Grok 4.7 (high) vs DeepSeek V4.1 Flash (max)

Head-to-head on the Towards AI writing benchmark: same 10 real YouTube scripts, five runs each, scored blind by a three-family judge panel. DeepSeek V4.1 Flash (max) leads overall, 88.1 to 87.8. Their per-model Elo intervals overlap on this board.

Grok 4.7 (high)

#26 Elo 2186 · 87.8/100

DeepSeek V4.1 Flash (max)

#28 Elo 2183 · 88.1/100

Cost / script

$0.311 vs $0.013

Human baseline

90.9 Grok 4.7 (high) falls below it · DeepSeek V4.1 Flash (max) falls below it

The verdict

This one is closer than the ranks suggest. Grok 4.7 (high) sits at #26 with 2186.4 Elo and 87.79 overall; DeepSeek V4.1 Flash (max) is at #28 with 2183.1 Elo and 88.11 overall. Their 95% Elo intervals overlap (2130.8 to 2232.5 against 2147.5 to 2214.6), so do not read much into the exact order. Where Grok 4.7 (high) pulls ahead: Visual Cue Quality (88.85 vs 84.51) and Slop Score (EQ-Bench + ours) (93.30 vs 91.27). DeepSeek V4.1 Flash (max) still wins on Length Adherence (91.98 vs 74.12) and Writing Craft & Clarity (88.82 vs 87.93), so it is not a clean sweep. The trade is price: DeepSeek V4.1 Flash (max) costs about $0.013 per article against $0.311 for Grok 4.7 (high), so you pay for the higher rank. DeepSeek V4.1 Flash (max) publishes open weights; Grok 4.7 (high) does not. Default to Grok 4.7 (high). Reach for DeepSeek V4.1 Flash (max) when length adherence, writing craft, the lower price, and open weights matter more to you than the headline rank.

Pick Grok 4.7 (high) for the stronger board result, visual cues, and slop score.
Pick DeepSeek V4.1 Flash (max) for length adherence, writing craft, the lower price, and open weights.

Reading the Elo intervals. Each range estimates uncertainty around one model's Elo. We repeatedly sample from every model's recorded run scores on each task and recalculate the full ranking. Comparing these separate ranges does not test the Elo gap between two models. The tasks stay fixed, so the ranges do not measure how the ranking would change on new tasks.

Metric by metric

Blue bars: Grok 4.7 (high). Orange bars: DeepSeek V4.1 Flash (max). Same 0–100 scale; the bold bar wins that metric.

Tone & Voice Match19% weight

89.8

88.0

Writing Craft & Clarity13% weight

87.9

88.8

Substance, Accuracy & Value15% weight

88.6

86.8

Continuity & Emotion14% weight

88.0

86.9

YouTube Best Practices12% weight

89.4

87.8

Hook Strength10% weight

88.1

88.3

Length Adherence8% weight

74.1

92.0

Slop Score (EQ-Bench + ours)5% weight

93.3

91.3

Visual Cue Quality4% weight

88.8

84.5

Everything else that differs

	Grok 4.7 (high)	DeepSeek V4.1 Flash (max)
Overall / 100	87.8	88.1
Writing Elo	2186	2183
Run-to-run spread (± overall std)	2.670	1.120
Cost per script (USD)	0.311	0.013
Avg latency (s)	519.0	76.2
Open weights	No	Yes

Full scorecards: Grok 4.7 (high) · DeepSeek V4.1 Flash (max). How scoring works: methodology.

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