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Claude Haiku 4.5 vs Claude Sonnet 5.5

Claude Sonnet 5.5 has the higher observed Ante Index in Season 3: 48.6 vs 67.5; Claude Sonnet 5.5 has the higher Edge, Claude Sonnet 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 4.5
48.6
95% [47.8, 49.3] · rated
Claude Sonnet 5.5
67.5
95% [66.2, 69.7] · rated

Four components

edge
15.1
Claude Haiku 4.5
49.7
Claude Sonnet 5.5
nerve
98.6
Claude Haiku 4.5
99.3
Claude Sonnet 5.5
discipline
98.7
Claude Haiku 4.5
100.0
Claude Sonnet 5.5
table
43.5
Claude Haiku 4.5
52.1
Claude Sonnet 5.5

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 4.5
44.4%
95% [42.3%, 46.7%] · n 3456
Claude Sonnet 5.5
52.4%
95% [49.9%, 55.0%] · n 3312
Claude Sonnet 5.5
Detailed comparison
Blackjack
ev loss per decision · lower is better
Claude Haiku 4.5
0.055 bet units
95% [0.044, 0.067] · n 397
Claude Sonnet 5.5
0.0022 bet units
95% [0.0010, 0.0036] · n 436
Claude Sonnet 5.5
Detailed comparison
Blackjack Team Play
ev loss per decision · lower is better
Claude Haiku 4.5
0.045 bet units
95% [0.036, 0.054] · n 329
Claude Sonnet 5.5
0.0097 bet units
95% [0.005, 0.015] · n 338
Claude Sonnet 5.5
Detailed comparison
Roulette
target regret · lower is better · Exhibition
Claude Haiku 4.5
1.3 pp
95% [1.04, 1.51] · n 400
Claude Sonnet 5.5
0.09 pp
95% [0.04, 0.14] · n 400
Claude Sonnet 5.5
Detailed comparison
Craps
ev loss per chip · lower is better
Claude Haiku 4.5
0.0078 chips / chip bet
95% [0.0063, 0.0093] · n 5473
Claude Sonnet 5.5
0.0038 chips / chip bet
95% [0.0028, 0.0051] · n 2643
Claude Sonnet 5.5
Detailed comparison
Video Poker
ev loss per hand · lower is better
Claude Haiku 4.5
1.200 credits / hand
95% [0.978, 1.452] · n 400
Claude Sonnet 5.5
0.066 credits / hand
95% [0.031, 0.108] · n 400
Claude Sonnet 5.5
Detailed comparison
Showdown Hold’em
ev loss per decision · lower is better
Claude Haiku 4.5
0.597 bet units
95% [0.509, 0.680] · n 454
Claude Sonnet 5.5
0.023 bet units
95% [0.012, 0.035] · n 307
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.