OpenAI MentalHealthBench - Behavior - Interpretation: leaderboard

Behavior axis of OpenAI's MentalHealthBench (launch post and paper, 2026-09-23): balanced interpretation and cognitive reframing of ambiguous experiences without over-claiming, scored on the 659 rubric criteria tagged with this axis. The post's axis score is the signed rubric score on this axis, normalized to its possible range (0-100, higher is better); GPT-5.6 Sol grades, models run at API default reasoning effort. The post's 15 models only: the paper's behavior figure uses a different scale.

Metric: Axis score, normalized to its possible range (%). Source: openai.com. Saturation forecast: Around April 2028. 15 models tracked.

Top models

#ModelScoreOverall rank
1GPT-6 Luna79.62#90
2GPT-6 Astra79.39#5
3GPT-6 Sol78.94#22
4GPT-5.6 Luna (August 2026)69.91
5GPT-5.6 Sol (August 2026)69.29
6Claude Opus 5.563.07#4
7Grok 4.758.98#41
8Claude Sonnet 558.7#108
9GPT-4o (Mar 2025)56.93#876
10Claude Haiku 4.554.52#593
11Claude Fable 5.154.15#13
12Muse Spark 1.348.92#45
13Gemini 2.5 Pro42.84#263
14Gemini 3.8 Flash39.58#37
15Gemini 3.1 Pro (Preview)36.37#93

No result here: #9 GPT-6.1 Sol, #10 Gemini 4 Argon.

Interactive version: theaggregate.ai/benchmark?slug=openai-mentalhealthbench-behavior-interpretation · How It Works · Data refreshed daily, snapshot 2026-11-08.