Is GLM-5.3-Flash or DeepSeek V4 Pro cheaper?

GLM-5.3-Flash is cheaper on output tokens ($0.50 vs $3.48 per 1M).

Which has the larger context window, GLM-5.3-Flash or DeepSeek V4 Pro?

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

GLM-5.3-Flash vs DeepSeek V4 Pro

GLM-5.3-Flash is cheaper on output tokens, while GLM-5.3-Flash offers a larger context window. Choose GLM-5.3-Flash or DeepSeek V4 Pro based on the trade-off between cost, context, and the benchmarks that matter for your use case.

Spec	GLM-5.3-Flash	DeepSeek V4 Pro
Provider	Together AI	Together AI
Input / 1M tokens	$0.15	$1.74
Output / 1M tokens	$0.50	$3.48
Context window	1M	512K
Parameters	—	1.6T
Open weights	Yes	Yes
Released	Aug 2026	Apr 2026

GLM-5.3-Flash details →DeepSeek V4 Pro details →

FAQ

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