Comparison
LeanCopilot vs open-webui
Verdict
Pick LeanCopilot when leanCopilot is primarily C++; open-webui is Python; pick open-webui when open-webui is primarily Python; LeanCopilot is C++.
Markdown twin · LeanCopilot alternatives · open-webui alternatives
GraphCanon updated today
vs
Trust & integrity
| Signal | LeanCopilot | open-webui |
|---|---|---|
| Maintenance | Active (20d since push) As of today · github_public_v1 | Very active (0d since push) As of 1d · github_public_v1 |
| Provenance | Not a fork · Organization account As of today · github_public_v1 | Not a fork · Organization account As of 1d · github_public_v1 |
| Security (OSV) | No lockfile As of today · none | No MCP manifest As of 1d · mcp_manifest |
Tagline
- LeanCopilot
- LLMs as Copilots for Theorem Proving in Lean
- open-webui
- User-friendly AI Interface (Supports Ollama, OpenAI API, ...)
Stars
- LeanCopilot
- 1.3k
- open-webui
- 145k
Forks
- LeanCopilot
- 126
- open-webui
- 21k
Open issues
- LeanCopilot
- 4
- open-webui
- 391
Language
- LeanCopilot
- C++
- open-webui
- Python
Adopt for
- LeanCopilot
- -
- open-webui
- Suitable for developers working with large language models who require a user-friendly interface and support for multiple APIs including Ollama and OpenAI.
Persona
- LeanCopilot
- -
- open-webui
- -
Runtime
- LeanCopilot
- -
- open-webui
- -
License
- LeanCopilot
- MIT
- open-webui
- Other
Last pushed
- LeanCopilot
- Jun 20, 2026
- open-webui
- Jul 10, 2026
Categories
- LeanCopilot
- Inference & Serving, LLM Frameworks
- open-webui
- Inference & Serving, LLM Frameworks
Trust and health
Maintenance
- LeanCopilot
- Active (82%)
- open-webui
- Very active (96%)
Days since push
- LeanCopilot
- 20d
- open-webui
- 0d
Open issues (now)
- LeanCopilot
- 4
- open-webui
- 391
Security scan
- LeanCopilot
- No lockfile
- open-webui
- No MCP manifest
Full report
- LeanCopilot
- Trust report
- open-webui
- Trust report
Choose LeanCopilot if…
- LeanCopilot is primarily C++; open-webui is Python.
- License: LeanCopilot is MIT, open-webui is Other.
- Tags unique to LeanCopilot: c++, formal-mathematics, lean, lean4.
When NOT to use LeanCopilot
- 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.
Choose open-webui if…
- open-webui is primarily Python; LeanCopilot is C++.
- License: open-webui is Other, LeanCopilot is MIT.
- Tags unique to open-webui: ai, openai, self-hosted.
- When you need to integrate multiple AI services, such as Ollama and OpenAI, into a unified user interface.
When NOT to use open-webui
- When looking for tooling that exclusively supports APIs other than Ollama and OpenAI, as these are specific areas of focus for open-webui.
- If the requirement is a highly specialized interface tailored to specific tasks rather than a general AI interaction platform.
Explore
Sources
Every stat on this page traces to a dated GitHub sync, license file, enrichment field, or trust scan.
- GitHub stars (lean-dojo/LeanCopilot) · observed Jul 11, 2026
- GitHub forks (lean-dojo/LeanCopilot) · observed Jul 11, 2026
- Last push (lean-dojo/LeanCopilot) · observed Jun 20, 2026
- License file (MIT) · observed Jul 11, 2026
- Trust scan (lockfile / OSV) · observed Jul 11, 2026
- GitHub stars (open-webui/open-webui) · observed Jul 11, 2026
- GitHub forks (open-webui/open-webui) · observed Jul 11, 2026
- Last push (open-webui/open-webui) · observed Jul 10, 2026
- License file (Other) · observed Jul 11, 2026
- Decision facts (enrichment) · observed Jul 11, 2026
- Trust scan (lockfile / OSV) · observed Jul 11, 2026
GitHub stars on cards: LeanCopilot 1.3k · open-webui 145k (synced Jul 11, 2026).
Common questions
- What is the difference between LeanCopilot and open-webui?
- LeanCopilot: LLMs as Copilots for Theorem Proving in Lean. open-webui: User-friendly AI Interface (Supports Ollama, OpenAI API, ...). See the comparison table for live GitHub stats and shared categories.
- When should I choose LeanCopilot over open-webui?
- Choose LeanCopilot over open-webui when LeanCopilot is primarily C++; open-webui is Python; License: LeanCopilot is MIT, open-webui is Other; Tags unique to LeanCopilot: c++, formal-mathematics, lean, lean4.
- When should I choose open-webui over LeanCopilot?
- Choose open-webui over LeanCopilot when open-webui is primarily Python; LeanCopilot is C++; License: open-webui is Other, LeanCopilot is MIT; Tags unique to open-webui: ai, openai, self-hosted; When you need to integrate multiple AI services, such as Ollama and OpenAI, into a unified user interface.
- When should I avoid LeanCopilot?
- 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.
- When should I avoid open-webui?
- When looking for tooling that exclusively supports APIs other than Ollama and OpenAI, as these are specific areas of focus for open-webui. If the requirement is a highly specialized interface tailored to specific tasks rather than a general AI interaction platform.
- Is LeanCopilot or open-webui more popular on GitHub?
- open-webui has more GitHub stars (145,029 vs 1,299). Stars measure visibility, not whether either tool fits your constraints.
- Are LeanCopilot and open-webui open source?
- Yes - both are open-source projects on GitHub (LeanCopilot: MIT, open-webui: Other).
- Where can I find alternatives to LeanCopilot or open-webui?
- GraphCanon lists graph-backed alternatives at LeanCopilot alternatives and open-webui alternatives (LeanCopilot markdown twin, open-webui 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, LeanCopilot or open-webui?
- LeanCopilot: Active. open-webui: 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 LeanCopilot and open-webui?
- GraphCanon publishes per-repo trust reports with dated maintenance, provenance, and scan summaries: LeanCopilot trust report; open-webui trust report.