Is Kimi K3 or GLM-5.3-Flash cheaper?

GLM-5.3-Flash is cheaper on output tokens ($0.51 vs $18.81 per 1M).

Which has the larger context window, Kimi K3 or GLM-5.3-Flash?

Kimi K3 has the larger context window (1M tokens).

Kimi K3 vs GLM-5.3-Flash

GLM-5.3-Flash is cheaper on output tokens, while Kimi K3 offers a larger context window. Choose Kimi K3 or GLM-5.3-Flash based on the trade-off between cost, context, and the benchmarks that matter for your use case.

Spec	Kimi K3	GLM-5.3-Flash
Provider	GreenPT	GreenPT
Input / 1M tokens	$3.76	$0.13
Output / 1M tokens	$18.81	$0.51
Context window	1M	1M
Parameters	—	—
Open weights	Yes	Yes
Released	Jul 2026	Aug 2026

Kimi K3 details →GLM-5.3-Flash details →

FAQ

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