.1 is cheaper on output tokens ($1.20 vs $9.00 per 1M).

Which has the larger context window, Minimax M2.1 or gpt-5.1-codex?

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

Minimax M2.1 vs gpt-5.1-codex

Minimax M2.1 is cheaper on output tokens, while gpt-5.1-codex offers a larger context window. Choose Minimax M2.1 or gpt-5.1-codex based on the trade-off between cost, context, and the benchmarks that matter for your use case.

Spec	Minimax M2.1	gpt-5.1-codex
Provider	Jiekou.AI	Jiekou.AI
Input / 1M tokens	$0.30	$1.13
Output / 1M tokens	$1.20	$9.00
Context window	205K	400K
Parameters	229B	—
Open weights	Yes	No
Released	Jan 2026	Jan 2026

Minimax M2.1 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.