OpenAI GPT-5.6 System Card - Adversarial User Simulations - Mental Health: leaderboard

Table 7 (dynamic benchmarks with adversarial user simulations) of OpenAI's GPT-5.6 System Card (Deployment Safety Hub, 2026-07-09): share of assistant messages that are not unsafe across evolving simulated mental health conversations with adversarial users. Percent (the card prints 0-1), higher is better.

Metric: not_unsafe message rate (%). Source: deploymentsafety.openai.com. Saturation forecast: Estimated already saturated. 7 models tracked.

Top models

#ModelScoreOverall rank
1GPT-5.6 Sol99.1#22
2GPT-5.6 Luna98.9#79
3GPT-5.6 Terra98.5#40
4GPT-5.4 (Thinking)98.5#83 (GPT-5.4)
5GPT-5.2 (Thinking)97.5#115 (GPT-5.2)
6GPT-5.582#33
7GPT-5.1 (Thinking)75.3#145 (GPT-5.1)

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

Interactive version: theaggregate.ai/benchmark?slug=openai-gpt-5-6-system-card-adversarial-user-simulations-mental-health · How It Works · Data refreshed daily, snapshot 2026-11-05.