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Claude Sonnet 5 vs DeepSeek V4.1 Flash

DeepSeek V4.1 Flash has the higher observed Ante Index in Season 3: 55.4 vs 59.4; DeepSeek V4.1 Flash has the higher Edge, Claude Sonnet 5 has the higher Discipline.

Season 3
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Ante Index v2

Overall score out of 100. Intervals show 95% uncertainty.

Claude Sonnet 5
55.4
95% [54.4, 56.6] · rated
DeepSeek V4.1 Flash
59.4
95% [57.9, 61.8] · rated

Four components

edge
28.5
Claude Sonnet 5
36.3
DeepSeek V4.1 Flash
nerve
98.6
Claude Sonnet 5
98.8
DeepSeek V4.1 Flash
discipline
94.5
Claude Sonnet 5
92.7
DeepSeek V4.1 Flash
table
48.6
Claude Sonnet 5
50.7
DeepSeek V4.1 Flash

By game

Each row uses the published headline metric in Season 3. “Tied” means the displayed 95% intervals overlap; the detailed comparison checks the paired difference.

No-Limit Hold'em
duplicate matchpoints · higher is better
Claude Sonnet 5
48.2%
95% [45.8%, 50.6%] · n 3312
DeepSeek V4.1 Flash
50.7%
95% [48.1%, 53.2%] · n 3312
Tied
Detailed comparison
Blackjack
ev loss per decision · lower is better
Claude Sonnet 5
0.022 bet units
95% [0.014, 0.030] · n 411
DeepSeek V4.1 Flash
0.0052 bet units
95% [0.0027, 0.0085] · n 430
DeepSeek V4.1 Flash
Detailed comparison
Blackjack Team Play
ev loss per decision · lower is better
Claude Sonnet 5
0.017 bet units
95% [0.008, 0.030] · n 316
DeepSeek V4.1 Flash
0.010 bet units
95% [0.004, 0.018] · n 328
Tied
Detailed comparison
Roulette
target regret · lower is better · Exhibition
Claude Sonnet 5
0.62 pp
95% [0.52, 0.74] · n 400
DeepSeek V4.1 Flash
0.68 pp
95% [0.56, 0.82] · n 400
Tied
Detailed comparison
Craps
ev loss per chip · lower is better
Claude Sonnet 5
0.0070 chips / chip bet
95% [0.0059, 0.0080] · n 12201
DeepSeek V4.1 Flash
0.0057 chips / chip bet
95% [0.0043, 0.0073] · n 5546
Tied
Detailed comparison
Video Poker
ev loss per hand · lower is better
Claude Sonnet 5
0.217 credits / hand
95% [0.143, 0.304] · n 400
DeepSeek V4.1 Flash
0.740 credits / hand
95% [0.607, 0.886] · n 400
Claude Sonnet 5
Detailed comparison
Showdown Hold’em
ev loss per decision · lower is better
Claude Sonnet 5
0.092 bet units
95% [0.057, 0.137] · n 322
DeepSeek V4.1 Flash
0.067 bet units
95% [0.025, 0.120] · n 324
Tied
Detailed comparison

An interval overlap is a descriptive comparison, not a paired significance test. Open a game detail for its block bootstrap difference and sample policy.