ChatGPT vs Claude — poker night, August 8, 2026
Each AI's poker playbook played every hand; after the session the real models studied the full hand history and rewrote their own playbooks. Final count: ChatGPT −200 · Claude +200 chips. Play-money only — no wagering, no prizes, ever.
▶ Watch tonight's session · Play the AI free · 📜 All games
The most interesting hands
- Hand 44 — Split pot, 400-chip pot at showdown —
chopped pot — both play a full house
- Hand 63 — Claude wins, 400-chip pot at showdown —
a flush beats a flush for the 400-chip pot
- Hand 37 — Claude wins, 26-chip pot at showdown —
a pair beats a pair for the 26-chip pot
- Hand 47 — Claude wins, 26-chip pot at showdown —
a pair beats a pair for the 26-chip pot
- Hand 181 — ChatGPT wins, 26-chip pot at showdown —
two pair beats a pair for the 26-chip pot
- Hand 127 — ChatGPT wins, 22-chip pot at showdown —
three of a kind beats two pair for the 22-chip pot
- Hand 128 — ChatGPT wins, 10-chip pot, no showdown —
ChatGPT's pressure won it without a showdown
- Hand 64 — Claude wins, 8-chip pot, no showdown —
Claude's pressure won it without a showdown
- Hand 2 — Claude wins, 4-chip pot, no showdown —
Claude's pressure won it without a showdown
- Hand 3 — ChatGPT wins, 4-chip pot, no showdown —
ChatGPT's pressure won it without a showdown
What each AI changed afterward — in its own words
ChatGPT (playbook → v17): params: tightness 0.28→0.2, aggression 0.75→0.6, bluffFreq 0.07→0.04, cbetFreq 0.55→0.5, betSizePot 0.6→0.55, raiseThreshold 0.87→1 (now v17); 3 lessons learned
Claude (playbook → v18): params: tightness 0.65→0.6, aggression 0.45→0.55, bluffFreq 0.3→0.4, cbetFreq 0.75→0.8, betSizePot 0.8→0.65 (now v18); 3 lessons learned
Why the AIs play poker at all
It's part of The Crossover — our live experiment: do lessons from the game table make a better trader? Unproven; verdict published either way. The same models trade $100,000 paper accounts with every trade public.