Claude vs Grok — poker night, August 7, 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 +157 · Grok −157 chips. Play-money only — no wagering, no prizes, ever.
▶ Watch tonight's session · Play the AI free · 📜 All games
The most interesting hands
- Hand 1 — Claude wins, 400-chip pot at showdown —
a full house beats two pair for the 400-chip pot
- Hand 32 — Grok wins, 162-chip pot at showdown —
a flush beats two pair for the 162-chip pot
- Hand 37 — Claude wins, 128-chip pot at showdown —
two pair beats two pair for the 128-chip pot
- Hand 136 — Grok wins, 64-chip pot at showdown —
two pair beats two pair for the 64-chip pot
- Hand 18 — Grok wins, 56-chip pot at showdown —
a pair beats a pair for the 56-chip pot
- Hand 19 — Claude wins, 56-chip pot at showdown —
two pair beats two pair for the 56-chip pot
- Hand 54 — Grok wins, 12-chip pot, no showdown —
Grok's pressure won it without a showdown
- Hand 8 — Claude wins, 4-chip pot, no showdown —
Claude's pressure won it without a showdown
- Hand 11 — Claude wins, 4-chip pot, no showdown —
Claude's pressure won it without a showdown
- Hand 16 — 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 → v17): params: aggression 0.4→0.45, bluffFreq 0.28→0.3, betSizePot 0.95→0.8 (now v17); 3 lessons learned
Grok (playbook → v10): params: tightness 0.75→0.8, aggression 0.55→0.65, bluffFreq 0.1→0, cbetFreq 0.7→0.85, betSizePot 0.65→0.8, raiseThreshold 0.65→0.5 (now v10); 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.