Shortlist by what you need
Start here if you know why you are leaving Lumo.
Want the closest match?
ChathubMost similar to Lumo in what it does, its category and its price.
Visit (opens Chathub in a new tab)Need a free plan?
ChatGPTHas a free plan, rated 4.8 out of 5.
Visit (opens ChatGPT in a new tab)Want the lowest price?
ChatWizardFrom $9/mo, the lowest starting price here.
Visit (opens ChatWizard in a new tab)Want the best rated?
Perplexity AIRated 4.6 out of 5 in our review, against 4.0 for Lumo.
Visit (opens Perplexity AI in a new tab)
At a glance
Green means better than Lumo, red means worse. Prices are starting prices per month.
| Tool | Our rating | Starts at | Free plan | Best for | Compare |
|---|---|---|---|---|---|
 LumoBaseline | 4.0 | Free | Yes | Proton's privacy-first AI chat assistant with zero-access encrypted chats, open-source code, web search and image generation, on web, iOS and Android. | |
| Chathub | 3.4−0.6 | Free | Yes | One question, every answer - compare GPT-5, Claude 4.5, Gemini 3, Grok, and 20+ other models side by side under a single subscription, used by 300,000+ people. | vs Lumo |
 Chatsonic | 4.1+0.1 | $15/mo | Yes | Writesonic's chatbot, built with search grounding and images included | vs Lumo |
 Arvin | 3.7−0.3 | Free | Yes | Browser extension and web app that puts GPT, Claude and Gemini chat, writing help, translation, PDF chat and image generation in one assistant, with daily free credits. | vs Lumo |
| ChatGPT | 4.8+0.8 | $20/mo | Yes | The product that took generative AI mainstream in late 2022 | vs Lumo |
 Google Gemini | 4.4+0.4 | $20/mo | Yes | Multimodal from the ground up, deeply tied to Google's ecosystem | vs Lumo |
| ChatWizard | 3.2−0.8 | $9/mo | Yes | ChatGPT-based bot builder that trains on your website or documents and embeds with three lines of HTML, from a free plan. | vs Lumo |
 Cody by Meetcody | 4.0Same | $29/mo | Yes | Cody trains an AI employee on a company's documents, websites, and files so it can answer staff and customer questions with cited sources. | vs Lumo |
| Perplexity AI | 4.6+0.6 | $20/mo | Yes | The AI answer engine most competitors measure themselves against | vs Lumo |
The alternatives in detail
In order of how closely each one matches Lumo.
Chathub
3.4Free
vs Lumo−0.6
One question, every answer - compare GPT-5, Claude 4.5, Gemini 3, Grok, and 20+ other models side by side under a single subscription, used by 300,000+ people.
- Side-by-side comparison across GPT-5, Claude 4.5, Gemini 3, Grok, and 20+ models
- AI image generation via FLUX.2, Stable Diffusion, and Nano Banana
- File and document analysis with web search integration
Genuinely broad model access under one subscription instead of many
Free tier is limited compared to the paid comparison breadth
Chatsonic
4.1$15/mo
vs Lumo+0.1
Writesonic's chatbot, built with search grounding and images included.
- Real-time web search grounding by default
- Built-in image generation within chat
- Voice input and output
Search grounding keeps answers current without extra setup
Less distinctive for users who don't already use Writesonic
Arvin
3.7Free
vs Lumo−0.3
Browser extension and web app that puts GPT, Claude and Gemini chat, writing help, translation, PDF chat and image generation in one assistant, with daily free credits.
- Chat in the browser through an extension with a keyboard shortcut
- Access to GPT, Claude and Gemini models
- Chat with PDF, AI search and email reply generation
Daily free credits across several models
Built on third-party models rather than its own
ChatGPT
4.8$20/mo
vs Lumo+0.8
The product that took generative AI mainstream in late 2022.
- Broad, frequently updated GPT model family
- Image generation, voice mode, and web browsing built in
- Custom GPTs for configuring specialized assistants
Largest user base means the most third-party tutorials and integrations
Free tier usage limits are tighter than some competitors' free access
Google Gemini
4.4$20/mo
vs Lumo+0.4
Multimodal from the ground up, deeply tied to Google's ecosystem.
- Native multimodal understanding of text, image, video, and audio
- Deep integration with Gmail, Docs, Sheets, and Workspace
- Deep Research for autonomous multi-source report synthesis
Native multimodal design rather than bolted-on media support
Full value depends on already using Google Workspace regularly
ChatWizard
3.2$9/mo
vs Lumo−0.8
ChatGPT-based bot builder that trains on your website or documents and embeds with three lines of HTML, from a free plan.
- Bots trained on website URLs and uploaded documents
- Embeds with three lines of HTML on Webflow, WordPress, Shopify and more
- Custom look, conversation starters and frequent questions
Clear plan limits, from a free tier to $99 a month
Message credits are small on the lower plans, with 10 free and 1,000 on Starter
Cody by Meetcody
4.0$29/mo
vs LumoSame
Cody trains an AI employee on a company's documents, websites, and files so it can answer staff and customer questions with cited sources.
- Knowledge base built from uploaded files or crawled websites
- Source citations attached to every answer
- Website chat widget and Slack deployment
Answers cite their source document, reducing hallucinated claims
Shares a name with unrelated AI tools, including Sourcegraph's coding assistant, risking confusion
Perplexity AI
4.6$20/mo
vs Lumo+0.6
The AI answer engine most competitors measure themselves against.
- Citation-first answers with linked, verifiable sources
- Deep Research for multi-step, multi-source investigation
- Comet browser extending search into general browsing
Citation-first design remains the category reference point for verifiable answers
Advanced research features are rate-limited on the free tier
FAQ
Questions people ask
Is Lumo free?
Lumo has a free plan.
What is the best free alternative to Lumo?
ChatGPT is the highest-rated alternative here with a free plan (4.8 out of 5). Other free options: Perplexity AI, Google Gemini, Chatsonic.
What is the cheapest alternative to Lumo?
Among paid plans, ChatWizard has the lowest starting price (from $9/mo). If you need it free, start with ChatGPT.
How did you pick these alternatives?
We match tools on what they do, their category and their price, using the details in our directory. Ratings come from our reviews and reader reviews.