1
Chatbox
chatboxai.appAlso covers ai chat and ai models · same kind of online tool
Chatbox brings several AI models into one app for chat and work using user supplied API keys.
Alternatives
The Best Merlin Alternatives in 2026
24 alternatives2 free · 7 open source
Looking for something like Merlin? 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 7 are open source.
Merlin offers an AI chat interface for accessing models such as ChatGPT and Gemini to research, write, code, and create images.
Top picks at a glance
First suggestionChatboxChatbox brings several AI models into one app for chat and…Free or freemium optionOdysseusOdysseus provides a self hosted AI workspace with chat…Another optionChatHelp.aiChatHelp.ai offers a business, work, and study assistant, a…
Quick comparison
| # | Alternative | Pricing | Open source | Platforms |
|---|---|---|---|---|
| 1 | Chatbox | — | Not stated | Android, iOS, Web |
| 2 | ChatHelp.ai | — | Not stated | Web |
| 3 | Odysseus | Free | Yes | Web |
| 4 | Mendable | — | Not stated | Web |
| 5 | ChatPDF | — | Not stated | Web |
| 6 | Source code | — | Yes | — |
| 7 | ChatSonic | — | Not stated | Web |
| 8 | Urv AI Chat | — | Not stated | Web |
| 9 | ChatGPT-Next-Web | — | Yes | Android, iOS, Linux |
| 10 | Arena | — | Not stated | Web |
All Merlin alternatives
2
ChatHelp.ai
chathelp.aiAlso covers ai chat and ai models · same kind of online tool
ChatHelp.ai offers a business, work, and study assistant, a website chat widget, and curated AI tools and agents.
3
Also covers ai chat · open source · free
Odysseus provides a self hosted AI workspace with chat, agents, tools, model serving, email, and research.
4
Mendable
mendable.aiAlso covers ai chat · same kind of online tool
Mendable helps developers build AI chat applications by ingesting technical content and deploying answers with a line of code.
5
ChatPDF
chatpdf.comAlso covers ai chat · same kind of online tool
ChatPDF brings ChatGPT-style intelligence and PDF AI technology together for smarter document understanding. Summarize, chat, and analyze.
6
Also covers ai chat · open source
chatbot-ui provides an AI chat interface for working with different models.
7
ChatSonic
writesonic.com/chatAlso covers ai chat
ChatSonic combines AI chat with marketing workflows, research, and connected tools.
8
Urv AI Chat
perchance.org/urv-ai-chatAlso covers ai chat · same kind of online tool
URV AI offers chat with language models, character creation, and image generation.
9
Also covers ai chat · open source
NextChat is an AI chat assistant client that supports named language models and is available on web and several desktop and mobile platforms.
10
Arena
arena.ai/text/directAlso covers ai models · same kind of online tool
Arena lets users prompt multiple frontier AI models in one place for research, coding, and creative tasks.
11
PyGPT
pygpt.netAlso covers ai chat · same kind of online tool
PyGPT provides an open-source desktop AI assistant for chat, agent building, and retrieval-augmented knowledge access.
12
Also covers ai chat · same kind of online tool · free
Woozlit offers free AI chat and image generation tools through its online service.
13
Mochii AI
mochii.aiAlso covers browser extension and web browser · same kind of online tool
Mochii AI combines ChatGPT, Claude, and Gemini in a browser extension with custom characters and chatbot creation tools.
14
Onyx
github.com/onyx-dot-app/onyxAlso covers ai chat
Onyx provides open-source AI chat that can work with different language models.
15
Also covers ai chat
Microsoft Copilot provides AI chat for answering questions, writing, image creation, work tasks, and coding.
16
AI Assistant
aiassistantbot.pages.devAlso covers ai models · same kind of online tool
AI Assistant provides users with chat access to more than 30 different AI models.
17
Monica
monica.imAlso covers browser extension · same kind of online tool
Monica combines chat, image, video, and research tools with models from OpenAI, Anthropic, and Google.
18
Direct
canaryarena.ai/text/directAlso covers ai models
Direct lets you prompt multiple open-source and proprietary language models in one place for research, coding, and creative tasks.
19
4thWall AI
beta.4wall.aiAlso covers ai chat
4thWall AI provides an interactive chat platform for conversations with AI characters.
20
Thena
thena.aiAlso covers ai chat
Thena provides customer-support ticketing and AI chat for B2B teams across Slack, email, and web chat.
21
Also covers ai chat · open source
SillyTavern is a frontend for users working with large language models.
22
Also covers ai chat · open source
GPT4All runs language models locally on a range of devices through open-source software.
23
Also covers ai chat · open source
Enclave explores a virtual world for AI companionship and social interaction.
24
Also covers ai models · open source
Intelli builds chatbots and agents from user-defined intents and model choices.
No alternatives match this filter.
Alternatives to similar tools
Microsoft Copilot24 alternativesSource code24 alternativesChatGPT-Next-Web24 alternativesAI Assistant24 alternativesChatbox24 alternativesOnyx24 alternatives
What is the best alternative to Merlin?
Based on features, tags and platforms, the closest alternatives to Merlin are Chatbox, ChatHelp.ai, and Odysseus.
Is there a free alternative to Merlin?
Yes. Odysseus and Woozlit are free or offer a free plan.
Are there open-source alternatives to Merlin?
Yes: Odysseus, Source code, ChatGPT-Next-Web, and Silly Tavern.
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