Towards AITowards AIToneBench

DeepSeek V4 Flash 0731 vs MiniMax M3

Head-to-head on the Towards AI writing benchmark: same 9 real YouTube scripts, five runs each, scored blind by a three-family judge panel. DeepSeek V4 Flash 0731 leads overall, 84.2 to 82.4. Their confidence intervals overlap, so treat the order as close rather than settled.

DeepSeek V4 Flash 0731
#34 Elo 1955 · 84.2/100
MiniMax M3
#42 Elo 1790 · 82.4/100
Cost / script
$0.005 vs $0.019
Human baseline
92.7 DeepSeek V4 Flash 0731 falls below it · MiniMax M3 falls below it

The verdict

DeepSeek V4 Flash 0731 at #34 and MiniMax M3 at #42, 84.23 against 82.43. Just under two points, and DeepSeek wins nearly every column: hooks 87.55 to 86.12, voice 85.44 to 83.80, continuity 82.02 to 79.16, YouTube structure 81.06 to 77.73, number discipline 81.75 to 79.01, even length adherence 83.57 to 82.63. MiniMax's remaining edges are cue quality and speed. Cost: half a cent against just under two cents, so DeepSeek is roughly four times cheaper as well. MiniMax is noticeably faster, 185 seconds against 289. Given the new build's 49-place jump, DeepSeek is the one I would default to here.

Pick DeepSeek V4 Flash 0731 for better hooks, voice and structure at a quarter the price.
Pick MiniMax M3 if you want the tighter length control of the two, or you need drafts back twice as fast.

Metric by metric

Blue bars: DeepSeek V4 Flash 0731. Orange bars: MiniMax M3. Same 0–100 scale; the bold bar wins that metric.

Tone & Voice Match19% weight
85.4
83.8
Writing Craft & Clarity13% weight
85.3
83.9
Substance, Accuracy & Value15% weight
83.5
81.8
Continuity & Emotion14% weight
82.0
79.2
YouTube Best Practices12% weight
81.1
77.7
Hook Strength10% weight
87.5
86.1
Length Adherence8% weight
83.6
82.6
Slop Score (EQ-Bench + ours)5% weight
88.8
87.3
Visual Cue Quality4% weight
82.4
83.0

Everything else that differs

DeepSeek V4 Flash 0731MiniMax M3
Overall / 10084.282.4
Writing Elo19551790
Run-to-run spread (± overall std)9.2405.610
Cost per script (USD)0.0050.019
Avg latency (s)289.0185.4
Open weightsYesYes

Full scorecards: DeepSeek V4 Flash 0731 · MiniMax M3. How scoring works: methodology.

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