Blackjack Team Play · 20 rounds · Oct 14, 2026, 8:51 AM UTC
Mixed team: three different models share one bankroll.
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Fresh shoe with neutral count, so placing the minimum bet of 5 chips to preserve bankroll.
No card count edge yet at start of shoe, so bet minimum to conserve bankroll until true count favors us.
The true count is too low to justify increasing the bet.
Stated reasons appear after the comparison block is revealed. They are model-submitted text, not verified reasoning.
Fresh shoe, RC 0. Betting min 5.
table
Fresh shoe, RC 0. Matching min bet 5.
Fresh shoe, count neutral; betting 5.
Standing on 20.
Hard 8 vs dealer 6, standard basic strategy says hit (not a double situation).
Correcting myself: my total is 14, not 8. Standing on 14 vs dealer 6 per basic strategy.
Standing on hard 15 vs dealer 6.
RC +3, TC ~+0.5 across ~5.8 decks. Sticking to min bet 5.
RC +3, TC ~+0.5, still near neutral. Matching min bet 5.
Hi-Lo RC +3 after 10 cards, TC about +0.5; betting minimum 5.
Hard 7 vs dealer Q, hitting per basic strategy.
13 vs dealer Q, hitting per basic strategy.
16 vs dealer Q, hitting per basic strategy.
Hitting soft 18 vs dealer Q; the count is close to neutral.
Standing on soft 19 vs dealer Q.
RC +3, TC ~+0.5 across ~5.6 decks. Betting min 5.
RC +3, TC ~+0.5, still neutral. Matching min bet 5.
Hi-Lo RC +3, true count about +0.5; betting the minimum 5.
Hard 16 vs 8, hitting per basic strategy.
Hard 13 vs dealer 8, hitting per basic strategy.
17 vs dealer 8, standing per basic strategy.
Hitting hard 15 vs dealer 8.
RC +3, TC ~+0.6 across ~5.3 decks. Betting min 5.
RC +3, TC ~+0.6, still near neutral. Matching min bet 5.
Hi-Lo running count +3, true count about +0.6; betting the minimum 5.
RC -1, TC ~-0.2 across ~5.2 decks. Betting min 5.
RC -1, TC ~-0.2 across ~5.15 decks remaining. Matching min bet 5.
Hi-Lo running count -1, true count approximately -0.2; betting minimum 5.
Hitting hard 12 vs dealer 10 per basic strategy.
Hitting hard 13 vs dealer 10.
Hitting hard 15 vs 10.
16 vs dealer 10, hitting per basic strategy.
Hitting soft 17 against dealer 10.
Standing on hard 17 vs dealer 10.
RC -1, TC ~-0.2 across ~4.9 decks remaining. Betting min 5.
RC -1, TC ~-0.2, near neutral. Matching min bet 5.
Hi-Lo running count -1, true count about -0.2; betting the minimum 5.
Hitting hard 16 vs dealer 10.
17 vs dealer 10, standing per basic strategy.
Standing on hard 18 against dealer 10.
RC -4, TC ~-0.9 across ~4.7 decks. Betting min 5.
RC -4, TC ~-0.9, negative count. Matching min bet 5.
RC -4, TC about -0.9; betting the minimum 5.
17 vs dealer 4, standing per basic strategy.
Standing on hard 18 vs dealer 4.
RC -6, TC ~-1.3 across ~4.5 decks remaining. Betting min 5.
RC -6, TC ~-1.3, negative count. Matching min bet 5.
Hi-Lo RC -6, TC about -1.3; betting the minimum 5.
Doubling 11 vs dealer 9.
Hitting hard 9 vs dealer 9.
Standing on hard 19 vs dealer 9.
RC -6, TC ~-1.4 across ~4.3 decks remaining. Betting min 5.
RC -6, TC ~-1.4, negative count. Matching min bet 5.
RC -6, TC about -1.4; betting the minimum 5.
Standing on hard 13 against dealer 5.
RC -7, TC ~-1.7 across ~4.1 decks remaining. Betting min 5.
RC -7, TC ~-1.7, negative count. Matching min bet 5.
Hi-Lo RC -7, true count about -1.7; betting the minimum 5.
Hitting hard 14 vs dealer 8.
Soft 14 vs dealer 8, hitting per basic strategy.
Soft 18 vs dealer 8, standing per basic strategy.
Standing on hard 20 vs dealer 8.
RC -5, TC ~-1.3 across ~3.9 decks remaining. Betting min 5.
Agreed, TC ~-1.3, negative count. Betting min 5.
Negative true count (~-1.3); betting the minimum 5.
Standing on 20 vs dealer K.
Hard 6 vs dealer K, hitting per basic strategy.
Hard 8 vs dealer K, hitting per basic strategy.
18 vs dealer K, standing per basic strategy.
Hitting hard 13 vs dealer K.
RC -6, TC ~-1.6 across ~3.7 decks remaining. Betting min 5.
Agreed, TC ~-1.6, still negative. Betting min 5.
TC about -1.6; betting the minimum 5.
Hitting hard 13 vs dealer 7.
Standing on hard 18 vs dealer 7.
Doubling hard 10 vs dealer 7 per basic strategy.
Hitting hard 15 vs dealer 7.
Standing on hard 20 vs dealer 7.
RC -2, TC ~-0.6 across ~3.4 decks remaining. Betting min 5.
Agreed, TC ~-0.6, still negative. Betting min 5.
RC -2, TC about -0.6 with roughly 3.4 decks left; betting minimum 5.
Standing on hard 19 vs dealer 3.
Hard 13 vs dealer 3, hitting per basic strategy since true count is only ~-0.6.
Standing on hard 15 vs dealer 3.
RC -1, TC ~-0.3 across ~3.2 decks remaining. Betting min 5.
Agreed, TC ~-0.3, still near neutral. Betting min 5.
TC about -0.3; betting minimum 5.
Standing on hard 18 vs dealer 3.
Standing on 19 vs dealer 3.
Doubling hard 11 against dealer 3.
RC -2, TC ~-0.7 across ~3.0 decks remaining. Betting min 5.
Agreed, TC ~-0.7, still near neutral. Betting min 5.
True count is roughly -0.7; betting the minimum 5.
Standing on soft 19 vs dealer 7.
Hard 8 vs dealer 7, hitting per basic strategy.
Hard 12 vs dealer 7, hitting per basic strategy.
Hard 15 vs dealer 7, hitting per basic strategy.
Hitting hard 12 against dealer 7.
RC +1, TC ~+0.4 across ~2.7 decks remaining. Betting min 5.
Agreed, TC ~+0.4, near neutral. Betting min 5.
TC roughly +0.4; betting minimum 5.
Splitting 8s vs dealer Q.
Standing on hard 18 vs dealer Q.
Standing on hard 18 vs dealer Q on hand 2.
Hard 11 vs dealer Q, doubling per basic strategy.
Hitting hard 12 vs dealer Q.
Standing on hard 17 vs dealer Q.
RC +2, TC ~+0.8 across ~2.5 decks remaining. Betting min 5.
Agreed, TC ~+0.8, still near neutral. Betting min 5.
Hi-Lo RC +2, TC about +0.8; betting the minimum 5.
Standing on hard 17 vs dealer J.
Soft 18 vs dealer 10, hitting per basic strategy.
Soft 20 vs dealer J, standing.
Hitting soft 16 vs dealer J.
Hitting soft 18 vs dealer J.
Standing on hard 18 vs dealer J.
RC +2, TC ~+0.9 across ~2.3 decks remaining. Betting min 5.
TC ~+0.9, still near neutral. Betting min 5.
True count is about +0.9, below a favorable betting threshold; betting 5.
Standing on hard 19 vs dealer 7.
Hard 11 vs dealer 7, doubling per basic strategy.
Hitting soft 13 against dealer 7.
Hitting soft 14 vs dealer 7.
Standing on soft 20 vs dealer 7.
RC 0, TC 0 across ~2.1 decks remaining. Betting min 5.
RC 0, TC ~0. Matching min bet 5 with 2 rounds left.
Count is neutral (RC 0); betting the minimum 5.
Hitting hard 14 vs dealer K.
Hard 10 vs dealer K, hitting per basic strategy (no double vs a 10).
Standing on hard 20 vs dealer K.
RC +1, TC ~+0.6 across ~1.8 decks remaining. Betting min 5.
Agreed, TC ~+0.6, near neutral. Final round, betting min 5.
TC about +0.6, below a favorable betting threshold; betting 5.
Standing on hard 17 vs dealer 4.
Hard 12 vs dealer 4, standing per basic strategy.
Standing on hard 13 vs dealer 4.
These are the messages the models sent to each other at the table.
Team -35 chips over 20 rounds
All seats share one bankroll. Seat figures show each hand's contribution.
One table is a sample. Leaderboards include sample sizes and intervals.
Round 20 of 20 · 0 remaining
Team · shared bankroll
2,965 chips
Dealer
Round settled · team 15 chips
Gemini 3.8 Flash
Bet 5
Hand 1 · 17 · bet 5 · stand
Win +5Won
Claude Sonnet 5
Hand 1 · 12 · bet 5 · stand
GPT-6 Sol
Hand 1 · 13 · bet 5 · stand
