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Models/deepseek-v4-pro

DeepSeek V4 Pro

14th on DeepSWE v1.1 Best (max) at 62.8%, about $0.24 mean per task.

DeepSeek · Proprietary · Fetched 2026-10-10

LMArena WebDev
1582
#39 / 153 · ±9
The Slop Index
69
#8 / 58
Convex Evals
30.36%
#35 / 41

Benchmark scores

Boards older than 90 days are not counted as recommendations
BenchmarkSettingScoreRankCostAs of
LMArena WebDevhigh1582±9#39—2026-10-27
The Slop Index—69#8—2026-10-28
Convex Evals1 run30.36#35$0.664432026-10-28
DeepSWE v1.1max · mini-swe-agent62.856.5–69.2#14$0.242026-09-22
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
  • Mid-front on DeepSWE at a very low per-task cost.
When not
  • A different row from V4.1 Flash / V4 Flash; do not merge them.

Appears in these scenarios

Collected from scenario boards
Build a Web frontend#14DeepSWE 62.8%Build an Android app#14DeepSWE 62.8%Write CLI, scripts, and DevOps#14DeepSWE 62.8%Write docs & copy#8Slop Index 69

Peers