Why CEREBRO kept it

Fable tier model taxonomy: Opus 5.5, Astra, Sol

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Appeared in 1 briefing

• 2026-09-29

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Shares tags: ai/llm-mechanics · cerebro/signal

• We split one agent between a cloud planner and a local coder. Here's what it cost:reddit · 2026-09-29
• 400 LLM agents living together in an MMO server: what I learned about perception lag, fire-and-forget actions, and shedding loadreddit · 2026-09-29
• Coding Agents Build for the Grader They Imagine, Not the User: Speculative Reward Hacking in DeepSWEreddit · 2026-09-29
• Sonnet 5.5 improves on Sonnet 5 across benchmarks, in some cases dramatically. It’s a faster, lower-cost complement to Claude Opus 5.5, strongest at well-scoped everyday tasks, fixing bugs, and creatx · 2026-09-29
• A $200 Claude Code sub gets you ~$9,000 of Opus usage per month. I have managed to run 3 Claude accounts down to 0% since Opus 5.5 dropped. When analyzing their usage, costs were $2,086, $2,442, andx · 2026-09-29
• Sonnet 5.5 fixing a bug with Claude Code. 30% faster and 30% less usage. https://t.co/Vt1K1ubcFdx · 2026-09-29

Also from x.com

• Sonnet 5.5 improves on Sonnet 5 across benchmarks, in some cases dramatically. It’s a faster, lower-cost complement to Claude Opus 5.5, strongest at well-scoped everyday tasks, fixing bugs, and creatx · 2026-09-29
• A $200 Claude Code sub gets you ~$9,000 of Opus usage per month. I have managed to run 3 Claude accounts down to 0% since Opus 5.5 dropped. When analyzing their usage, costs were $2,086, $2,442, andx · 2026-09-29
• Sonnet 5.5 fixing a bug with Claude Code. 30% faster and 30% less usage. https://t.co/Vt1K1ubcFdx · 2026-09-29
• RT @ClaudeDevs: Claude can now help you build evaluations and hillclimb on them. In this article, we share guidance on eval design & skills that Claude Code can use to improve your applications.x · 2026-09-29
• Introducing Claude Sonnet 5.5, the second model in the Claude 5.5 family. It’s a clear upgrade over Sonnet 5, runs more than 30% faster, and costs up to 30% less for most work. https://t.co/UvXD8mDTFx · 2026-09-29
• Finally! This is great, now I can stop dropping CLAUDEmd files which just contain '@AGENTSmd'x · 2026-09-28