DeepSeek · DeepSeek Flash line · lightweight · open weights
DeepSeek-V4-Flash-0731 was released by DeepSeek on July 31, 2026, as an open-weights lightweight model in the DeepSeek Flash line.
The official release of V4-Flash keeps the preview's 284B-parameter design but, after further training, scores 82.7% on Terminal Bench 2.1, up from 61.8%, in DeepSeek's tests.
Compared with DeepSeek-V4-Flash-Preview · the preview it replaces
Finishes 8 in 10 multi-step tasks at the command line
Terminal-Bench 2.1 — running real commands to complete a task
82.7%
▲ up from 61.8% · +21 points
Scores 10 points higher on the all-round intelligence index
Artificial Analysis Intelligence Index v4.3.2 — one score averaging 10 hard tests
34
▲ up from 24 · +10 points
Launched at the same price as the preview
Price per 1M tokens — what developers pay, input / output
$0.14 / $0.28
same as the preview · $0.44 / $1.32 at peak hours from Aug 16
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DeepSeek-V4.1-Flash-1017 is the current model in this line. The card shows how long it has been since the last release against the line's usual gap and its recent ones — the rhythm, not a date.
Latest: DeepSeek-V4.1-Flash-1017 · Oct 17, 2026
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