# Using AI to check weight meets requirements

Digest AI · Marketing & Small Business · published 2026-11-05T05:50:00Z

Canonical: https://digestai.news/story/using-ai-to-check-weight-meets-requirements

## Summary

I tested three AI assistants—ChatGPT, Gemini, and Claude—to determine if two packs of Costco's Salted Mackerel Fillets met a specified requirement of 2.32kg. I sent them the same photo of the order screen in the app and the products on the shelf along with the question 'Is this enough weight?' Each AI gave a different answer: ChatGPT said yes, Gemini said no due to a discount sticker, and Claude provided an accurate total price but noted the expiration date was tomorrow. After fact-checking, I confirmed that two packs were indeed short by 27g (1.2%) of the required weight. This method saved me from needing a calculator or typing in the numbers myself.

## Key points

- ChatGPT judged the weights as 1.145kg x 2, resulting in 2.29kg
- Gemini concluded it was 'about 12g short' and identified the items as discounted
- Claude calculated the total price correctly but noted the expiration date

## Why it matters

This article highlights the importance of verifying AI judgments with physical checks, especially for critical applications like grocery shopping.

## Sources

1. [If you're going to use AI for Uber Eats shopping services, this is the best way—I asked ChatGPT, Gemini, and Claude the same question with the same photo: 'Is this enough](https://note.com/regal_flax881/n/nc008a8533848?hl=en) (note.com, 2026-11-05)

## Cite

Digest AI, "Using AI to check weight meets requirements", 5 November 2026, https://digestai.news/story/using-ai-to-check-weight-meets-requirements

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