Is DeepSeek V4 Flash or deepseek-ai/DeepSeek-R1 cheaper?

DeepSeek V4 Flash is cheaper on output tokens ($0.28 vs $2.18 per 1M).

Which has the larger context window, DeepSeek V4 Flash or deepseek-ai/DeepSeek-R1?

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

DeepSeek V4 Flash vs deepseek-ai/DeepSeek-R1

DeepSeek V4 Flash is cheaper on output tokens, while DeepSeek V4 Flash offers a larger context window. Choose DeepSeek V4 Flash or deepseek-ai/DeepSeek-R1 based on the trade-off between cost, context, and the benchmarks that matter for your use case.

Spec	DeepSeek V4 Flash	deepseek-ai/DeepSeek-R1
Provider	SiliconFlow (China)	SiliconFlow (China)
Input / 1M tokens	$0.14	$0.50
Output / 1M tokens	$0.28	$2.18
Context window	1M	164K
Parameters	284B	671B
Open weights	Yes	No
Released	Apr 2026	May 2025

DeepSeek V4 Flash details →deepseek-ai/DeepSeek-R1 details →

FAQ

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