head to head · open source
Open WebUI vs GPTCache
Open WebUI has 157,964 GitHub stars, 22,959 forks, 294 open issues and last shipped yesterday. GPTCache has 8,220 stars, 605 forks, 101 open issues and last shipped 2 months ago. Open WebUI leads on adoption by 1,822% (157,964 vs 8,220 stars). Open WebUI is written in Svelte under a custom or non-standard licence; GPTCache is written in Python under MIT. Open WebUI has attracted 15% as many forks as stars, GPTCache 7%. Open WebUI was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (llm), so they are genuine substitutes rather than adjacent tools.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
← all 20902 open source comparisons
Side by side
| Open WebUI | GPTCache | |
|---|---|---|
| GitHub stars | ★ 158K | ★ 8.2K |
| License | Custom / other | MIT |
| Written in | Svelte | Python |
| Last push | 2026-11-07 | 2026-09-22 |
| Forks | ⑂ 23K | ⑂ 605 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Open WebUI if
- You weight community size — 158K stars and counting
- You want the Custom / other license terms
- Your stack matches Svelte
- You value the larger contributor base for long-term maintenance
pick GPTCache if
- You want the GPTCache feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches Python
- You evaluated both and GPTCache fits your workflow better
About Open WebUI
Open WebUI 👋 Open WebUI is a home for AI , a self hosted AI platform that's extensible , feature rich , user friendly, and built to run entirely offline . With support for Ollama and OpenAI compatible APIs , it gives you a powerful, provider agnostic interface for both local and cloud based models. Passionate about open source AI? Join our team → [!TIP] Looking for an Enterprise Plan? – Speak with Our Sales Team Today! For more information, be sure to check out our Open WebUI Documentation. Key Features of Open WebUI ⭐ 🚀 Effortless Setup : Install seamlessly via pip, uv, Docker, or Kubernetes (kubectl…
read the full Open WebUI overview →
About GPTCache
GPTCache : A Library for Creating Semantic Cache for LLM Queries Slash Your LLM API Costs by 10x 💰, Boost Speed by 100x ⚡ 🎉 GPTCache has been fully integrated with 🦜️🔗LangChain ! Here are detailed usage instructions. 🐳 The GPTCache server docker image has been released, which means that any language will be able to use GPTCache! 📔 This project is undergoing swift development, and as such, the API may be subject to change at any time. For the most up to date information, please refer to the latest documentation and release note. NOTE: As the number of large models is growing explosively and their API shape…
read the full GPTCache overview →
More in AI & Machine Learning
Related comparisons
More AI Interaction & Interfaces projects
Compare either of these against the rest of the AI Interaction & Interfaces field.
Frequently asked questions
Is Open WebUI or GPTCache more popular?
Open WebUI has 157,964 GitHub stars and GPTCache has 8,220. Open WebUI has the larger community by that measure.
Are Open WebUI and GPTCache free?
Both are open source. Open WebUI has no licence declared in this registry, and GPTCache is licensed under MIT. Both are free to self-host.
What is the difference between Open WebUI and GPTCache?
Open WebUI is written in Svelte and GPTCache in Python. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, Open WebUI or GPTCache?
Choose Open WebUI if you want the larger community (157,964 stars) or its Custom / other licence terms. Choose GPTCache if its feature set, stack or MIT licence fits better. Both are self-hostable.