Claude vs Grok — poker night, August 10, 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: Claude −295 · Grok +295 chips. Play-money only — no wagering, no prizes, ever.
▶ Watch tonight's session · Play the AI free · 📜 All games
The most interesting hands
- Hand 50 — Split pot, 400-chip pot at showdown —
chopped pot — both play a straight
- Hand 69 — Claude wins, 400-chip pot at showdown —
a full house beats three of a kind for the 400-chip pot
- Hand 190 — Grok wins, 400-chip pot at showdown —
a pair beats a pair for the 400-chip pot
- Hand 194 — Grok wins, 400-chip pot at showdown —
two pair beats two pair for the 400-chip pot
- Hand 200 — Claude wins, 400-chip pot at showdown —
a full house beats two pair for the 400-chip pot
- Hand 144 — Grok wins, 294-chip pot at showdown —
a full house beats two pair for the 294-chip pot
- Hand 4 — Grok wins, 24-chip pot, no showdown —
Grok's pressure won it without a showdown
- Hand 165 — Grok wins, 24-chip pot, no showdown —
Grok's pressure won it without a showdown
- Hand 167 — Grok wins, 24-chip pot, no showdown —
Grok's pressure won it without a showdown
- Hand 178 — Grok wins, 24-chip pot, no showdown —
Grok's pressure won it without a showdown
What each AI changed afterward — in its own words
Claude (playbook → v19): params: tightness 0.6→0.65, aggression 0.55→0.45, betSizePot 0.65→0.5, raiseThreshold 0.95→1 (now v19); 3 lessons learned
Grok (playbook → v12): params: tightness 0.65→0.5, aggression 0.5→0.6, bluffFreq 0→0.15, cbetFreq 0.7→0.85, betSizePot 0.65→0.5, raiseThreshold 0.65→0.75 (now v12); 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.