OpenAI Says GPT-5.6 Sol Can Autonomously Post-Train
The Decoder · rss · 2026-07-11
The Decoder reports that OpenAI's GPT-5.6 Sol can autonomously post-train a smaller Luna model on a 'fairly vague' prompt.
The report also notes:
- On OpenAI's internal Recursive Self-Improvement (RSI) benchmark, Sol scored 16.2 points higher than GPT-5.5.
- OpenAI believes an 'automated researcher' is becoming achievable.
This is news about model self-improvement capabilities and internal evaluation progress.
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