Comparison
chatllm.cpp vs open-webui
Verdict
Pick chatllm.cpp when chatllm.cpp is primarily C++; open-webui is Python; pick open-webui when open-webui is primarily Python; chatllm.cpp is C++.
Markdown twin · chatllm.cpp alternatives · open-webui alternatives
GraphCanon updated today
vs
Trust & integrity
| Signal | chatllm.cpp | open-webui |
|---|---|---|
| Maintenance | Very active (4d since push) As of today · github_public_v1 | Very active (0d since push) As of today · github_public_v1 |
| Provenance | Not a fork · Personal account As of today · github_public_v1 | Not a fork · Organization account As of today · github_public_v1 |
| Security (OSV) | No lockfile As of today · none | No MCP manifest As of today · mcp_manifest |
Tagline
- chatllm.cpp
- Pure C++ implementation of several models for real-time chatting on your computer (CPU & GPU)
- open-webui
- User-friendly AI Interface (Supports Ollama, OpenAI API, ...)
Stars
- chatllm.cpp
- 908
- open-webui
- 145k
Forks
- chatllm.cpp
- 71
- open-webui
- 21k
Open issues
- chatllm.cpp
- 11
- open-webui
- 391
Language
- chatllm.cpp
- C++
- open-webui
- Python
Adopt for
- chatllm.cpp
- -
- 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
- chatllm.cpp
- -
- open-webui
- -
Runtime
- chatllm.cpp
- -
- open-webui
- -
License
- chatllm.cpp
- MIT
- open-webui
- Other
Last pushed
- chatllm.cpp
- Jul 7, 2026
- open-webui
- Jul 10, 2026
Categories
- chatllm.cpp
- Inference & Serving, LLM Frameworks
- open-webui
- Inference & Serving, LLM Frameworks
Trust and health
Days since push
- chatllm.cpp
- 4d
- open-webui
- 0d
Open issues (now)
- chatllm.cpp
- 11
- open-webui
- 391
Owner type
- chatllm.cpp
- User
- open-webui
- Organization
Security scan
- chatllm.cpp
- No lockfile
- open-webui
- No MCP manifest
Full report
- chatllm.cpp
- Trust report
- open-webui
- Trust report
Choose chatllm.cpp if…
- chatllm.cpp is primarily C++; open-webui is Python.
- License: chatllm.cpp is MIT, open-webui is Other.
- Tags unique to chatllm.cpp: c++, llm-inference.
When NOT to use chatllm.cpp
- 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; chatllm.cpp is C++.
- License: open-webui is Other, chatllm.cpp 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 (foldl/chatllm.cpp) · observed Jul 11, 2026
- GitHub forks (foldl/chatllm.cpp) · observed Jul 11, 2026
- Last push (foldl/chatllm.cpp) · observed Jul 7, 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: chatllm.cpp 908 · open-webui 145k (synced Jul 11, 2026).
Common questions
- What is the difference between chatllm.cpp and open-webui?
- chatllm.cpp: Pure C++ implementation of several models for real-time chatting on your computer (CPU & GPU). 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 chatllm.cpp over open-webui?
- Choose chatllm.cpp over open-webui when chatllm.cpp is primarily C++; open-webui is Python; License: chatllm.cpp is MIT, open-webui is Other; Tags unique to chatllm.cpp: c++, llm-inference.
- When should I choose open-webui over chatllm.cpp?
- Choose open-webui over chatllm.cpp when open-webui is primarily Python; chatllm.cpp is C++; License: open-webui is Other, chatllm.cpp 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 chatllm.cpp?
- 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 chatllm.cpp or open-webui more popular on GitHub?
- open-webui has more GitHub stars (145,029 vs 908). Stars measure visibility, not whether either tool fits your constraints.
- Are chatllm.cpp and open-webui open source?
- Yes - both are open-source projects on GitHub (chatllm.cpp: MIT, open-webui: Other).
- Where can I find alternatives to chatllm.cpp or open-webui?
- GraphCanon lists graph-backed alternatives at chatllm.cpp alternatives and open-webui alternatives (chatllm.cpp 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, chatllm.cpp or open-webui?
- chatllm.cpp: Very 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 chatllm.cpp and open-webui?
- GraphCanon publishes per-repo trust reports with dated maintenance, provenance, and scan summaries: chatllm.cpp trust report; open-webui trust report.