Is Kimi K3 Fast or GLM 5.3 cheaper?

GLM 5.3 is cheaper on output tokens ($4.40 vs $22.50 per 1M).

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

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

Kimi K3 Fast vs GLM 5.3

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

Spec	Kimi K3 Fast	GLM 5.3
Provider	Fireworks AI	Fireworks AI
Input / 1M tokens	$4.50	$1.40
Output / 1M tokens	$22.50	$4.40
Context window	1M	1M
Parameters	—	—
Open weights	Yes	Yes
Released	Jul 2026	Aug 2026

Kimi K3 Fast details →GLM 5.3 details →

FAQ

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