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Fable5

Claude-focused token counter and API cost calculator

Free

About

Fable5 is a Claude-focused token counter and API cost calculator for Anthropic API users. It helps developers estimate token usage and costs before API requests, including input and output tokens, cache write/read costs, batch pricing, long-context planning, and Claude model pricing/spec comparisons.

Origin Story

By Fable5 team

The Problem

Claude API usage can become hard to estimate when prompts, long context, cache reads/writes, and batch pricing are involved. Fable5 was built to make those cost checks faster before sending requests.

Building It

Built as a focused Claude API utility and pricing reference.

What It Means

A small developer tool for estimating Claude token usage, API costs, cache read/write costs, and model pricing/spec tradeoffs.

The Dream

Help Claude API users make clearer cost decisions before production usage.

Pricing

ModelFree
Free tierAvailable

Category

Developer Tools

Problems Solved

  • Developer Utility Tools

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