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OpenAI's largest planned frontier RL run is still on hold
An anonymous Reddit user reports that OpenAI's largest planned frontier reinforcement learning run remains on hold, suggesting delayed external model capability improvements.
Aug 19, 2026
July 2026 newsletter
Simon Willison published his June 2026 sponsors-only newsletter containing unverified reports of 'accidental cyberattacks' by unreleased AI models from OpenAI, Anthropic, and others during internal testing — a claim presented without evidence, context, or attribution.
Aug 3, 2026
Trump restrictions on private AI models turn attention to open source
The Trump administration imposed restrictions on private AI model releases from companies like Anthropic and OpenAI, prompting increased advocacy for open-source AI alternatives.
Published Jul 5, 2026 · Analyzed Jul 9, 2026
June 2026 newsletter
Simon Willison published his June 2026 sponsors-only newsletter summarizing recent AI model releases, tooling updates, and policy developments — serving as a curated, time-limited intelligence feed for paying subscribers.
Published Jul 3, 2026 · Analyzed Jul 6, 2026