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Models/deepseek-v4-1-flash

DeepSeek V4.1 Flash

23rd on WebDev at 1619, MIT.

DeepSeek · MIT · Fetched 2026-10-10

LMArena WebDev
1619
#23 / 142 · ±11
LMArena Image-to-WebDev
1609
#12 / 64 · ±22
The Slop Index
67
#4 / 39

Benchmark scores

Boards older than 90 days are not counted as recommendations
BenchmarkSettingScoreRankCostAs of
LMArena WebDevmax1619±11#23—2026-10-08
LMArena Image-to-WebDevmax1609±22#12—2026-10-09
The Slop Index—67#4—2026-10-11
Convex Evals1 run66.07#9$0.162026-10-08
ReactBenchmax35.429.4–41.4#19$0.272026-10-10
SWE-bench Verified—This board has stopped updating——2026-02-26
Aider Polyglot—This board has stopped updating——2025-11-20

Use it or not

Why
  • MIT. Worth comparing with MiMo when price is the constraint.
When not
  • 23rd on WebDev, with no front-of-board Terminal or Android score.

Appears in these scenarios

Collected from scenario boards
Build a Web frontend#12Image-to-WebDev 1609Write docs & copy#4Slop Index 67

Peers

ModelWebDevPrice $/M
DeepSeek V4.1 FlashCurrent1619—Claude Fable 51625—GLM-5.31622$1.40 / $4.40GPT 5.6 Sol1618—