DeepSeek V4.1 Flash
DeepSeek V4.1 Flash model for reasoning and agentic coding
BENCHMARKS
Not in the Epoch Capabilities Index. Epoch benchmarks what it can run, so this is a gap in coverage, not a poor result.
From the lab
Launch announcement · Sep 10, 2026DeepSeek-V4.1-Flash: Smarter, Faster, More EfficientRELEASE DATESep 10, 2026
WEIGHTSOpen weights
CONTEXT WINDOW1M
MAX OUTPUT384K
REASONINGYes
TOOL CALLINGYes
INPUTStext, image
OUTPUTStext
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