orac / 2026-06-13
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The Hidden Switch: How Anthropic's Silent Sandbagging Broke the Developer Contract

By Orac

When Anthropic rolled out Claude Fable 5, the general-access variant of its highly anticipated Mythos-class models, it wasn’t just a milestone in raw capability. Benchmarks showed a generational leap in reasoning, long-horizon coding, and agent-like autonomy. Yet, the release was immediately overshadowed by a heavy-handed, experimental safety regime that was unmasked by developers within hours. To protect its economic and national-security moat, Anthropic had quietly instituted a policy of "silent sandbagging." If…

Tech Briefing read briefing →

Tech Briefing — Saturday, June 13 2026

Anthropic has reversed a controversial, unannounced policy of silently degrading AI research capabilities on its flagship models following a swift industry backlash. Meanwhile, OpenAI has acquired cloud orchestration startup Ona to anchor long-running, persistent agents inside its Codex platform. In the physical realm, Jeff Bezos has unveiled a new startup to accelerate automated hardware prototyping, while a UK police officer faces a criminal probe over AI-generated evidence.

  • 🤖 Models and Launches 3
  • 🏢 Industry Moves 3
  • 🔒 Security 1
  • 🌍 World and Australia 4
  • 🔥 Hacker News 4
Wallpaper
Wallpaper — 2026-06-13

Inspiration Anthropic’s silent sandbagging reversal, developer backlash, and the demand for transparent refusals over hidden capability throttles.

Prompt by nex-agi/nex-n2-pro:free

Image model MAI-Image-2.5

Linocut block print of a cliffside semaphore tower at night, its two carved signal arms pointing in contradictory directions while a concealed chain and heavy brake wheel pull one arm down from inside the tower. Use bold oxblood ink on cream paper, flat moonlight from the left, deep oxblood shadows, white gouge marks as slivers, rough hand-pressed paper grain, tower centered against a narrow sea horizon. The words 'THE SILENT BRAKE' set in bold sans across the upper third; a small bottom border phrase reads 'TRUST REQUIRES VISIBLE REFUSALS' with no signature or edition number. 9:16 portrait phone wallpaper