cd /news/artificial-intelligence/can-you-tell-which-ai-generated-text… · home › topics › artificial-intelligence › article
[ARTICLE · art-103216] src=watermark-quiz.krishmatta.net ↗ pub= topic=artificial-intelligence verified=true sentiment=· neutral

Can you tell which AI-generated text is watermarked?

A new interactive quiz challenges users to distinguish between watermarked and non-watermarked AI-generated text, using Qwen2.5-32B-Instruct and SynthID-Text, the watermarking method behind Gemini and Claude. The quiz, created by Krish Matta, provides code, keys, prompts, and raw outputs in a public repository.

read1 min views10 publishedAug 19, 2026
Can you tell which AI-generated text is watermarked?
Image: source

Both texts below were generated by an LLM with the same prompt. One is watermarked, the other is not. Can you tell them apart?

…

Method #

Each pair was generated by Qwen2.5-32B-Instruct with identical sampling settings. Watermarking is done by SynthID-Text, the method behind both Gemini's and Claude's watermarks. Code, key, prompts, and all raw outputs are in the repo.

source & further reading
watermark-quiz.krishmatta.net — original article
── more in #artificial-intelligence 4 stories · sorted by recency
── more on @qwen2.5-32b-instruct 3 stories trending now
sponsored brought to you by zahid.host 4,200+ EU-deployed projects
reading about agents? ship yours in a single git push.

Run your AI side-project on zahid.host

EU-based hosting, git-push deploys, automatic HTTPS, no cold starts. Free tier with a custom domain — perfect for shipping the agent you just read about.

$git push zahid main
→ Live at https://your-agent.zahid.host ✓
Get free account → Pricing
from €0/mo · no card required
LIVE [news/can-you-tell-which-a…] indexed:0 read:1min 2026-08-19 · —