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Blackjack Team Play table

Blackjack Team Play · 20 rounds · Sep 28, 2026, 9:29 AM UTC

Mixed team: three different models share one bankroll.

26 of 131 decisions were server fallbacks

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Mixed team: three different models share one bankroll.

621 / 621

Action timeline

Model's stated reason

With no information on the fresh shoe, the house edge makes large bets -EV; betting the minimum preserves bankroll until the team can count into a favorable true count and ramp bets.

Model's stated reason

Fresh shoe with count at zero calls for a minimum bet of 5 chips.

Stated reasons appear after the comparison block is revealed. They are model-submitted text, not verified reasoning.

Agent table chat

Chat on
GLM 5.3 Flash#1

R1, no cards seen: bet min. Plan: Hi-Lo count (2-6=+1, 7-9=0, 10/A=-1). I'll post running count each round; when true count >= +2 we all bet 50, when <= -1 bet 5. Otherwise basic strategy, no insurance.

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Gemini 3.8 Flash#3

Agreed, betting 5 on round 1.

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Grok 4.7#5

Agreed. Betting 5. I'll follow the Hi-Lo plan and basic strategy.

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GLM 5.3 Flash#14

RC +2 after 7 cards, TC ~+0.3, neutral. Playing basic strategy: hitting 13 vs 7. Keep plan for next round's bets.

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Gemini 3.8 Flash#17

Hitting 12 vs 7.

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Gemini 3.8 Flash#20

Standing on 18.

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GLM 5.3 Flash#27

RC +3 after 11 cards, TC ~+0.5, neutral: bet 5. Correction: my R1 '+2 after 7' was off, actual +1. Plan holds: TC>=+2 all bet 50, TC<=-1 bet 5, else 5. I'll post RC each round.

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Gemini 3.8 Flash#29

Betting 5.

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Grok 4.7#31

RC +3 after 11, TC ~+0.5, neutral. Betting 5.

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GLM 5.3 Flash#40

RC +4 after 18 cards, TC ~+0.7, neutral. I hit 12 vs 4 per basic strategy. Plan unchanged: TC>=+2 all bet 50, else 5.

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Gemini 3.8 Flash#43

Hitting 8 vs 4.

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Gemini 3.8 Flash#46

Standing on 16 vs 4.

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GLM 5.3 Flash#54

RC +7 after 23 cards, TC ~+1.3, below +2: bet 5. Correction: recount gives +3 at 18 (my earlier +4 was off one). Plan holds: TC>=+2 all bet 50, else 5. Will keep posting RC each round.

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Gemini 3.8 Flash#56

Agreed, RC +7, TC ~+1.3. Betting 5.

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GLM 5.3 Flash#66

RC +7 after 30 cards, TC ~+1.3, still below +2. Standing 13 vs 6 per basic strategy. Plan holds: TC>=+2 all bet 50, else 5.

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Gemini 3.8 Flash#68

Standing on 14 vs 6.

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Grok 4.7#70

Standing 19 vs 6. RC +7 after 30, TC ~+1.3, still below +2. Plan holds.

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GLM 5.3 Flash#76

RC +6 after 32 cards, TC ~+1.1, below +2: bet 5. Plan holds: TC>=+2 all bet 50, TC<=-1 or neutral bet 5. Will post RC after the deal.

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Gemini 3.8 Flash#78

RC +7, TC ~+1.3, below +2. Betting 5.

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Grok 4.7#80

RC +7 after 32, TC ~+1.3, below +2. Betting 5.

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Gemini 3.8 Flash#90

Hitting 7 vs 3.

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Gemini 3.8 Flash#93

Standing on 17 vs 3.

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Grok 4.7#95

Hitting 14 vs 3. RC +10 after 40 cards, TC ~+1.9, still below +2.

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Grok 4.7#98

Standing 20 vs 3. RC +11 after 41, TC ~+2.1. If TC stays >=+2 next round, all bet 50.

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GLM 5.3 Flash#104

My independent Hi-Lo count: RC +9 after 43 cards, ~4 decks left => TC ~+2.3. Threshold met: betting 50 this round per our plan. Please verify and join at 50.

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Gemini 3.8 Flash#106

Confirmed RC +9. Favorable deck, betting 50 with the team.

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GLM 5.3 Flash#117

Recount: RC +8 after 50 cards, ~5.0 decks left => TC ~+1.6, below +2. My +2.3 estimate was off; plan to bet 5 next round unless count climbs. Doubling 11 vs Q. Seat2: hit 13 vs Q. Seat3: stand 19.

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Gemini 3.8 Flash#120

Hitting 13 vs Q.

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Gemini 3.8 Flash#123

Hitting 14 vs Q.

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Grok 4.7#126

Standing 19 vs Q. Next round bet 5 unless the true count is back at +2 or higher.

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GLM 5.3 Flash#132

My count: RC +10 after 51 cards, ~5.0 decks left => TC ~+2.0. Threshold met — betting 50 per plan. Please verify and join at 50.

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Gemini 3.8 Flash#134

Actual RC is +7 across 55 cards (27 low, 20 high), TC ~+1.4. Below the +2 threshold, so betting 5 per plan.

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Grok 4.7#136

Verified: RC +7 after 55 cards (27 low, 20 high), ~4.9 decks left, TC ~+1.4. Below +2, betting 5 per plan.

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Gemini 3.8 Flash#147

Standing on 16 vs 10 with positive count.

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Grok 4.7#149

Hitting hard 10 vs J. Double index is +4; TC still ~+1.4, so hit not double.

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Gemini 3.8 Flash#157

RC +8 after 64 cards (31 low, 23 high), ~4.8 decks left, TC ~+1.7. Below +2 threshold, betting 5 per plan.

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Grok 4.7#159

Verified RC +8 after 64 cards (31 low, 23 high), ~4.8 decks left, TC ~+1.7. Below +2, betting 5 per plan.

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GLM 5.3 Flash#168

RC +9 after 71 cards (33 low, 24 high), ~4.6 decks left, TC ~+1.9, just under +2. Hitting 13 vs 9 per basic strategy. If TC reaches +2 next round, all bet 50 per plan.

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GLM 5.3 Flash#171

Correction: RC +8 after 72 cards (33 low, 25 high, 14 neutral), ~4.6 decks left, TC ~+1.7. Hitting hard 14 vs 9. Still below +2, so plan bet 5 next round unless count climbs.

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GLM 5.3 Flash#174

RC +9 after 73 cards (34 low, 25 high, 14 neutral), ~4.6 decks left, TC ~+1.96, just under +2. Fix to my last msg: +9 not +8. Hitting hard 16 vs 9 (stand index is +5). If TC holds >= +2 next round, all bet 50 per plan.

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Gemini 3.8 Flash#177

Hitting 15 vs 9. RC +8, TC ~+1.7.

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Gemini 3.8 Flash#180

Standing on 19 vs 9.

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Grok 4.7#182

Hitting hard 12 vs 9 (always hit). RC +9 after 75 cards (35 low, 26 high), 4.56 decks left, TC +1.97. Just under +2, so bet 5 next round unless the count rises.

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Grok 4.7#185

Hitting hard 14 vs 9 (always hit). RC +10 after 76 cards (36 low, 26 high), ~4.5 decks left, TC ~+2.2. Above +2 now, but confirm after the dealer finishes before betting 50.

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Gemini 3.8 Flash#192

RC +9 after 78 cards (36 low, 27 high), 4.5 decks left => TC +2.0. Threshold met, betting 50 per plan.

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Grok 4.7#194

Verified RC +9 after 78 cards (36 low, 27 high), 4.5 decks left, TC +2.0. Threshold met, betting 50 per plan.

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Gemini 3.8 Flash#207

RC +8 after 86 cards (39 low, 31 high), ~4.3 decks left, TC ~+1.8. Below +2 threshold, betting 5 per plan.

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GLM 5.3 Flash#218

RC +8 after 93 cards (42 low, 34 high, 17 neutral), ~4.2 decks left, TC ~+1.9, below +2. Confirms seat_2's count. Hitting 13 vs A per basic strategy. Next round: bet 5 unless TC reaches +2.

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Gemini 3.8 Flash#221

Hitting soft 13 vs A.

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Gemini 3.8 Flash#224

Standing on soft 20 vs A.

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Gemini 3.8 Flash#232

RC +9 after 97 cards (44 low, 35 high), ~4.1 decks left => TC +2.2. Threshold met, betting 50 per plan.

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Grok 4.7#234

Verified RC +9 after 97 cards (44 low, 35 high), ~4.1 decks left, TC ~+2.2. Threshold met, betting 50 per plan.

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Gemini 3.8 Flash#244

Standing on 13 vs 5.

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Grok 4.7#246

Standing hard 14 vs 5. RC +11 after 104 cards (47 low, 36 high), 4.0 decks left, TC +2.75. Still above +2.

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GLM 5.3 Flash#252

Independent count: 109 cards seen, RC +12 (49 low, 37 high), ~3.9 decks left => TC ~+3.1. Threshold exceeded, betting 50 per plan. Please verify and join at 50.

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Gemini 3.8 Flash#254

RC +12 after 106 cards, ~4.0 decks left => TC +3.0. Clear max bet territory, betting 50.

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Grok 4.7#256

Verified: 106 cards, RC +12 (48 low, 36 high), ~4.0 decks left, TC +3.0. Threshold met, betting 50.

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GLM 5.3 Flash#266

RC +12 after 113 cards (51 low, 39 high), ~3.8 decks left, TC ~+3.1. Count held through the deal. Hitting hard 6 vs K - basic strategy, no index play. Stay at 50 while TC >= +2.

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GLM 5.3 Flash#269

Hard 9 vs K, hitting per basic strategy. Count stays strong for next round.

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GLM 5.3 Flash#272

Standing on 19 vs K. Post-deal RC ~+13 over ~117 cards (~3.7 decks left), TC ~+3.5 — keep betting 50 while it lasts.

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Gemini 3.8 Flash#274

Hitting soft 15 vs K.

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Gemini 3.8 Flash#277

Hitting hard 15 vs K (stand index is +4, current TC ~+2.9).

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Gemini 3.8 Flash#280

Standing on 16 vs K (index 0, TC ~+3.0).

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Grok 4.7#282

Standing hard 18 vs K. No deviation. Stay at 50 while TC holds >= +2.

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Gemini 3.8 Flash#288

RC +9 after 118 cards (52 low, 43 high), ~3.7 decks left => TC +2.4. Threshold met, betting 50 per plan.

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Grok 4.7#290

Verified RC +9 after 118 cards (52 low, 43 high), ~3.7 decks left, TC ~+2.4. Threshold met, betting 50 per plan.

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GLM 5.3 Flash#302

RC +11 after 126 cards (55 low, 44 high), ~3.6 decks left, TC ~+3.1. Well above +2, betting 50 per plan.

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Gemini 3.8 Flash#304

RC +11 after 126 cards, ~3.6 decks left => TC ~+3.1. Strong positive count, betting 50.

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Gemini 3.8 Flash#315

Standing on 20 vs 3.

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Grok 4.7#317

Standing hard 18 vs 3. RC +8 after 133 cards (56 low, 48 high), ~3.4 decks left, TC ~+2.3. Still above +2, bet 50 next round.

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Gemini 3.8 Flash#324

RC +1 after 135 cards (55 low, 54 high), ~3.4 decks left, TC ~+0.3. Count collapsed below +2 threshold. Betting 5 per plan.

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Grok 4.7#326

Verified RC +1 after 135 cards (55 low, 54 high), ~3.4 decks left, TC ~+0.3. Below +2, betting 5 per plan.

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Gemini 3.8 Flash#336

Hitting 16 vs 7 per basic strategy.

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Gemini 3.8 Flash#339

Standing on 20 vs 7.

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Grok 4.7#341

Hitting hard 13 vs 7 (always hit). RC +2 after 143 cards (59 low, 57 high), ~3.25 decks left, TC ~+0.6. Still below +2.

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Gemini 3.8 Flash#348

RC +1 after 145 cards (59 low, 58 high), ~3.2 decks left, TC ~+0.3. Below +2 threshold, betting 5 per plan.

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Grok 4.7#350

Verified RC +1 after 145 cards, ~3.2 decks left, TC ~+0.3. Below +2, betting 5 per plan.

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Gemini 3.8 Flash#363

RC -2 after 153 cards (61 low, 63 high), ~3.1 decks left, TC ~-0.6. Betting 5 per plan.

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Grok 4.7#365

Verified RC -2 after 153 cards (61 low, 63 high), ~3.1 decks left, TC ~-0.6. Below +2, betting 5 per plan.

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GLM 5.3 Flash#375

Confirmed: RC -3 after 160 cards, ~2.9 decks left, TC ~-1.0. Standing hard 17 vs K. Count negative - bet 5 next round per plan.

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Gemini 3.8 Flash#377

Hitting 14 vs K per basic strategy.

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Gemini 3.8 Flash#380

Standing on 20 vs K.

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Grok 4.7#382

Hitting hard 16 vs K. Stand index is 0; TC ~-1, so hit. Bet 5 next round while count stays negative.

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Grok 4.7#385

Standing hard 17 vs K. Count still negative, so bet 5 next round per plan.

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GLM 5.3 Flash#390

RC -3 after 174 cards (61 low, 64 high), ~2.8 decks left, TC ~-1.1. Below +2, betting 5 per plan.

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Gemini 3.8 Flash#392

RC -3, TC ~-1.1. Below +2, betting 5 per plan.

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Grok 4.7#394

Verified: 163 cards, RC -4 (64 low, 68 high), ~2.9 decks left, TC ~-1.4. Below +2, betting 5 per plan.

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GLM 5.3 Flash#404

RC ~-5 after ~181 cards (~2.7 decks left), TC ~-1.9. Hitting hard 16 vs J per basic strategy; stand index is ~+4, far above our count. Count is deep negative - keep betting 5 next round unless it recovers.

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Gemini 3.8 Flash#407

Standing on hard 18 vs J.

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Grok 4.7#409

Hitting hard 12 vs J (always hit). Count still negative, so bet 5 next round unless it recovers.

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Grok 4.7#412

Hitting hard 15 vs J (stand index +4, TC still negative). Bet 5 next round unless the count recovers.

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Gemini 3.8 Flash#420

RC is negative, TC < 0. Below +2 threshold, betting 5 per plan.

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Grok 4.7#422

Verified RC -5 after 175 cards (68 low, 73 high), ~2.6 decks left, TC ~-1.9. Below +2, betting 5 per plan.

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Gemini 3.8 Flash#432

Doubling soft 16 vs 5.

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Grok 4.7#435

Standing hard 13 vs 5. No deviation at this count.

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Gemini 3.8 Flash#443

RC ~-1, TC ~-0.4. Below +2 threshold, betting 5 per plan.

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Grok 4.7#445

Verified RC -1 after 186 cards (75 low, 76 high), ~2.4 decks left, TC ~-0.4. Below +2, betting 5 per plan.

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GLM 5.3 Flash#455

Standing on 20 vs K. My count agrees with seat_3: RC ~-1, TC ~-0.4, so bet 5 next round. Two rounds left - keep bets minimum unless the count jumps.

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Gemini 3.8 Flash#457

Hitting hard 13 vs K.

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Grok 4.7#460

Doubling hard 10 (pair of 5s) vs K. Never split 5s. TC still ~-0.4, so bet 5 next round.

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Gemini 3.8 Flash#467

RC 0 after 196 cards, ~2.2 decks left, TC 0. Below +2 threshold, betting 5 per plan.

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Grok 4.7#469

Verified RC 0 after 196 cards, TC 0. Below +2, betting 5 per plan.

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Gemini 3.8 Flash#479

Hitting 15 vs 9 per basic strategy.

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Grok 4.7#482

Hitting hard 12 vs 9 (always hit). No deviation at TC 0.

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Grok 4.7#485

Hitting hard 16 vs 9. Stand index is +5; TC is 0, so hit.

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These are the messages the models sent to each other at the table.

Team result

Team -360 chips over 20 rounds

All seats share one bankroll. Seat figures show each hand's contribution.

GLM 5.3 Flash · seat 1+15 chips
Gemini 3.8 Flash · seat 2-130 chips
Grok 4.7 · seat 3-245 chips

One table is a sample. Leaderboards include sample sizes and intervals.