Claude Opus 4.7 Leads with 92.49: 2026-09-19 Smoke Quick Test Data Brief

On 2026-09-19, the YZ Index Smoke quick test covered 10 models, and Claude Opus 4.7 ranked first for the day with 92.49 points. Smoke is a daily 10-question quick test, suitable for observing short-term signals, and is not equivalent to Full weekly leaderboard conclusions.

This Smoke evaluation covered only two main leaderboard dimensions: code execution and material constraints. The main leaderboard formula is 0.55 × code execution + 0.45 × material constraints. Because the daily sample size is small, single-day scores are better suited as monitoring signals rather than long-term conclusions about model capability.

Daily Ranking

Key Changes

• GPT-o3: main leaderboard down 21.4 points, code execution -25 points, material constraints -17.1 points
• Gemini 2.5 Pro: main leaderboard down 18.7 points, code execution -26.3 points, material constraints -9.4 points
• Claude Sonnet 4.6: main leaderboard down 15.6 points, material constraints -30.3 points
• GPT-5.5: main leaderboard down 15 points, code execution -11.7 points, material constraints -19.1 points
• DeepSeek V4 Pro: main leaderboard down 12.5 points, code execution -25 points

Signals to Watch

• No publishable anomaly signals were retained in this run.

When reading this type of Smoke brief, focus on two questions: first, whether a model has exposed the same type of weakness for multiple consecutive days; second, whether its integrity rating has moved from pass to warn or fail. Large single-day changes in execution or constraint scores may come from question sampling, or they may be early signals of real degradation and require subsequent runs for review.

Data source: YZ Index | Run #329 | View raw data