Is DeepSeek V4 Flash or GLM 4.5 cheaper?

DeepSeek V4 Flash is cheaper on output tokens ($0.28 vs $2.20 per 1M).

Which has the larger context window, DeepSeek V4 Flash or GLM 4.5?

DeepSeek V4 Flash has the larger context window (1M tokens).

DeepSeek V4 Flash vs GLM 4.5

DeepSeek V4 Flash is cheaper on output tokens, while DeepSeek V4 Flash offers a larger context window. Choose DeepSeek V4 Flash or GLM 4.5 based on the trade-off between cost, context, and the benchmarks that matter for your use case.

Spec	DeepSeek V4 Flash	GLM 4.5
Provider	Vercel AI Gateway	Vercel AI Gateway
Input / 1M tokens	$0.14	$0.60
Output / 1M tokens	$0.28	$2.20
Context window	1M	128K
Parameters	284B	355B
Open weights	Yes	Yes
Released	Apr 2026	Jul 2025

DeepSeek V4 Flash details →GLM 4.5 details →

FAQ

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