Comparison
litmus vs LLFn
Verdict
Pick litmus if litmus is an extensive GenAI application development platform for testing and evaluating LLM performance, featuring a user-friendly UI and deployment flexibility via CLI or manual setup; pick LLFn if lightweight, MIT-licensed Python framework for developing with Language Models.
Markdown twin · litmus alternatives · LLFn alternatives
GraphCanon updated Sep 20, 2026
9views this month
Trust & integrity
| Signal | litmus | LLFn |
|---|---|---|
| Maintenance | Slowing (164d since push) As of Sep 10, 2026 · github_public_v1 | Dormant (1112d since push) As of Aug 16, 2026 · github_public_v1 |
| Provenance | Not a fork · Organization account As of Sep 10, 2026 · github_public_v1 | Not a fork · Organization account As of Aug 16, 2026 · github_public_v1 |
| OSV dependency advisories | No lockfile (source not queried) As of Jul 15, 2026 · osv@v1 | No lockfile (source not queried) As of Jul 11, 2026 · osv@v1 |
| deps.dev advisories | Not queried deps.dev@v1 | Not queried deps.dev@v1 |
| OpenSSF Scorecard | Not queried openssf-scorecard@v1 | Not queried openssf-scorecard@v1 |
Tagline
- litmus
- A comprehensive LLM testing and evaluation tool for GenAI application development with user-friendly UI
- LLFn
- A lightweight framework for creating applications using LLMs
Stars
- litmus
- 52
- LLFn
- 96
Forks
- litmus
- 9
- LLFn
- 7
Open issues
- litmus
- 5
- LLFn
- 1
Language
- litmus
- Vue
- LLFn
- Python
Adopt for
- litmus
- Litmus is an extensive GenAI application development platform for testing and evaluating LLM performance, featuring a user-friendly UI and deployment flexibility via CLI or manual setup.
- LLFn
- Lightweight, MIT-licensed Python framework for developing with Language Models
Persona
- litmus
- -
- LLFn
- -
Runtime
- litmus
- -
- LLFn
- -
License
- litmus
- Apache-2.0
- LLFn
- MIT
Last pushed
- litmus
- Mar 29, 2026
- LLFn
- Jul 30, 2023
Categories
- litmus
- Evaluation & Observability, Model Training
- LLFn
- LLM Frameworks
Trust and health
Maintenance
- litmus
- Slowing (36%)
- LLFn
- Dormant (18%)
Days since push
- litmus
- 164d
- LLFn
- 1112d
Open issues (now)
- litmus
- 5
- LLFn
- 1
Stars delta
- litmus
- +1 (30d)
- LLFn
- 0 (30d)
Full report
- litmus
- Trust report
- LLFn
- Trust report
Choose litmus if…
- litmus is primarily Vue; LLFn is Python.
- License: litmus is Apache-2.0, LLFn is MIT.
- Tags unique to litmus: api, apitesting, cicd, devops.
- Also covers Evaluation & Observability, Model Training.
- When deploying on Google Cloud with the need for CLI ease of use
When NOT to use litmus
- In environments not using Google Cloud services and APIs
- When manual setup for each component outweighs potential benefits of automation provided by Litmus CLI
Choose LLFn if…
- LLFn is primarily Python; litmus is Vue.
- License: LLFn is MIT, litmus is Apache-2.0.
- Tags unique to LLFn: applications with llms, lightweight, python.
- Also covers LLM Frameworks.
- Ideal for prototyping and small-scale projects needing quick development cycles.
When NOT to use LLFn
- Avoid if requiring extensive customization or large-scale applications with complex scaling needs.
- Not recommended for teams prioritizing enterprise-level support and service features.
Explore
Sources
Every stat on this page traces to a dated GitHub sync, license file, enrichment field, or trust scan.
- GitHub stars (google/litmus) · observed Sep 20, 2026
- GitHub forks (google/litmus) · observed Sep 20, 2026
- Last push (google/litmus) · observed Mar 29, 2026
- License file (Apache-2.0) · observed Sep 20, 2026
- Decision facts (enrichment) · observed Jul 16, 2026
- Trust scan (lockfile / OSV) · observed Jul 15, 2026
- GitHub stars (orgexyz/LLFn) · observed Sep 20, 2026
- GitHub forks (orgexyz/LLFn) · observed Sep 20, 2026
- Last push (orgexyz/LLFn) · observed Jul 30, 2023
- License file (MIT) · observed Sep 20, 2026
- Decision facts (enrichment) · observed Jul 12, 2026
- Trust scan (lockfile / OSV) · observed Jul 11, 2026
GitHub stars on cards: litmus 52 · LLFn 96 (synced Sep 20, 2026).
Common questions
- What is the difference between litmus and LLFn?
- litmus: A comprehensive LLM testing and evaluation tool for GenAI application development with user-friendly UI. LLFn: A lightweight framework for creating applications using LLMs. See the comparison table for live GitHub stats and shared categories.
- When should I choose litmus over LLFn?
- Choose litmus over LLFn when litmus is primarily Vue; LLFn is Python; License: litmus is Apache-2.0, LLFn is MIT; Tags unique to litmus: api, apitesting, cicd, devops; Also covers Evaluation & Observability, Model Training; When deploying on Google Cloud with the need for CLI ease of use.
- When should I choose LLFn over litmus?
- Choose LLFn over litmus when LLFn is primarily Python; litmus is Vue; License: LLFn is MIT, litmus is Apache-2.0; Tags unique to LLFn: applications with llms, lightweight, python; Also covers LLM Frameworks; Ideal for prototyping and small-scale projects needing quick development cycles.
- When should I avoid litmus?
- In environments not using Google Cloud services and APIs When manual setup for each component outweighs potential benefits of automation provided by Litmus CLI
- When should I avoid LLFn?
- Avoid if requiring extensive customization or large-scale applications with complex scaling needs. Not recommended for teams prioritizing enterprise-level support and service features.
- Is litmus or LLFn more popular on GitHub?
- LLFn has more GitHub stars (96 vs 52). Stars measure visibility, not whether either tool fits your constraints.
- Are litmus and LLFn open source?
- Yes - both are open-source projects on GitHub (litmus: Apache-2.0, LLFn: MIT).
- Where can I find alternatives to litmus or LLFn?
- GraphCanon lists graph-backed alternatives at litmus alternatives and LLFn alternatives (litmus markdown twin, LLFn 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, litmus or LLFn?
- litmus: Slowing. LLFn: Dormant. 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 litmus and LLFn?
- GraphCanon publishes per-repo trust reports with dated maintenance, provenance, and scan summaries: litmus trust report; LLFn trust report.