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ai morning #61 — fable 5.1 ships, openai's astra found zero-days before release
Anthropic shipped Fable 5.1 with benchmark jumps bigger than the community expected. The system card quietly flagged a monitoring concern. Hours later, OpenAI previewed a model that chained two browser zero-days into a working exploit. Then a quiet Qwen upgrade took the top Code Arena slot overnight.
Marcus walks through what happened with Fable 5.1, why the science benchmark jump matters more than the coding numbers, and what it means for builders running long-horizon agentic workloads.
In this episode:
00:00 Intro
01:23 Fable 5.1: science doubles, cache 75% — Anthropic ships Fable 5.1 —…
The skinny
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