11th January 2025 - Link Blog
Phi-4 Bug Fixes by Unsloth (via) This explains why I was seeing weird <|im_end|> suffexes during my experiments with Phi-4 the other day: it turns out the Phi-4 tokenizer definition as released by Microsoft had a bug in it, and there was a small bug in the chat template as well.
Daniel and Michael Han figured this out and have now published GGUF files with their fixes on Hugging Face.
Recent articles
- My fireside chat about agentic engineering at the Pragmatic Summit - 14th March 2026
- Perhaps not Boring Technology after all - 9th March 2026
- Can coding agents relicense open source through a “clean room” implementation of code? - 5th March 2026