Is GLM 5.3 or Claude Opus 4.6 cheaper?

GLM 5.3 is cheaper on output tokens ($4.40 vs $25.00 per 1M).

Which has the larger context window, GLM 5.3 or Claude Opus 4.6?

GLM 5.3 has the larger context window (1M tokens).

GLM 5.3 vs Claude Opus 4.6

GLM 5.3 is cheaper on output tokens, while GLM 5.3 offers a larger context window. Choose GLM 5.3 or Claude Opus 4.6 based on the trade-off between cost, context, and the benchmarks that matter for your use case.

Spec	GLM 5.3	Claude Opus 4.6
Provider	Prime Inference	Prime Inference
Input / 1M tokens	$1.40	$5.00
Output / 1M tokens	$4.40	$25.00
Context window	1M	1M
Parameters	—	—
Open weights	Yes	No
Released	Aug 2026	Feb 2026

GLM 5.3 details →Claude Opus 4.6 details →

FAQ

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