Is GLM 5.3 or Claude Fable 5.1 cheaper?

GLM 5.3 is cheaper on output tokens ($4.40 vs $50.00 per 1M).

Which has the larger context window, GLM 5.3 or Claude Fable 5.1?

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

GLM 5.3 vs Claude Fable 5.1

GLM 5.3 is cheaper on output tokens, while GLM 5.3 offers a larger context window. Choose GLM 5.3 or Claude Fable 5.1 based on the trade-off between cost, context, and the benchmarks that matter for your use case.

Spec	GLM 5.3	Claude Fable 5.1
Provider	Prime Inference	Prime Inference
Input / 1M tokens	$1.40	$10.00
Output / 1M tokens	$4.40	$50.00
Context window	1M	1M
Parameters	—	—
Open weights	Yes	No
Released	Aug 2026	Sep 2026

GLM 5.3 details →Claude Fable 5.1 details →

FAQ

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