--- title: "pmetal vs LlamaFactory" type: "comparison" canonical_url: "https://www.graphcanon.com/compare/epistates-pmetal-vs-hiyouga-llamafactory" tools: ["epistates-pmetal", "hiyouga-llamafactory"] --- # pmetal vs LlamaFactory *GraphCanon updated Jul 15, 2026* ## Verdict Pick pmetal when pmetal is primarily Rust; LlamaFactory is Python; pick LlamaFactory when llamaFactory is primarily Python; pmetal is Rust. [pmetal](https://pmetal.io) reports 303 GitHub stars, 22 forks, and 7 open issues, last pushed Jun 5, 2026. [LlamaFactory](https://llamafactory.readthedocs.io) has 73k stars, 8.9k forks, and 1.1k open issues, last pushed Jul 10, 2026. Figures are from public GitHub metadata via [pmetal's repository](https://github.com/Epistates/pmetal) and [LlamaFactory's repository](https://github.com/hiyouga/LlamaFactory). | | [pmetal](/tools/epistates-pmetal.md) | [LlamaFactory](/tools/hiyouga-llamafactory.md) | | --- | --- | --- | | Tagline | PMetal: high-performance Apple Silicon framework for local LLM inference, LoRA/QLoRA fine-tuning, serving, quantization, and MLX/Metal acceleration. | Unified Efficient Fine-Tuning of 100+ LLMs & VLMs | | Stars | 303 | 73,157 | | Forks | 22 | 8,937 | | Open issues | 7 | 1,067 | | Language | Rust | Python | | Adopt for | - | LlamaFactory is a sophisticated tool for fine-tuning numerous large language models and visual language models efficiently using various methods such as LoRA, QLoRA, RLHF, and quantization. | | Persona | - | - | | Runtime | - | - | | License | Other | Apache-2.0 | | Categories | Inference & Serving, LLM Frameworks, Model Training | LLM Frameworks, Model Training | ## Trust and health _Sourced signals - not a safety guarantee. No winner column._ | | [pmetal](/tools/epistates-pmetal.md) | [LlamaFactory](/tools/hiyouga-llamafactory.md) | | --- | --- | --- | | Maintenance | Steady (60%) | Very active (96%) | | Days since push | 39d | 0d | | Open issues (now) | 7 | 1.1k | | Owner type | Organization | User | | Full report | [trust report](/tools/epistates-pmetal/trust.md) | [trust report](/tools/hiyouga-llamafactory/trust.md) | ## Decision facts: LlamaFactory - **Adopt for:** LlamaFactory is a sophisticated tool for fine-tuning numerous large language models and visual language models efficiently using various methods such as LoRA, QLoRA, RLHF, and quantization. ## Choose when ### Choose pmetal if… - pmetal is primarily Rust; LlamaFactory is Python. - License: pmetal is Other, LlamaFactory is Apache-2.0. - Tags unique to pmetal: ane, apple-silicon, deep-learning, distillation. - Also covers Inference & Serving. ### Choose LlamaFactory if… - LlamaFactory is primarily Python; pmetal is Rust. - License: LlamaFactory is Apache-2.0, pmetal is Other. - Tags unique to LlamaFactory: agent, deepseek, gemma, gpt. - When you need to fine-tune over 100 different LLMs or VLMs with efficient methods like LoRA or QLoRA. ## When NOT to use pmetal - Inference & Serving: Self-hosting rarely beats a hosted API on cost until you have steady, high-volume traffic. - LLM Frameworks: Avoid a framework for a single prompt-and-retrieve call; the abstraction can cost more than it saves. - Model Training: Try prompting and RAG first; fine-tuning is the answer to style/format, not missing knowledge. ## When NOT to use LlamaFactory - When you are looking to fine-tune less popular or niche models that are not supported within the 100+ models covered by LlamaFactory. - If your project specifically requires custom fine-tuning methods not available in this repository, such as certain versions of PEFT (Parameter Efficient Fine-Tuning) techniques excluding LoRA and QLoa ## Common questions ### What is the difference between pmetal and LlamaFactory? pmetal: PMetal: high-performance Apple Silicon framework for local LLM inference, LoRA/QLoRA fine-tuning, serving, quantization, and MLX/Metal acceleration.. LlamaFactory: Unified Efficient Fine-Tuning of 100+ LLMs & VLMs. See the comparison table for live GitHub stats and shared categories. ### When should I choose pmetal over LlamaFactory? Choose pmetal over LlamaFactory when pmetal is primarily Rust; LlamaFactory is Python; License: pmetal is Other, LlamaFactory is Apache-2.0; Tags unique to pmetal: ane, apple-silicon, deep-learning, distillation; Also covers Inference & Serving. ### When should I choose LlamaFactory over pmetal? Choose LlamaFactory over pmetal when LlamaFactory is primarily Python; pmetal is Rust; License: LlamaFactory is Apache-2.0, pmetal is Other; Tags unique to LlamaFactory: agent, deepseek, gemma, gpt; When you need to fine-tune over 100 different LLMs or VLMs with efficient methods like LoRA or QLoRA. ### When should I avoid pmetal? Inference & Serving: Self-hosting rarely beats a hosted API on cost until you have steady, high-volume traffic. LLM Frameworks: Avoid a framework for a single prompt-and-retrieve call; the abstraction can cost more than it saves. Model Training: Try prompting and RAG first; fine-tuning is the answer to style/format, not missing knowledge. ### When should I avoid LlamaFactory? When you are looking to fine-tune less popular or niche models that are not supported within the 100+ models covered by LlamaFactory. If your project specifically requires custom fine-tuning methods not available in this repository, such as certain versions of PEFT (Parameter Efficient Fine-Tuning) techniques excluding LoRA and QLoa ### Is pmetal or LlamaFactory more popular on GitHub? LlamaFactory has more GitHub stars (73,157 vs 303). Stars measure visibility, not whether either tool fits your constraints. ### Are pmetal and LlamaFactory open source? Yes - both are open-source projects on GitHub (pmetal: Other, LlamaFactory: Apache-2.0). ### Where can I find alternatives to pmetal or LlamaFactory? GraphCanon lists graph-backed alternatives at [pmetal alternatives](/tools/epistates-pmetal/alternatives) and [LlamaFactory alternatives](/tools/hiyouga-llamafactory/alternatives) ([pmetal markdown twin](/tools/epistates-pmetal/alternatives.md), [LlamaFactory markdown twin](/tools/hiyouga-llamafactory/alternatives.md)), ranked by typed relationship edges rather than popularity votes. ### Is there a machine-readable version of this comparison? Yes. The markdown twin at [this comparison](/compare/epistates-pmetal-vs-hiyouga-llamafactory.md) mirrors this page for agents and LLM crawlers, with the same stats table and FAQ answers. ### Which is better maintained, pmetal or LlamaFactory? pmetal: Steady. LlamaFactory: Very active. Compare maintenance labels, days since push, and release cadence in the trust section below - stars alone do not measure maintenance. ### Where are the full trust reports for pmetal and LlamaFactory? GraphCanon publishes per-repo trust reports with dated maintenance, provenance, and scan summaries: [pmetal trust report](/tools/epistates-pmetal/trust); [LlamaFactory trust report](/tools/hiyouga-llamafactory/trust). --- **Machine-readable endpoints** - JSON: [`/api/graphcanon/graph?tool=epistates-pmetal`](/api/graphcanon/graph?tool=epistates-pmetal) - LLM index: [/llms.txt](/llms.txt) - Full corpus: [/llms-full.txt](/llms-full.txt) _GraphCanon - The knowledge graph for AI development. https://www.graphcanon.com/_