Skip to content

DeepSeek V4.1 Flash Fast vs DeepSeek V3.1

DeepSeek V3.1 is cheaper on output tokens, while DeepSeek V4.1 Flash Fast offers a larger context window. Choose DeepSeek V4.1 Flash Fast or DeepSeek V3.1 based on the trade-off between cost, context, and the benchmarks that matter for your use case.

SpecDeepSeek V4.1 Flash FastDeepSeek V3.1
ProviderBasetenBaseten
Input / 1M tokens$0.60$0.50
Output / 1M tokens$2.40$1.50
Context window1M164K
Parameters——
Open weightsYesYes
ReleasedSep 2026Aug 2025

FAQ

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