Fine-tuningOpen Source✦ Free Tier

Unsloth

2× faster, 70% less memory LoRA fine-tuning

32,000 stars● Health 95/100 — Active· commit recency (40 pts) · star momentum (30 pts) · issue ratio (20 pts) · forks (10 pts)App Infrastructure

About

Dramatically speeds up LoRA and QLoRA fine-tuning by rewriting GPU kernels. Compatible with HuggingFace and works with Llama, Mistral, Gemma, and more. No accuracy loss.

Choose Unsloth when…

  • You want the fastest OSS LoRA fine-tuning with minimal GPU memory
  • You're fine-tuning Llama, Mistral, or Gemma models
  • Memory constraints are the bottleneck in your training setup

Builder Slot

How do you adapt models to your domain?Optional for most stacks

Fine-tuning frameworks and platforms for training custom model adaptations with LoRA, QLoRA, or full fine-tuning

Dev Tools
Not applicable
App Infra
Optional
Hybrid
Optional

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Stack Genome Detection

AIchitect's Genome scanner detects Unsloth in your project via these signals:

pip packages
unslothunsloth_zoo

Integrates with (1)

vLLMLLM Infrastructure

Unsloth exports fine-tuned models in GGUF or HuggingFace format, both of which vLLM serves natively.

Train fast with Unsloth, serve fast with vLLM — same model file, no conversion required.

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Alternatives to consider (4)

Pricing

✦ Free tier available
Pro$29/mo

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In 1 stack

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Unsloth on AIchitect[![Unsloth](https://www.aichitect.dev/badge/tool/unsloth)](https://www.aichitect.dev/tool/unsloth)

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