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Claude Fable/Mythos Cost & Token Inspector icon

Claude Fable/Mythos Cost & Token Inspector

Track Claude Fable 5 & Mythos token costs. Monitor safety rerouting downgrades, quality scores & prompt rewriter in side panel.

Users0Current public install base
Rating--Store average score
Reviews0Public review volume
Manifest versionV3Extension platform version
7-day growth0Net users gained this week
7-day growth rate--Relative weekly velocity
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Version1.0.0
ManifestV3
Size135KiB
Languages1English (United States)
Published
Store updated
Last crawled
English (United States)
Overview

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Stop losing money on Claude Fable 5 & Mythos 5 premium token rates, and stop guessing when your prompts trigger hidden safety downgrades!

Claude Fable/Mythos Cost & Token Inspector is the ultimate premium Chrome Side Panel companion built specifically for Anthropic’s new frontier models. Claude Fable 5 is exceptionally powerful, but at $10/M input and $50/M output tokens (2x more expensive than Opus), keeping an eye on your budget is critical.

Furthermore, Fable 5’s strict safety classifiers automatically reroute flagged queries to older models (like Opus 4.8) in over 5% of sessions without a clear warning. This extension gives you 100% transparency over what model is running, how much it costs, and how your prompts perform!

🚀 KEY FEATURES FOR FABLE & MYTHOS USERS:

- 💸 Real-Time Fable/Mythos Cost Estimator: Instantly tracks the exact dollar ($) spend per message based on the new $10/$50 per million token rates.

- 🛡️ Safety Rerouting & Downgrade Tracker: Automatically alerts you via on-page banners if Anthropic’s input classifiers silently reroute your prompt to a backup model due to safety false-positives.

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