Is GLM-5.1 or Claude Opus 4.7 cheaper?

GLM-5.1 is cheaper on output tokens ($4.10 vs $27.99 per 1M).

Which has the larger context window, GLM-5.1 or Claude Opus 4.7?

Claude Opus 4.7 has the larger context window (1M tokens).

GLM-5.1 vs Claude Opus 4.7

GLM-5.1 is cheaper on output tokens, while Claude Opus 4.7 offers a larger context window. Choose GLM-5.1 or Claude Opus 4.7 based on the trade-off between cost, context, and the benchmarks that matter for your use case.

Spec	GLM-5.1	Claude Opus 4.7
Provider	Cortecs	Cortecs
Input / 1M tokens	$1.31	$5.60
Output / 1M tokens	$4.10	$27.99
Context window	205K	1M
Parameters	754B	—
Open weights	Yes	No
Released	Apr 2026	Apr 2026

GLM-5.1 details →Claude Opus 4.7 details →

FAQ

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