Ollama vs Open WebUI
Comparing two open source alternatives to ChatGPT and Deepseek and Claude. Use the comparison below to decide which one fits your needs.

Ollama
MITGet up and running with Llama 3.3, DeepSeek-R1, Phi-4, Gemma 3, Mistral Small 3.1 and other large language models.
Side-by-side comparison
GitHub stars over time
GitHub stars over time
Ollama
Open WebUI152,991
Similar open source alternatives

Lobe Chat
Open-source AI chat and agent platform with multi-provider support, RAG, plugins, and an agent marketplace — self-hostable ChatGPT alternative.
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Onyx
Onyx is an open-source AI chat and enterprise search platform with RAG that works with every LLM. Bring your own model, connect your tools, and unify all your team's knowledge.
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Glean
GleanPi
Open-source AI agent toolkit with an interactive coding agent CLI, unified multi-provider LLM API, and TUI libraries.
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Claude
