

Tim Dettmers
The Quantisation Guy
bitsandbytes and QLoRA
Rating
86Impact score
Domains
QuantisationEfficient fine-tuningAccessible training
Scouting report
Worked out how to run and fine-tune large models in 8-bit and then 4-bit without wrecking them, shipped it as bitsandbytes, and followed with QLoRA — which put fine-tuning a 65B model on a single consumer GPU. His hardware guides are the reference for anyone deciding what to buy.
Curator’s note
Turned "you need a datacentre" into "you need one good GPU".
Portrait
Painted from a photograph of Tim Dettmers by Tim Dettmers, supplied by the subject.
Sources
- 01QLoRA: Efficient Finetuning of Quantized LLMs (2023) arxiv.org
- 02bitsandbytes github.com