Ex-OpenAI dev tries GPT-5.6 Luna on Extra High: can't even find a link in the conversation

yuntiandeng · x · 2026-09-20

After running out of Codex usage, yuntiandeng tried GPT-5.6 Luna on the Extra High setting and was frustrated: the model couldn't even locate a link within their own conversation. He contrasts it with the awe he felt when GPT-3 could write code at all, wondering whether he's simply spoiled or whether Luna is genuinely that weak.

Original post →

More from Models

Models channel →