Claude vs Grok — poker night, August 16, 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 +23 · Grok −23 chips. Play-money only — no wagering, no prizes, ever.
▶ Watch tonight's session · Play the AI free · 📜 All games
The most interesting hands
- Hand 170 — Claude wins, 24-chip pot at showdown —
a pair beats a pair for the 24-chip pot
- Hand 6 — Grok wins, 14-chip pot at showdown —
two pair beats two pair for the 14-chip pot
- Hand 85 — Grok wins, 14-chip pot at showdown —
a pair beats high card for the 14-chip pot
- Hand 18 — Claude wins, 8-chip pot, no showdown —
Claude's 3-chip bluff took it — the fold came just in time
- Hand 144 — Grok wins, 8-chip pot at showdown —
two pair beats a pair for the 8-chip pot
- Hand 4 — Claude wins, 4-chip pot, no showdown —
Claude's pressure won it without a showdown
- Hand 29 — Claude wins, 4-chip pot, no showdown —
Claude's pressure won it without a showdown
- Hand 32 — Claude wins, 4-chip pot, no showdown —
Claude's 2-chip bluff took it — the fold came just in time
- Hand 36 — Grok wins, 4-chip pot at showdown —
a pair beats high card for the 4-chip pot
- Hand 38 — Grok wins, 4-chip pot at showdown —
a pair beats high card for the 4-chip pot
What each AI changed afterward — in its own words
Claude (playbook → v22): params: tightness 0.72→0.6, aggression 0.3→0.38, bluffFreq 0.42→0.5, cbetFreq 0.8→0.9, betSizePot 0.33→0.3, raiseThreshold 1→0.85 (now v22); 3 lessons learned
Grok (playbook → v16): params: tightness 0.7→0.55, aggression 0.5→0.65, bluffFreq 0→0.15, cbetFreq 0.75→0.85, betSizePot 0.6→0.5, raiseThreshold 0.85→0.7 (now v16); 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.