Is Z.ai: GLM 5.1 or DeepSeek: R1 cheaper?

DeepSeek: R1 is cheaper on output tokens ($2.50 vs $3.96 per 1M).

Which has the larger context window, Z.ai: GLM 5.1 or DeepSeek: R1?

Z.ai: GLM 5.1 has the larger context window (203K tokens).

Z.ai: GLM 5.1 vs DeepSeek: R1

DeepSeek: R1 is cheaper on output tokens, while Z.ai: GLM 5.1 offers a larger context window. Choose Z.ai: GLM 5.1 or DeepSeek: R1 based on the trade-off between cost, context, and the benchmarks that matter for your use case.

Spec	Z.ai: GLM 5.1	DeepSeek: R1
Provider	Kilo Gateway	Kilo Gateway
Input / 1M tokens	$1.26	$0.70
Output / 1M tokens	$3.96	$2.50
Context window	203K	64K
Parameters	754B	671B
Open weights	Yes	Yes
Released	Mar 2026	Jan 2025

Z.ai: GLM 5.1 details →DeepSeek: R1 details →

FAQ

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