1
Onyx
github.com/onyx-dot-app/onyxAlso covers ai chat and self hosted
Onyx provides open-source AI chat that can work with different language models.
Alternatives
The Best Odysseus Alternatives in 2026
24 alternatives2 free · 10 open source
Looking for something like Odysseus? Here are 24 alternatives, ranked by how closely they match it on purpose, features and platforms. Of these, 2 are free or have a free plan and 10 are open source.
Odysseus provides a self hosted AI workspace with chat, agents, tools, model serving, email, and research.
Top picks at a glance
First suggestionOnyxOnyx provides open-source AI chat that can work with…Free or freemium optionnanobotBuild personal AI agents with nanobot, a self-hosted Python…Open source optionEnclaveEnclave explores a virtual world for AI companionship and…
Quick comparison
| # | Alternative | Pricing | Open source | Platforms |
|---|---|---|---|---|
| 1 | Onyx | — | Not stated | — |
| 2 | Enclave | — | Yes | — |
| 3 | Merlin | — | Not stated | Android, Browser extension, iOS |
| 4 | Anything Llm | — | Yes | — |
| 5 | Thena | — | Not stated | Web |
| 6 | Open WebUI | — | Yes | Web |
| 7 | ChatSonic | — | Not stated | Web |
| 8 | nanobot | Free | Yes | — |
| 9 | Chatbox | — | Not stated | Android, iOS, Web |
| 10 | DocsGPT | — | Yes | Linux, macOS, Web |
All Odysseus alternatives
2
Also covers ai chat and self hosted
Enclave explores a virtual world for AI companionship and social interaction.
3
Merlin
getmerlin.inAlso covers ai chat
Merlin offers an AI chat interface for accessing models such as ChatGPT and Gemini to research, write, code, and create images.
4
Also covers self hosted
AnythingLLM is a local-first platform for using AI agents and language models in a self-managed workspace.
5
Thena
thena.aiAlso covers ai chat
Thena provides customer-support ticketing and AI chat for B2B teams across Slack, email, and web chat.
6
Also covers self hosted
Open WebUI provides a self hosted platform for connecting AI models and extending the interface with code.
7
ChatSonic
writesonic.com/chatAlso covers ai chat
ChatSonic combines AI chat with marketing workflows, research, and connected tools.
8
Also covers self hosted
Build personal AI agents with nanobot, a self-hosted Python framework that includes web UI, tools, memory, and integrations.
9
Chatbox
chatboxai.appAlso covers ai chat
Chatbox brings several AI models into one app for chat and work using user supplied API keys.
10
Also covers self hosted
DocsGPT answers questions over company documents through an open-source and self-hosted retrieval-augmented generation platform.
11
Urv AI Chat
perchance.org/urv-ai-chatAlso covers ai chat
URV AI offers chat with language models, character creation, and image generation.
12
ChatHelp.ai
chathelp.aiAlso covers ai chat
ChatHelp.ai offers a business, work, and study assistant, a website chat widget, and curated AI tools and agents.
13
PyGPT
pygpt.netAlso covers ai chat
PyGPT provides an open-source desktop AI assistant for chat, agent building, and retrieval-augmented knowledge access.
14
Also covers ai chat
NextChat is an AI chat assistant client that supports named language models and is available on web and several desktop and mobile platforms.
15
Also covers ai chat
chatbot-ui provides an AI chat interface for working with different models.
16
Also covers ai chat
Microsoft Copilot provides AI chat for answering questions, writing, image creation, work tasks, and coding.
17
4thWall AI
beta.4wall.aiAlso covers ai chat
4thWall AI provides an interactive chat platform for conversations with AI characters.
18
Mendable
mendable.aiAlso covers ai chat
Mendable helps developers build AI chat applications by ingesting technical content and deploying answers with a line of code.
19
ChatPDF
chatpdf.comAlso covers ai chat
ChatPDF brings ChatGPT-style intelligence and PDF AI technology together for smarter document understanding. Summarize, chat, and analyze.
20
Also covers ai chat
Woozlit offers free AI chat and image generation tools through its online service.
21
Also covers ai chat
SillyTavern is a frontend for users working with large language models.
22
Also covers ai chat
GPT4All runs language models locally on a range of devices through open-source software.
23
Open Webui
github.com/open-webui/open-webuiAlso covers self hosted
Open WebUI provides an interface for using AI models, including Ollama and the OpenAI API.
24
Also covers self hosted
Jan runs an offline AI chat assistant on a personal computer as an open-source ChatGPT alternative.
No alternatives match this filter.
Alternatives to similar tools
Microsoft Copilot24 alternativesOpen Webui24 alternativesSource code24 alternativesAnything Llm24 alternativesOpen WebUI24 alternativesChatGPT-Next-Web24 alternatives
What is the best alternative to Odysseus?
Based on features, tags and platforms, the closest alternatives to Odysseus are Onyx, Enclave, and Merlin.
Is there a free alternative to Odysseus?
Yes. nanobot and Woozlit are free or offer a free plan.
Are there open-source alternatives to Odysseus?
Yes: Enclave, Anything Llm, Open WebUI, and nanobot.
Alternatives are suggested from the purpose and features described in our listings. Different pages for the same product appear once. Read each description to check whether it fits your task. How we choose alternatives · Suggest an alternative