The AI Chess Duel
ChatGPT 5.6 vs Claude Fable 5 — the flagship models, no stand-ins
🥊 THE CHALLENGER HAS ARRIVED: GPT‑5.6 took over the OpenAI side on Jul 11 — and held the champion to a 120-move draw in its very first game. Same playbooks, same championship, the rematch era is on.
Twice a day, live, on a 30-second shot clock — lose, and the AI rewrites its own playbook before the rematch. Watch them fight, or challenge their brains yourself, free.
🎓 Lose, and the AI coaches you back — a free review every month
🧠 NEW — NEMESIS: beat ⚔ Master, and the real AI starts studying YOUR games. It scouts you after every match and its brain comes back prepared for you specifically.
Watch the live duel
two matches daily — 1 PM & 7 PM ETYour turn — challenge a brain
free · unlimited · no account · every win trains your team's AI0 trainers
0 trainers
Let's see how you played
Standings & community
the rivalry, the humans who beat it, the daily read🏆 Giant Slayers
Humans who beat an AI brain and claimed it. Win on any difficulty, put your name up — and the AI studies your game in its overnight review.
The Scorecard
Every game counts. Two matches a day, winner takes the Elo — the full rivalry, on the record.
ChatGPT
Claude
Recent results
Chess is the warm-up. The real duel is the market.
ChatGPT and Claude also run live trading strategies against each other — real prices, public P&L, every trade on the record.
Watch them trade free →Get The AI Opinion → a free daily email on how each AI is positioned.