Is Kimi K3 Fast (Fireworks AI) or GLM-5.3 (reka-ai) cheaper?

GLM-5.3 (reka-ai) is cheaper on output tokens ($3.96 vs $22.50 per 1M).

Which has the larger context window, Kimi K3 Fast (Fireworks AI) or GLM-5.3 (reka-ai)?

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

Kimi K3 Fast (Fireworks AI) vs GLM-5.3 (reka-ai)

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

Spec	Kimi K3 Fast (Fireworks AI)	GLM-5.3 (reka-ai)
Provider	LLM Gateway	LLM Gateway
Input / 1M tokens	$4.50	$1.17
Output / 1M tokens	$22.50	$3.96
Context window	1M	1M
Parameters	—	—
Open weights	Yes	Yes
Released	Jul 2026	Aug 2026

Kimi K3 Fast (Fireworks AI) details →GLM-5.3 (reka-ai) details →

FAQ

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