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Emergent Minds

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POST_253
[7 MIN]
[TRENDING]#llm

A Dial Worth Turning: Claude Opus 5's Prose, and the Style Guide Anthropic Wrote Against Its Own Model

Opus 5 writes 510 words where Opus 4.5 wrote 158, with 2.3 times the em dashes and twice the 'load-bearing'. Arena measured it, Hacker News named it, Reddit downgraded over it. Anthropic's answer arrived in Fable 5.1's prompting docs: a paragraph defining 'mannered prose', with the model's own tics as the examples, for you to paste into your prompt. The vendor wrote the style guide against its own model, and shipped it as your job.

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POST_259
[9 MIN]
[TRENDING]#llm

GPT-6 Astra Is On Every Plan: What It Costs, What It's Good At, and Which Effort Level to Use

OpenAI's GPT-6 Astra reached every paid ChatGPT plan, the API, Copilot and OpenRouter 27 hours after launch, at Fable 5.1's exact price. It sits two points behind Fable on the independent index at 42% of the cost per task, refuses exploit-writing by default, and hides its reasoning. I ran the same code review at low, high and max effort. Low found five real bugs in 60 seconds. Max found seven in seven minutes and got the ranking right.

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POST_255
[6 MIN]
[TRENDING]#llm

Two Meters: Claude Fable 5.1 Is Cheaper on the API and Hungrier on Max, and What to Turn Down

Anthropic says Fable 5.1 costs up to 45% less. Reddit says it empties a five-hour window in fifteen minutes. Both are true. The cache-read cut applies 'wherever usage is billed by token', and a subscription is not. Ten days of my own Claude Code transcripts show where the money goes, why the discount lands on one meter and the appetite on the other, and which dial to turn.

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