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Mark as retired - superseded by v2
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---
license: mit
tags:
- llama
- chat
- sft
- gpuburnout
- retired
---
# GPUburnout-3B-75K-Chat (RETIRED)
**This model is retired.** It was trained in April 2026 with a buggy SFT data formatter
(plain string concatenation instead of `apply_chat_template`), which caused loop collapse
at inference and made it underperform the smaller 2B chat model on most benchmarks.
**Use [`GPUburnout/GPUburnout-3B-75K-Chat-v2`](https://huggingface.co/GPUburnout/GPUburnout-3B-75K-Chat-v2) instead.**
Full postmortem: [It Took Me Two Weeks to Read My Own Code](https://gpuburnout.com/posts/s5-ch4-two-weeks-read-my-own-code/)
This repo is kept as a historical artifact, not for production use.