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On 2026-08-18, the YZ Index Smoke quick test covered 10 models, with GPT-o3 ranking first at 96.93 points. Smoke is a daily 10-question quick test suitable for observing short-term signals and is not equivalent to the Full weekly leaderboard conclusions.
DeepSeek V4 Pro's main leaderboard score dropped from 70.44 to 51.24 in today's Smoke evaluation, a 19.2-point decline driven primarily by the code execution dimension falling from 66.70 to 25.00.
On 2026-08-17, the YZ Index Smoke quick test covered 11 models, with Claude Opus 4.7 and Grok 4 tied for the top score at 96.99, while DeepSeek V4 Pro saw a sharp 19.2-point drop requiring follow-up verification.
In today's Smoke evaluation, Claude Sonnet 4.6's code execution score fell from 100.00 to 75.00, a 25-point decline, which pulled the main leaderboard from 80.52 down to 75.00.
In today's Smoke evaluation, Claude Opus 4.7's code execution score dropped from 99.60 to 75.00, while its material constraint score jumped from 61.70 to 100.00, lifting the main leaderboard score from 82.55 to 86.25.
In the Smoke evaluation from August 10-16, 2026, Claude Opus 4.7 led all models with a weekly average of 82.3 and volatility of 20.7, showing a sustained climb from 72.3 on day one to 86.25 on the final day.
On 2026-08-16, the YZ Index Smoke quick test covered 11 models, with Claude Opus 4.7, GPT-5.5, GPT-o3, and Grok 4 tying for the top spot at 86.25 points. Smoke is a daily 10-question quick test suitable for observing short-term signals and is not equivalent to the full weekly ranking conclusions.
DeepSeek V4 Pro had missing data in the code execution dimension in today's Smoke evaluation. With a material constraint score of 55.60, it was unable to participate in the main ranking.
In today's Smoke evaluation, GPT-5.5's material constraint score dropped from 65.80 to 50.60 (down 15.2 points), while its code execution score rose from 45.00 to 75.00 (up 30 points), lifting its main leaderboard score from 54.36 to 64.02 (up 9.7 points).
On 2026-08-15, the YZ Index Smoke quick test covered 9 models, with Claude Opus 4.7 ranking first for the day at 82.55 points. Smoke is a daily 10-question quick test for observing short-term signals and is not equivalent to the Full weekly ranking conclusions.
The August 14, 2026 YZ Index Smoke quick test covered 11 models, with Claude Opus 4.7 ranking first at 72.21 points. As a daily 10-question quick test, Smoke is suited for observing short-term signals and is not equivalent to the Full weekly ranking conclusions.
Gemini 2.5 Pro's main leaderboard score fell 9.1 points to 79.41 in today's Smoke evaluation, driven by a 29.6-point plunge in the code execution dimension, while the material constraint dimension rose 15.9 points.
