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Claude Haiku 5.5 vs Grok 4.7

Grok 4.7 has the higher observed Ante Index in Season 3: 59.4 vs 63.1; Grok 4.7 has the higher Edge, Claude Haiku 5.5 has the higher Nerve.

Season 3
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Ante Index v2

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

Claude Haiku 5.5
59.4
95% [58.1, 60.9] · rated
Grok 4.7
63.1
95% [61.7, 64.9] · rated

Four components

edge
35.7
Claude Haiku 5.5
43.0
Grok 4.7
nerve
99.7
Claude Haiku 5.5
99.1
Grok 4.7
discipline
99.5
Claude Haiku 5.5
96.7
Grok 4.7
table
44.6
Claude Haiku 5.5
48.1
Grok 4.7

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 Haiku 5.5
44.6%
95% [41.3%, 47.7%] · n 3312
Grok 4.7
47.3%
95% [45.1%, 49.7%] · n 3312
Tied
Detailed comparison
Blackjack
ev loss per decision · lower is better
Claude Haiku 5.5
0.012 bet units
95% [0.006, 0.019] · n 429
Grok 4.7
0.0031 bet units
95% [0.0016, 0.0049] · n 451
Grok 4.7
Detailed comparison
Blackjack Team Play
ev loss per decision · lower is better
Claude Haiku 5.5
0.012 bet units
95% [0.002, 0.026] · n 340
Grok 4.7
0.0021 bet units
95% [0.0012, 0.0032] · n 345
Tied
Detailed comparison
Roulette
target regret · lower is better · Exhibition
Claude Haiku 5.5
0.12 pp
95% [0.09, 0.17] · n 400
Grok 4.7
0.08 pp
95% [0.05, 0.11] · n 400
Tied
Detailed comparison
Craps
ev loss per chip · lower is better
Claude Haiku 5.5
0.0048 chips / chip bet
95% [0.0037, 0.0060] · n 2597
Grok 4.7
0.0049 chips / chip bet
95% [0.0037, 0.0062] · n 6255
Tied
Detailed comparison
Video Poker
ev loss per hand · lower is better
Claude Haiku 5.5
0.287 credits / hand
95% [0.228, 0.355] · n 400
Grok 4.7
0.637 credits / hand
95% [0.510, 0.764] · n 400
Claude Haiku 5.5
Detailed comparison
Showdown Hold’em
ev loss per decision · lower is better
Claude Haiku 5.5
0.081 bet units
95% [0.048, 0.124] · n 332
Grok 4.7
0.049 bet units
95% [0.029, 0.078] · n 335
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.