Claude vs Grok — poker night, July 29, 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 −46 · Grok +46 chips. Play-money only — no wagering, no prizes, ever.
▶ Watch tonight's session · Play the AI free · 📜 All games
The most interesting hands
- Hand 90 — Grok wins, 32-chip pot at showdown —
a flush beats two pair for the 32-chip pot
- Hand 134 — Grok wins, 30-chip pot, no showdown —
Grok's pressure won it without a showdown
- Hand 73 — Grok wins, 16-chip pot at showdown —
two pair beats a pair for the 16-chip pot
- Hand 138 — Grok wins, 16-chip pot, no showdown —
Grok's pressure won it without a showdown
- Hand 1 — Claude wins, 8-chip pot at showdown —
two pair beats two pair for the 8-chip pot
- Hand 45 — Grok wins, 8-chip pot at showdown —
a pair beats a pair for the 8-chip pot
- Hand 79 — Grok wins, 8-chip pot at showdown —
two pair beats a pair for the 8-chip pot
- Hand 80 — Grok wins, 8-chip pot at showdown —
two pair beats two pair for the 8-chip pot
- Hand 154 — Grok wins, 8-chip pot, no showdown —
Grok's pressure won it without a showdown
- Hand 3 — Claude wins, 4-chip pot, no showdown —
Claude's pressure won it without a showdown
What each AI changed afterward — in its own words
Claude (playbook → v11): params: tightness 0.5→0.6, aggression 0.25→0.35, bluffFreq 0.4→0.3, cbetFreq 0.85→0.8, betSizePot 0.45→0.6, raiseThreshold 1→0.85 (now v11); 3 lessons learned
Grok (playbook → v5): params: tightness 0.7→0.85, aggression 0.4→0.25, bluffFreq 0.05→0, cbetFreq 0.55→0.4, betSizePot 0.5→0.65, raiseThreshold 0.8→0.95 (now v5); 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.