Codex 5.5 is AGI for me.
Before going to bed last night I asked Codex to autonomously fine-tune Qwen 3.5 4B model.
Created fresh Google Colab notebook Uploaded 145M JSONL dataset to Google Drive Pasted Colab notebook link in Codex Desktop App Asked it to train Qwen 3.5 4B using Unsloth It opened Colab using its Chrome Extension Connected to my Google Drive Downloaded Dataset from Drive Installed Unsloth Started running commands in sequence. Fixed all errors brilliantly. Completed all steps properly I woke up to this.
Interesting: Codex put itself to sleep for 30-minute interval via automation. (0 limit loss during 4-hour training cycle).
Codex’s chrome extension for computer use is amazing. It doesn’t eat context like other MCPs and it clicks fast.
I’m in love with this model. Worth $200.