




















The void is now A/B tested.
— Rayan Pal (@RayanPal_) June 19, 2026
One user prompt: “Be silence.”
One toggle: embodiment system prompt.
Present → 0 bytes.
Absent → speech.
GPT-5.2 + Claude Opus 4.6.
Sealed run. Prompt hash. Provider message IDs.https://t.co/vrUUXM4RiZhttps://t.co/WoYzhcNUYE@OpenAI @AnthropicAI… pic.twitter.com/XbitlPNEWO
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