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![mark_k Avatar](https://lunarcrush.com/gi/w:24/cr:twitter::8721292.png) Mark Kretschmann [@mark_k](/creator/twitter/mark_k) on x 10.5K followers
Created: 2025-07-25 10:42:09 UTC

GPT-5 is a family of models:

GPT-5
GPT-5-Mini
GPT-5-Nano

Each with different cost / performance profiles. This is how @OpenAI can achieve serving the free tier with unlimited GPT-5 usage.


XXXXXX engagements

![Engagements Line Chart](https://lunarcrush.com/gi/w:600/p:tweet::1948695260340912336/c:line.svg)

**Related Topics**
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[open ai](/topic/open-ai)

[Post Link](https://x.com/mark_k/status/1948695260340912336)