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Anthropic's Fable 5 'Extra effort' mode drains user limits excessively

By PulseAugur Editorial · [1 sources] ·

A user reported a significant bug with Anthropic's Fable 5 model, specifically within its 'Extra effort' mode. When attempting to correct errors in a text file, the model timed out, consuming the user's entire daily usage limit and a substantial portion of their weekly limit. The issue was exacerbated by the model continuing to drain weekly limits in the background even after the daily limit was exhausted, ultimately failing to complete the task and displaying a "You're out of usage credits" message. AI

IMPACT Potential for user frustration and loss of confidence in Anthropic's model reliability and billing accuracy.

RANK_REASON User-reported bug in a specific mode of an AI model.

Read on r/Anthropic →

AI-generated summary · Google Gemini · from 1 sources. How we write summaries →

Anthropic's Fable 5 'Extra effort' mode drains user limits excessively

How we ranked this

Signal score
0 / 100
Composite score across the factors below. Higher = stronger signal that this story matters right now.
Newsworthiness bucket
Tool
User-reported bug in a specific mode of an AI model.
Source corroboration
Single-source cluster
Only one publisher covered this so far. Single-source stories can still rank when the publisher is high-authority, but they lack cross-source corroboration.
Topics
product, other
Editorial topic classification. Feeds into how the story surfaces on /topic/<slug> hub pages and into the per-entity coverage mix.
AI-industry relevance
High
Clearly on-topic for AI-industry coverage.
Story freshness
45 days old
Aged out of breaking-news scoring windows; ranking reflects the durable signal from the full source set.

Full methodology in our editorial standards.

COVERAGE [1]

  1. r/Anthropic TIER_1 English(EN) · /u/Emil_Zakirov ·

    [Bug] Fable 5 'Extra effort' mode times out, instantly drains daily limits, and keeps eating weekly limits in the background

    <table> <tr><td> <a href="https://www.reddit.com/r/Anthropic/comments/1v5qt8p/bug_fable_5_extra_effort_mode_times_out_instantly/"> <img alt="[Bug] Fable 5 'Extra effort' mode times out, instantly drains daily limits, and keeps eating weekly limits in the background" src="https://…

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