Is GLM-5.2 or GPT-5.3 Codex cheaper?

GLM-5.2 is cheaper on output tokens ($3.00 vs $14.00 per 1M).

Which has the larger context window, GLM-5.2 or GPT-5.3 Codex?

GLM-5.2 has the larger context window (1M tokens).

GLM-5.2 vs GPT-5.3 Codex

GLM-5.2 is cheaper on output tokens, while GLM-5.2 offers a larger context window. Choose GLM-5.2 or GPT-5.3 Codex based on the trade-off between cost, context, and the benchmarks that matter for your use case.

Spec	GLM-5.2	GPT-5.3 Codex
Provider	OpenRouter	OpenRouter
Input / 1M tokens	$0.95	$1.75
Output / 1M tokens	$3.00	$14.00
Context window	1M	400K
Parameters	—	—
Open weights	Yes	No
Released	Jun 2026	Feb 2026

GLM-5.2 details →GPT-5.3 Codex details →

FAQ

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