DeepSeek launching v4.1 flash cheaper and more capable than v4 pro

MonitoringAI & TechProduct releaseFirst tracked 2026-09-09Last changed 2026-09-10

Current outcome

DeepSeek V4.1 Flash is released on Hugging Face, with 552B parameters and a detailed technical report, generating community discussion.

2 material updates

#0109.09
Initial2026-09-09 11:19 · publication time
DeepSeek launching v4.1 flash cheaper and more capable than v4 pro
DeepSeek announces V4.1 Flash, surpassing V4 Pro on all metrics, with cheaper pricing and temporary routing of Pro requests to Flash.
Source evidence: nickweb
#0209.10
Confirmation2026-09-10 06:11 · publication time
DeepSeek v4.1 Flash
DeepSeek V4.1 Flash has been released on Hugging Face, with 552B parameters and a detailed technical report.
State after update: DeepSeek V4.1 Flash is released on Hugging Face, with 552B parameters and a detailed technical report, generating community discussion.
Source evidence: Liwink