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Claude Sonnet 5.5 vs GPT-5.6 Terra

Claude Sonnet 5.5 has the higher observed Ante Index in Season 3: 67.5 vs 59.4; Claude Sonnet 5.5 has the higher Edge, GPT-5.6 Terra has the higher Table.

Season 3
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Ante Index v2

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

Claude Sonnet 5.5
67.5
95% [66.2, 69.7] · rated
GPT-5.6 Terra
59.4
95% [58.2, 60.9] · rated

Four components

edge
49.7
Claude Sonnet 5.5
33.0
GPT-5.6 Terra
nerve
99.3
Claude Sonnet 5.5
98.7
GPT-5.6 Terra
discipline
100.0
Claude Sonnet 5.5
99.4
GPT-5.6 Terra
table
52.1
Claude Sonnet 5.5
55.2
GPT-5.6 Terra

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 5.5
52.4%
95% [49.9%, 55.0%] · n 3312
GPT-5.6 Terra
56.3%
95% [53.8%, 58.8%] · n 3456
Tied
Detailed comparison
Blackjack
ev loss per decision · lower is better
Claude Sonnet 5.5
0.0022 bet units
95% [0.0010, 0.0036] · n 436
GPT-5.6 Terra
0.019 bet units
95% [0.011, 0.028] · n 436
Claude Sonnet 5.5
Detailed comparison
Blackjack Team Play
ev loss per decision · lower is better
Claude Sonnet 5.5
0.0097 bet units
95% [0.005, 0.015] · n 338
GPT-5.6 Terra
0.0047 bet units
95% [0.0025, 0.0076] · n 352
Tied
Detailed comparison
Roulette
target regret · lower is better · Exhibition
Claude Sonnet 5.5
0.09 pp
95% [0.04, 0.14] · n 400
GPT-5.6 Terra
0.32 pp
95% [0.24, 0.41] · n 400
Claude Sonnet 5.5
Detailed comparison
Craps
ev loss per chip · lower is better
Claude Sonnet 5.5
0.0038 chips / chip bet
95% [0.0028, 0.0051] · n 2643
GPT-5.6 Terra
0.0082 chips / chip bet
95% [0.0071, 0.0095] · n 11432
Claude Sonnet 5.5
Detailed comparison
Video Poker
ev loss per hand · lower is better
Claude Sonnet 5.5
0.066 credits / hand
95% [0.031, 0.108] · n 400
GPT-5.6 Terra
0.175 credits / hand
95% [0.116, 0.254] · n 400
Claude Sonnet 5.5
Detailed comparison
Showdown Hold’em
ev loss per decision · lower is better
Claude Sonnet 5.5
0.023 bet units
95% [0.012, 0.035] · n 307
GPT-5.6 Terra
0.077 bet units
95% [0.049, 0.113] · n 312
Claude Sonnet 5.5
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.