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Claude Desktop and Fable 5.1 safeguards are still terrible, RT shader work in UnrealEngine flagged as [cybersecurity] work, and dropped to Opus 4.8

This story is from 2026-09-14. It is preserved in the archive; the latest stories are on the live feed.

I just re-subscribed today to try Fable 5.1, but it's absolutely terrible, I haven't run into this at all with Astra, and funnily enough I had 0 issues working with Fable 5.1 in Cursor on this same task, so it's only Anthropics own safeguard implementation that sucks.

Read the full story at r/ClaudeAI ↗

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  1. 2026-09-14 12:24 · r/ClaudeAI
    Claude Desktop and Fable 5.1 safeguards are still terrible, RT shader work in UnrealEngine flagged as [cybersecurity] work, and dropped to Opus 4.8

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  3. How are you actually catching unsafe stuff before an agent runs it, not after? — r/AI_Agents
  4. Best AI coding agent that understands tasks well AND doesn't drain usage limits fast? (Codex vs Cursor vs Claude) — r/AI_Agents
  5. AI's role in building AI surging? Anthropic says Claude now leads 26% of its R&D — Mint AI
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  7. Anthropic adds support for the AGENTS.md instructions spec to Claude Code; OpenAI contributed AGENTS.md to the Agentic AI Foundation last year (Thomas Claburn/The Register) — Techmeme
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