During actual testing of 11 models in the YZ Index in June 2026, Doubao Pro's material constraint score in the Smoke evaluation dropped from 100.00 to 84.10, a decline of 15.9 points, causing its main ranking total score to fall from 100.00 to 92.85.
In the June 2026 YZ Index real-world test of 11 models, GPT-o3's Smoke evaluation material constraint score dropped from 100.00 to 84.80 in a single day, pulling the main board from 100.00 to 93.16. The decline is likely due to small-sample volatility, but a potential model degradation cannot be ruled out yet.
In the YZ Index Smoke lightweight evaluation on June 19, 2026, Gemini 3.1 Pro topped the main leaderboard with 99.28 points, 100 in code execution, and 98.4 in material constraints. The weighted structure of 0.55× execution + 0.45× constraints highlights its dual-dimension balance advantage.
In today's YZ Index Smoke evaluation, Grok 4's Material Constraint score dropped from 96.70 to 71.10, a decrease of 25.6 points, but Code Execution rose from 66.70 to 100 points, lifting the overall leaderboard from 80.20 to 87 points.
Four models achieve perfect scores on both code execution and material constraint dimensions, while Grok 4 suffers a sharp 25.6-point drop in constraint, offsetting its execution gains and falling to the bottom.
In the WDCD three-round test, GPT-o3's collapse rate in the R3 phase reached 50%, while Qwen3 Max had zero collapses in R3. Both models scored 1.00 in R1 confirmation rate but showed vastly different integrity trajectories under sustained pressure.
Qwen3 Max scored 92.50 to top the WDCD Commitment Ranking, leading second-place Claude Sonnet 4.6 by 2.5 points, while Doubao Pro scored 62.50 to rank last among 11 models, trailing the champion by 30 points.
文心一言4.5's main leaderboard score dropped 10.4 points in a single day in the Smoke Evaluation, and the Task Expression dimension plummeted from 90 to 46.3. The decline is likely due to random sampling fluctuations rather than systematic capability degradation.
In the YZ Index Smoke evaluation, Qwen3 Max's Material Constraint score dropped from 100.00 to 71.10, a decline of 28.9 points. However, its main leaderboard score rose slightly by 0.8 points, indicating the fluctuation is likely due to test question sampling randomness rather than systematic capability degradation.
During the June 17, 2026 test of 11 models by YZ Index, Qwen3 Max's material constraint score dropped sharply from 100 points yesterday to 71.1 points, and its main leaderboard score was only 73.25 points, making it the most prominent anomaly of the day.
In the YZ Index June 2026 test of 11 models, the main ranking score of 豆包Pro dropped 9.9 points to 72.50, as code execution halved from 100.00 to 50.00. This single-day fluctuation may stem from random question draw, requiring further observation to determine degradation.
In the YZ Index June 2026 Smoke evaluation of 11 models, Claude Sonnet 4.6's code execution score dropped sharply from 100.00 to 50.00, causing its main score to fall from 79.44 to 72.50.
Claude Opus 4.7 scored 100 on the main leaderboard with perfect scores in code execution and material constraint, while nine models experienced a 50-point plunge in code execution.
In today's Smoke evaluation, Doubao Pro's Material Constraint score dropped from 84.80 to 60.80, while Code Execution surged from 38.40 to 100.00, with the main ranking score rising from 59.28 to 82.36, indicating that the extreme fluctuations are more likely due to question sampling probability rather than model capability degradation.
In today's Smoke evaluation on the YZ Index, Grok 4's material constraint score dropped from 83.00 to 61.30, a decline of 21.7 points, while code execution score rose from 80.90 to 100.00.
On June 15, 2026, the YZ Index main leaderboard for 11 models dropped collectively due to a sharp decline in Material Constraint scores, with a maximum drop of 39 points. Grok 4 remained first but saw its constraint fall to 61.3, close to the pass line.
Qwen3 Max leads the WDCD Compliance Leaderboard with 84.38 points. GPT-o3 ranks last with 67.19 points, trailing by 17.19 points.
Gemini 2.5 Pro's Smoke evaluation main score fell from 89.79 yesterday to 70.53 today, a drop of 19.3 points. The code execution dimension tumbled from 100.00 to 55.00, while the material constraint dimension rose from 77.30 to 89.50.
In the June 2026 YZ Index test of 11 models, Grok 4's Smoke evaluation code execution score dropped from 100.00 yesterday to 80.90, and its main ranking overall fell from 89.56 to 81.85.
In the three-day Smoke quick test from June 12 to June 14, 2026, Claude Opus 4.7 dropped 26.9 points from 96.83 to 69.91, making it the model with the largest decline. In contrast, GPT-5.5 was the only model showing an upward trend, with a trend value of +3.1.
