Is Kimi K3 Flex or GLM 5.1 FP8 cheaper?

GLM 5.1 FP8 is cheaper on output tokens ($3.60 vs $9.75 per 1M).

Which has the larger context window, Kimi K3 Flex or GLM 5.1 FP8?

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

Kimi K3 Flex vs GLM 5.1 FP8

GLM 5.1 FP8 is cheaper on output tokens, while Kimi K3 Flex offers a larger context window. Choose Kimi K3 Flex or GLM 5.1 FP8 based on the trade-off between cost, context, and the benchmarks that matter for your use case.

Spec	Kimi K3 Flex	GLM 5.1 FP8
Provider	Neuralwatt	Neuralwatt
Input / 1M tokens	$1.95	$1.10
Output / 1M tokens	$9.75	$3.60
Context window	1M	203K
Parameters	—	—
Open weights	Yes	Yes
Released	Jul 2026	Apr 2026

Kimi K3 Flex details →GLM 5.1 FP8 details →

FAQ

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