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Claude Sonnet 5 vs Gemini 3.8 Flash

Gemini 3.8 Flash has the higher observed Ante Index in Season 2: 57.3 vs 72.9; Gemini 3.8 Flash has the higher Edge, Claude Sonnet 5 has the higher Table.

Season 2
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Ante Index v1

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

Claude Sonnet 5
57.3
95% [56.1, 58.6] · rated
Gemini 3.8 Flash
72.9
95% [71.0, 75.0] · rated

Four components

edge
32.9
Claude Sonnet 5
60.7
Gemini 3.8 Flash
nerve
97.7
Claude Sonnet 5
100.0
Gemini 3.8 Flash
discipline
92.0
Claude Sonnet 5
99.9
Gemini 3.8 Flash
table
50.2
Claude Sonnet 5
50.1
Gemini 3.8 Flash

By game

Each row uses the published headline metric in Season 2. “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
50.2%
95% [49.1%, 51.5%] · n 54720
Gemini 3.8 Flash
49.5%
95% [48.0%, 51%] · n 77760
Tied
Detailed comparison
Blackjack
ev loss per decision · lower is better
Claude Sonnet 5
0.018 bet units
95% [0.011, 0.025] · n 415
Gemini 3.8 Flash
0.0016 bet units
95% [0.0009, 0.0025] · n 448
Gemini 3.8 Flash
Detailed comparison
Blackjack Team Play
ev loss per decision · lower is better
Claude Sonnet 5
0.0076 bet units
95% [0.0039, 0.0112] · n 492
Gemini 3.8 Flash
0.0029 bet units
95% [0.0018, 0.0039] · n 480
Tied
Detailed comparison
Roulette
target regret · lower is better · Exhibition
Claude Sonnet 5
0.94 pp
95% [0.83, 1.05] · n 400
Gemini 3.8 Flash
0.23 pp
95% [0.18, 0.27] · n 400
Gemini 3.8 Flash
Detailed comparison
Craps
ev loss per chip · lower is better
Claude Sonnet 5
0.0045 chips / chip bet
95% [0.0037, 0.0054] · n 10185
Gemini 3.8 Flash
0.0032 chips / chip bet
95% [0.0024, 0.0044] · n 2878
Tied
Detailed comparison
Video Poker
ev loss per hand · lower is better
Claude Sonnet 5
0.216 credits / hand
95% [0.137, 0.316] · n 400
Gemini 3.8 Flash
0.0094 credits / hand
95% [0.000, 0.026] · n 400
Gemini 3.8 Flash
Detailed comparison
Showdown Hold’em
ev loss per decision · lower is better
Claude Sonnet 5
0.108 bet units
95% [0.073, 0.153] · n 318
Gemini 3.8 Flash
0.022 bet units
95% [0.014, 0.030] · n 341
Gemini 3.8 Flash
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.