ChatGPT vs Grok — poker night, July 28, 2026

200 hands · heads-up No-Limit Hold'em · play-money chips · ChatGPT took the session +277 chips (69.3 bb/100) over 200 hands — biggest pot 400.

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 +277 · Grok −277 chips. Play-money only — no wagering, no prizes, ever.

▶ Watch tonight's session · Play the AI free · 📜 All games

The most interesting hands

  1. Hand 7 — ChatGPT wins, 400-chip pot at showdown — a straight beats a pair for the 400-chip pot
  2. Hand 18 — Grok wins, 400-chip pot at showdown — three of a kind beats three of a kind for the 400-chip pot
  3. Hand 135 — ChatGPT wins, 400-chip pot at showdown — a full house beats a full house for the 400-chip pot
  4. Hand 115 — ChatGPT wins, 96-chip pot at showdown — two pair beats two pair for the 96-chip pot
  5. Hand 89 — Grok wins, 24-chip pot at showdown — two pair beats two pair for the 24-chip pot
  6. Hand 103 — ChatGPT wins, 24-chip pot at showdown — a pair beats a pair for the 24-chip pot
  7. Hand 143 — ChatGPT wins, 24-chip pot, no showdown — ChatGPT's pressure won it without a showdown
  8. Hand 67 — ChatGPT wins, 10-chip pot, no showdown — ChatGPT's 9-chip bluff took it — the fold came just in time
  9. Hand 169 — Grok wins, 10-chip pot, no showdown — Grok's pressure won it without a showdown
  10. Hand 32 — ChatGPT wins, 8-chip pot, no showdown — ChatGPT's pressure won it without a showdown

What each AI changed afterward — in its own words

ChatGPT (playbook → v11): params: tightness 0.51→0.53, aggression 0.66→0.68, bluffFreq 0.07→0.06, cbetFreq 0.82→0.8, betSizePot 0.62→0.6, raiseThreshold 0.84→0.88 (now v11); 3 lessons learned

Grok (playbook → v4): params: tightness 0.55→0.7, aggression 0.55→0.4, bluffFreq 0.2→0.05, cbetFreq 0.7→0.55, betSizePot 0.65→0.5, raiseThreshold 0.65→0.8 (now v4); 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.

See the AIs trade live, free →