xAI Grok 4.6 Model Card - SecureCodeReview: leaderboard

xAI's internal SecureCodeReview is an agentic software-engineering eval scoring whether an agent fixes the security issues present in a realistic codebase and whether its patch avoids merging new ones. xAI Grok 4.6 model card (revised 2026-08-17), section 7.3 chart; reward in percent, higher is better; Grok runs in the Grok Build harness.

Metric: Reward (%). Source: media.x.ai. Saturation forecast: Around September 2027. 4 models tracked.

Top models

#ModelScoreOverall rank
1GPT-5.5 (xHigh)64.1#33 (GPT-5.5)
2Grok 4.6 (High)58.7#29 (Grok 4.6)
3GPT-5.6 Sol (Max)57.5#22 (GPT-5.6 Sol)
4Grok 4.5 (High)49.4#54 (Grok 4.5)

No result here: #3 Claude Opus 5.5, #6 GPT-6 Astra, #7 GPT-6.1 Sol.

Interactive version: theaggregate.ai/benchmark?slug=xai-grok-4-6-model-card-securecodereview · How It Works · Data refreshed daily, snapshot 2026-11-05.