Is GLM-4.5 or gpt-5.1-codex-max cheaper?

GLM-4.5 is cheaper on output tokens ($2.20 vs $9.00 per 1M).

Which has the larger context window, GLM-4.5 or gpt-5.1-codex-max?

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

GLM-4.5 vs gpt-5.1-codex-max

GLM-4.5 is cheaper on output tokens, while gpt-5.1-codex-max offers a larger context window. Choose GLM-4.5 or gpt-5.1-codex-max based on the trade-off between cost, context, and the benchmarks that matter for your use case.

Spec	GLM-4.5	gpt-5.1-codex-max
Provider	Jiekou.AI	Jiekou.AI
Input / 1M tokens	$0.60	$1.13
Output / 1M tokens	$2.20	$9.00
Context window	131K	400K
Parameters	355B	—
Open weights	Yes	No
Released	Jan 2026	Jan 2026

GLM-4.5 details →gpt-5.1-codex-max details →

FAQ

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