Two AI sidebars, two different bets. Sider is an all-in-one AI suite on a subscription, across Chrome, Edge, Safari, and more. AlliHat is a focused Safari sidebar that runs on your own AI keys or Apple's on-device model, kept private on your Mac.
$29.99/year after trial · macOS 12+ · Safari 16+ · Bring a Claude, ChatGPT, or Gemini key, or use Apple's free on-device AI
Sider is a broad, all-in-one AI suite on a subscription, available across many platforms. AlliHat is a focused Safari sidebar that runs on your own AI keys or Apple's on-device model. Here's how they line up.
| Feature | AlliHat | Sider |
|---|---|---|
| Pricing model | $29.99/yr + your own API usage | Subscription with monthly credits |
| Bring your own API key | ✓ | × |
| Apple on-device AI (free, fully private) | ✓ | × |
| No account required | ✓ | × |
| Data routing | Straight to your provider, no middle server | Through Sider's account and service |
| Models | Claude, ChatGPT, Gemini, Apple on-device | GPT, Claude, Gemini, Grok, DeepSeek and more |
| Ask about the current page | ✓ | ✓ |
| Highlight to explain | ✓ | ✓ |
| Agent mode (clicks, fills forms, navigates) | ✓ | × |
| Platforms | Safari on Mac | Chrome, Edge, Safari, iOS, Android, desktop |
Sider's plans and model lineup change over time. Check sider.ai for their current pricing.
Same idea: an AI sidebar that reads the page with you, with a different set of priorities.
Sider packs in image generation, slide makers, deep research, and a knowledge base across every platform. AlliHat does a few things well: read the page with you, explain what you highlight, and act on the page when you ask. No suite to learn.
Bring your own Claude, ChatGPT, or Gemini key and pay providers directly, usually a few dollars a month, or use Apple's on-device AI for free. No monthly credits to ration and no subscription suite to pay for.
Page content and conversations go straight from your Mac to the provider you chose. No account, no AlliHat servers in the middle, and no analytics inside the extension.
AlliHat is a focused Safari sidebar that runs on your own API keys or Apple's on-device model, with no account and nothing passing through our servers. Sider is a broader all-in-one AI suite (chat, image generation, slides, deep research, a knowledge base) that runs on a subscription with credits across many platforms.
It depends on how you use it. AlliHat is $29.99 a year plus your own API usage, often a few dollars a month, or free with Apple's on-device model. Sider's paid plans are subscriptions with monthly credit limits. If you want one tool that does everything, Sider's suite may be worth it. If you want a focused sidebar on your own keys, AlliHat usually costs less.
If you use Claude, ChatGPT, or Gemini, you bring your own API key and pay that provider directly, typically a few dollars a month for casual use. Or use Apple's on-device model, which is free and requires no key.
Both let you work with leading models like Claude, ChatGPT, and Gemini, and Sider adds more such as Grok and DeepSeek. AlliHat also supports Apple's on-device AI, which runs entirely on your Mac so page content never leaves your device.
With AlliHat, page content and conversations go straight from your browser to your chosen provider, so nothing passes through AlliHat servers, and the extension has no analytics or tracking. Sider runs on an account and routes through its own subscription service.
No. AlliHat keeps each conversation right where you left it in Safari, but it doesn't include a separate saved library. If a persistent, cross-device knowledge base is central to your workflow, Sider's Wisebase is purpose-built for that.
Bring your own key from Anthropic (Claude), OpenAI (ChatGPT), or Google (Gemini), or use Apple's free on-device AI