In the Smoke quick test from June 17 to 21, 2026, Grok 4 rose from 80.2 on the first day to 100 on the last day, a trend increase of 19.8 points, leading the weekly report. The Gemini series showed volatility exceeding 28 points.
On 2026-06-21, the Smoke Lightweight Evaluation shows that four models — DeepSeek V4 Pro, Gemini 3.1 Pro, GPT-o3, and Grok 4 — all achieved 100 points in the main leaderboard, code execution, and material constraint scores, forming a perfect match between execution and constraint.
In the June 2026 YZ Index testing of 11 models, ERNIE Bot 4.5 Smoke's main ranking score dropped from 93.25 to 71.02, a single-day decline of 22.2 points.
GPT-5.5’s mainboard score in today’s Smoke evaluation dropped 20.5 points, driven by a 50-point plunge in code execution, though analysis attributes the fluctuation to random question draws rather than model degradation.
In the Smoke lightweight evaluation on June 20, 2026, GPT-5.5's main score dropped from 93 to 72.5 compared to yesterday, its execution score fell directly from 100 to 50, and its constraint score also declined from 115.5 to 100.
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.
ERNIE Bot 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 Doubao 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.
