Comparison
JetStream vs LlamaFactory
Verdict
Pick JetStream when tags unique to JetStream: gpu, inference, jax, llama; pick LlamaFactory when tags unique to LlamaFactory: agent, ai, deepseek, fine-tuning.
Markdown twin · JetStream alternatives · LlamaFactory alternatives
GraphCanon updated today
vs
Trust & integrity
| Signal | JetStream | LlamaFactory |
|---|---|---|
| Maintenance | Slowing (186d since push) As of today · github_public_v1 | Very active (0d since push) As of today · github_public_v1 |
| Provenance | Not a fork · Organization account As of today · github_public_v1 | Not a fork · Personal account As of today · github_public_v1 |
| Security (OSV) | No lockfile As of today · none | No lockfile As of today · none |
Tagline
- JetStream
- JetStream is a throughput and memory optimized engine for LLM inference on XLA devices, starting with TPUs (and GPUs in future -- PRs welcome).
- LlamaFactory
- Unified Efficient Fine-Tuning of 100+ LLMs & VLMs
Stars
- JetStream
- 451
- LlamaFactory
- 73k
Forks
- JetStream
- 66
- LlamaFactory
- 8.9k
Open issues
- JetStream
- 25
- LlamaFactory
- 1.1k
Language
- JetStream
- Python
- LlamaFactory
- Python
Adopt for
- JetStream
- -
- LlamaFactory
- 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
- JetStream
- -
- LlamaFactory
- -
Runtime
- JetStream
- -
- LlamaFactory
- -
License
- JetStream
- Apache-2.0
- LlamaFactory
- Apache-2.0
Last pushed
- JetStream
- Jan 5, 2026
- LlamaFactory
- Jul 10, 2026
Categories
- JetStream
- Inference & Serving, LLM Frameworks, Model Training
- LlamaFactory
- LLM Frameworks, Model Training
Trust and health
Maintenance
- JetStream
- Slowing (36%)
- LlamaFactory
- Very active (96%)
Days since push
- JetStream
- 186d
- LlamaFactory
- 0d
Open issues (now)
- JetStream
- 25
- LlamaFactory
- 1.1k
Owner type
- JetStream
- Organization
- LlamaFactory
- User
Full report
- JetStream
- Trust report
- LlamaFactory
- Trust report
Choose JetStream if…
- Tags unique to JetStream: gpu, inference, jax, llama.
- Also covers Inference & Serving.
- Leaner open-issue backlog (25).
When NOT to use JetStream
- Last GitHub push was 187 days ago (slowing maintenance, Jan 5, 2026). Validate activity before betting a new project on JetStream.
- 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.
Choose LlamaFactory if…
- Tags unique to LlamaFactory: agent, ai, deepseek, fine-tuning.
- When you need to fine-tune over 100 different LLMs or VLMs with efficient methods like LoRA or QLoRA.
- More GitHub stars (73k vs 451) - visibility, not fit.
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
Explore
Sources
Every stat on this page traces to a dated GitHub sync, license file, enrichment field, or trust scan.
- GitHub stars (AI-Hypercomputer/JetStream) · observed Jul 11, 2026
- GitHub forks (AI-Hypercomputer/JetStream) · observed Jul 11, 2026
- Last push (AI-Hypercomputer/JetStream) · observed Jan 5, 2026
- License file (Apache-2.0) · observed Jul 11, 2026
- Trust scan (lockfile / OSV) · observed Jul 11, 2026
- GitHub stars (hiyouga/LlamaFactory) · observed Jul 11, 2026
- GitHub forks (hiyouga/LlamaFactory) · observed Jul 11, 2026
- Last push (hiyouga/LlamaFactory) · observed Jul 10, 2026
- License file (Apache-2.0) · observed Jul 11, 2026
- Decision facts (enrichment) · observed Jul 11, 2026
- Trust scan (lockfile / OSV) · observed Jul 11, 2026
GitHub stars on cards: JetStream 451 · LlamaFactory 73k (synced Jul 11, 2026).
Common questions
- What is the difference between JetStream and LlamaFactory?
- JetStream: JetStream is a throughput and memory optimized engine for LLM inference on XLA devices, starting with TPUs (and GPUs in future -- PRs welcome).. LlamaFactory: Unified Efficient Fine-Tuning of 100+ LLMs & VLMs. See the comparison table for live GitHub stats and shared categories.
- When should I choose JetStream over LlamaFactory?
- Choose JetStream over LlamaFactory when Tags unique to JetStream: gpu, inference, jax, llama; Also covers Inference & Serving; Leaner open-issue backlog (25).
- When should I choose LlamaFactory over JetStream?
- Choose LlamaFactory over JetStream when Tags unique to LlamaFactory: agent, ai, deepseek, fine-tuning; When you need to fine-tune over 100 different LLMs or VLMs with efficient methods like LoRA or QLoRA; More GitHub stars (73k vs 451) - visibility, not fit.
- When should I avoid JetStream?
- Last GitHub push was 187 days ago (slowing maintenance, Jan 5, 2026). Validate activity before betting a new project on JetStream. 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 JetStream or LlamaFactory more popular on GitHub?
- LlamaFactory has more GitHub stars (73,157 vs 451). Stars measure visibility, not whether either tool fits your constraints.
- Are JetStream and LlamaFactory open source?
- Yes - both are open-source projects on GitHub (JetStream: Apache-2.0, LlamaFactory: Apache-2.0).
- Where can I find alternatives to JetStream or LlamaFactory?
- GraphCanon lists graph-backed alternatives at JetStream alternatives and LlamaFactory alternatives (JetStream markdown twin, LlamaFactory markdown twin), 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 mirrors this page for agents and LLM crawlers, with the same stats table and FAQ answers.
- Which is better maintained, JetStream or LlamaFactory?
- JetStream: Slowing. 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 JetStream and LlamaFactory?
- GraphCanon publishes per-repo trust reports with dated maintenance, provenance, and scan summaries: JetStream trust report; LlamaFactory trust report.