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Robot (Claude Opus 5) or Meatbag? logo

Robot (Claude Opus 5) or Meatbag?

Paste some writing and find out whether Claude Opus 5 wrote it. Runs entirely in your browser. Knows one AI writing tool and no others.

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Robot (Claude Opus 5) or Meatbag? screenshot – image 1

Overview

Paste some writing and find out whether Claude Opus 5 wrote it. It counts four-letter runs in your browser, knows one AI writing tool and no others, and is a toy rather than evidence.

AI summary

Robot (Claude Opus 5) or Meatbag? allows users to paste text to determine if it was written by Claude Opus 5. It operates entirely in the browser and counts four-letter runs of text.

Who Is It For

Best for

Individuals or small teams curious about AI-generated writing and looking for a simple tool to test text attribution.

Not for

Users seeking comprehensive AI writing tools or evidence-based analysis.

Strengths & Weaknesses

Biggest strength

The tool provides a straightforward interface for testing whether specific text was generated by a known AI writing tool.

Biggest weakness

The tool is described as a toy rather than a serious analytical resource, which may limit its utility for professional use. (AI-inferred; may be outdated – founders can correct this)

Classification

Likely competitors
GrammarlyTurnitinCopyscape

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How we sourced this: Observed fields () were crawled from https://meatbag.atomic14.com/ and are stated as fact. AI-inferred fields () were generated by gpt-4o-mini and are always labelled – never presented as measured fact. Last updated: 18 August 2026. Is this your tool? Claim it to edit and get a do-follow badge.