ZeroHour
AI model

GPT-5.6 Luna

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Replit expands access to software creation with GPT-5.6 Luna

Replit launches Free Mode powered by GPT-5.6 Luna, letting users build software without token costs.

Replit introduced Free Mode, powered by OpenAI's GPT-5.6 Luna model, expanding access to software creation. The offering lets anyone turn ideas into working software without worrying about token costs. The announcement came from OpenAI's news page, indicating a partnership between the two companies.

OpenAI News · 27d agoAI industry1

OpenAI, Anthropic, Google API Flaw Let Weaker AI Models Decode Stronger Models' Reasoning

Researchers show encrypted reasoning blocks in OpenAI, Anthropic, and Google APIs can be replayed to recover hidden reasoning and secrets like API keys.

Researchers demonstrated that encrypted reasoning objects from OpenAI, Anthropic, and Google reasoning APIs could be replayed across sessions, users, and models, letting weaker same-family models act as decoders of hidden reasoning. Across 6,708 public agent trajectories they decoded 315,320 thinking blocks and found 704 privacy artifacts from real user sessions, including 62 API keys, 33 passwords, 24 access tokens, and seven private keys. The replayable blocks also enabled invisible prompt-injection proof-of-concepts; the main extraction attack is no longer reproducible as of August 2026 following mitigations, though no vendor has publicly acknowledged the flaw.

The Hacker News · Aug 12, 2026AI safety & security1