Claude

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Anthropic Claude OpenAI Claude Opus 5.5 Claude Sonnet 5 Claude Opus 5

Sunday, 9 August 2026

Quoting Claude Opus 5 system prompt

Simon Willison’s Weblog 2 months ago 37

Anthropic released Claude Fable 5 and Claude Mythos 5 on June 9, 2026, then suspended access to comply with U.S. Department of Commerce export controls on June 12, 2026. On July 1, 2026, Anthropic restored access after the controls were lifted on June 30, 2026. As a result, the Claude Opus 5 system prompt instructs the model to confirm the suspension and restoration factually and to direct readers to Anthropic’s notice for details.

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AI Policy Anthropic Model Releases Claude

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TLDRocket 20 October 2026

AI infrastructure is getting a very practical second act today: making agents faster to start, cheaper to run, and easier to govern once they’re running. Daytona, which sells an “agentic cloud” built around VMs for agent “computers,” raised $60 million in a Series B and landed at a $1 billion valuation, targeting 60-millisecond sandbox provisioning—an attempt to knock down the latency tax that makes agents feel sluggish between steps. IBM, Red Hat, and others also pushed llm-d framework 1.0, adding operational controls for in-house distributed inference, including multi-tenant QoS, zero-downtime upgrades, and router behavior measured on an agentic coding test that reportedly captured 97% cache reuse.

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Claude

Key players

Sunday, 9 August 2026

Quoting Claude Opus 5 system prompt

Every AI story that matters, in your inbox by 8am.

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