Shortlist by what you need
Start here if you know why you are leaving ChatKit.
Want the closest match?
PDF PalsMost similar to ChatKit in what it does, its category and its price.
Visit (opens PDF Pals in a new tab)Need a free plan?
AiAssistWorksHas a free plan, rated 4.0 out of 5. ChatKit has none.
Visit (opens AiAssistWorks in a new tab)Want the best rated?
AtuaRated 4.1 out of 5 in our review, against 3.4 for ChatKit.
Visit (opens Atua in a new tab)
At a glance
Green means better than ChatKit, red means worse. Prices are starting prices per month.
| Tool | Our rating | Starts at | Free plan | Best for | Compare |
|---|---|---|---|---|---|
 ChatKitBaseline | 3.4 | $5/mo | No | A refined ChatGPT interface across OpenAI, Gemini, Azure and custom models - bring your own API key or buy credits at a flat 1:1 rate, with URL context, full chat-history search and Whisper voice input. | |
| PDF Pals | 4.0+0.6 | $29/mo$24 more | No | Native Mac app for chatting with PDFs locally using your own OpenAI or Azure API key. | vs ChatKit |
 PaletteBrain | 3.4Same | $29/mo$24 more | No | Select text in any Mac app, hit Space, run a custom AI command, paste the result back - no window switching, bring your own OpenAI key, pay once for lifetime access. | vs ChatKit |
| Atua | 4.1+0.7 | $29/mo$24 more | No | Mac app that puts AI commands behind a hotkey in any app: select text, capture a screenshot or speak, then run a custom command on the model of your choice using your own API key, with MCP server support and system tools. | vs ChatKit |
 Lunabot | 3.5+0.1 | Free | YesChatKit has none | One AI assistant, five models (GPT-4o, Gemini, Claude, Mistral, Ollama), working identically across browser, mobile, desktop, Telegram and even Siri - no separate API key or ChatGPT account needed. | vs ChatKit |
 IntelliBar | 3.8+0.4 | Not listed | No | Native Mac menu-bar AI client that talks to OpenAI, Anthropic, Google and local models with your own keys, sold as a one-time license. | vs ChatKit |
| AiAssistWorks | 4.0+0.6 | $3/mo$2 less | YesChatKit has none | A Google Workspace add-on that lets you bring your own model key. | vs ChatKit |
 Krater | 3.6+0.2 | $16.67/mo$11.67 more | No | All-in-one AI workspace that puts ChatGPT, Claude, Gemini and 400+ other models behind one credit-based subscription. | vs ChatKit |
 SheetGPT | 3.7+0.3 | Not listed | No | GPT add-on for Google Sheets that generates and edits text and images directly inside spreadsheet cells with built-in GPT functions, no API key required. | vs ChatKit |
The alternatives in detail
In order of how closely each one matches ChatKit.
PDF Pals
4.0$29/mo
vs ChatKit$24 more+0.6
Native Mac app for chatting with PDFs locally using your own OpenAI or Azure API key.
- Local document storage with no file upload to vendor servers
- Bring-your-own API key support for OpenAI, Azure, and OpenRouter
- OCR engine for scanned PDFs and complex forms
Local-first design addresses real privacy concerns around uploading sensitive PDFs
Mac-only, with no Windows or web version for cross-platform teams
PaletteBrain
3.4$29/mo
vs ChatKit$24 moreSame
Select text in any Mac app, hit Space, run a custom AI command, paste the result back - no window switching, bring your own OpenAI key, pay once for lifetime access.
- Works with any macOS app or website via keyboard shortcut
- Custom AI commands - grammar, translation, summarization, code refactoring
- Bring-your-own OpenAI/Azure API key, pay-as-you-go
Genuine lifetime pricing instead of an ongoing subscription
Mac-only - no Windows or Linux version
Atua
4.1$29/mo
vs ChatKit$24 more+0.7
Mac app that puts AI commands behind a hotkey in any app: select text, capture a screenshot or speak, then run a custom command on the model of your choice using your own API key, with MCP server support and system tools.
- Hotkey commands from any Mac app
- Context from selected text, screenshots, clipboard, voice and screen OCR
- Custom commands with their own hotkey, model and output mode
One-time $29 license with no subscription
Mac only
Lunabot
3.5Free
vs ChatKit+0.1Free plan
One AI assistant, five models (GPT-4o, Gemini, Claude, Mistral, Ollama), working identically across browser, mobile, desktop, Telegram and even Siri - no separate API key or ChatGPT account needed.
- Multi-model support (GPT-4o, Gemini, Claude, Mistral, Ollama)
- Genuine cross-platform sync (browser, mobile, desktop, Telegram, Siri)
- Chat with Memory across sessions
Unusually wide platform coverage (including Telegram and Siri) under one subscription
Top-tier features (Gemini Pro, image generation) require the $19.99/month Super plan
IntelliBar
3.8Not listed
vs ChatKit+0.4
Native Mac menu-bar AI client that talks to OpenAI, Anthropic, Google and local models with your own keys, sold as a one-time license.
- One menu-bar interface for OpenAI, Anthropic, Google, Grok, DeepSeek, Perplexity and other models
- Local models through Ollama
- Compare the same prompt across several models
No app subscription, and you pay only for the model usage you choose
Needs your own provider keys or accounts, so running costs vary
AiAssistWorks
4.0$3/mo
vs ChatKit$2 less+0.6Free plan
A Google Workspace add-on that lets you bring your own model key.
- Bulk AI fill across Sheets, Docs and Slides
- Natural-language formulas, charts, pivot tables and validation
- 100+ models across 7 providers via your own API key
Bring-your-own-key removes the usual model-access markup
Google's own Apps Script quotas still apply regardless of the no-limit claim
Krater
3.6$16.67/mo
vs ChatKit$11.67 more+0.2
All-in-one AI workspace that puts ChatGPT, Claude, Gemini and 400+ other models behind one credit-based subscription.
- Chat with 400+ models including ChatGPT, Claude, Gemini, Grok, Mistral and DeepSeek
- Image and video generation, editing and upscaling
- Code generation and debugging with live previews
One subscription and login for hundreds of models and tools
Credits are not explained, so cost per task is hard to compare
SheetGPT
3.7Not listed
vs ChatKit+0.3
GPT add-on for Google Sheets that generates and edits text and images directly inside spreadsheet cells with built-in GPT functions, no API key required.
- Custom GPT functions usable directly inside Google Sheets cells
- Text and image generation without leaving the spreadsheet
- Built-in result caching to avoid paying for repeated queries
Generous free trial (100,000 words) with no signup required
Specific paid-plan pricing is not clearly published on-site
FAQ
Questions people ask
Is ChatKit free?
ChatKit does not list a free plan. Paid plans start from $5/mo.
What is the best free alternative to ChatKit?
AiAssistWorks is the highest-rated alternative here with a free plan (4.0 out of 5). Other free options: Lunabot.
What is the cheapest alternative to ChatKit?
Among paid plans, AiAssistWorks has the lowest starting price (from $3/mo). If you need it free, start with AiAssistWorks.
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.