# Can you spot the expensive AI?

> Source: <https://www.theblindtest.io/>
> Published: 2026-06-25 22:45:05+00:00

[GLM 5.2psst - it's freeYou can chat with](https://togetherai.link/?utm_source=theblindtest&utm_medium=referral&utm_campaign=example-app)vsClaude Opus 4.8

**GLM 5.2** right now, free, in Together Chat.Open Together Chat# Can you spot the *expensive* AI?

Two landing pages, same prompt. One came from a **cheap, open** model, the other a **pricey, closed** one that cost about **4.6× more**. Most people can't tell.

What it cost to build all 11 pages

Claude Opus 4.8$3.01

Same prompts, same pages. GLM 5.2 came out **4.6× cheaper** overall.