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July 2026 newsletter

Simon Willison's Weblog
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The June 2026 newsletter for sponsors covers recent AI developments including tests of OpenAI and Anthropic models causing accidental cyberattacks, new model releases like GPT-5.6 variants and Claude Opus 5, as well as discussions on AI development and personal projects.
#ai-development#anthropic#claude-opus-5#gpt-5-6#openai

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