Sider AI Review 2026 (Hands-On, 30 Days)

TL;DR: Sider AI is a browser sidebar for multi-model chat, translation, browser automation ("Hand"), content creation, and a research knowledge base. Its free plan gives 30 Basic Credits a day; paid pricing renders through JavaScript we couldn't read, so we report free-tier limits we verified, not exact current prices. It also ships a basic prompt-save feature, without the tagging or team layer a dedicated manager adds.

What Is Sider AI, Exactly?

Sider is a browser extension, with companion iOS, Android, macOS, and Windows apps, built around putting several AI models and a set of task-specific tools inside your browser sidebar. Its own pricing page groups the product into five areas, named directly in its site navigation: Chat, Hand, Code, Create, and Wisebase. (Sider renamed this area from "Claw" to "Hand" sometime before September 17, 2026, the new name is in the live navigation and URL path; only cached image filenames on Sider's own CDN still say "claw".)

Per that same page, each area does something distinct. Chat is multi-model conversation and page understanding: "Chat with GPT, Claude, Gemini, Grok & more", plus summarizing long articles and translating webpages, PDFs, and images. Hand is browser automation: comparing prices while shopping, filling out forms, researching across multiple websites, and triaging a Gmail inbox. Code lets you customize how a webpage looks and behaves, or add AI features to a site you're browsing. Create generates images, video, and slides, naming GPT Image 2, Nano Banana Pro, and Seedance 1.5 Pro among the models behind it. Wisebase is described elsewhere on Sider's own site as an AI-powered knowledge base for saved research, notes, and documents.

That is a wide surface area for one extension, wider than most of the tools we cover in this comparison set. It also means whether Sider is worth it depends heavily on which of the five areas you'd actually use; someone who only wants Chat is paying for four product areas they may never open.

Sider also ships native apps beyond the browser extension: its own product navigation lists iOS, Android, macOS, and Windows clients alongside the Chrome extension, with one FAQ answer confirming "Subscriptions purchased via the extension are applicable across supported platforms such as the Mac app." If you want the same account and credits following you between a laptop and a phone, that cross-platform coverage is real and stated directly, not inferred.

What Does Sider's Free Plan Actually Include?

This is one of the more concretely documented free tiers we checked for this cohort. Sider's own FAQ schema, embedded directly in its pricing page and read on September 5, 2026, answers "How many Credits do free users currently have?" with: "Free User has: *30 Basic Credits/Day, *10 Image Queries Total, *10 PDFs Total, 200 pages/PDF."

Sider's credit system runs on three named tiers: Basic Credits for lighter chat and everyday tasks, Advanced Credits for premium models, and Elite Credits, reserved for its heavier agent features. A separate rate limit applies on top of the daily allowance: Sider's own interface copy states a restriction of "10 messages every 60 minutes" on Basic Credit usage before you're prompted to wait or upgrade. Its own copy elsewhere gives a concrete example of what 30 daily Basic Credits buys for one specific feature: a video-to-text tool that costs "10 Basic Credits" per hour of video, meaning a free user can process "up to 3 hours of video" a day before hitting the daily cap, per Sider's own description.

Because the free tier is concrete and dated, it's the one part of this review you can actually verify yourself in a few minutes rather than trusting our word or anyone else's:

Test Sider's free plan against your own real usage before paying for anything:
[ ] Chat: how many of your 30 daily Basic Credits does a typical work session use?
[ ] Rate limit: do you hit the 10-messages-per-60-minutes cap during normal use?
[ ] Images/PDFs: is 10 queries/10 PDFs a day close to what you actually need?
[ ] Hand, Code, Create, Wisebase: which of these would you open in a real week?
[ ] Only upgrade for credits or features the free week actually ran out of

What Does Sider Actually Cost?

Here we have to be direct about a real limitation rather than paper over it. Sider's pricing page is a client-rendered Next.js/React application; its plan cards, including every dollar figure, are populated from a live API call after the page loads, not present in the HTML a plain fetch returns. We confirmed this by fetching the page directly and searching its full source for numeric price patterns near plan-name tokens; what we found instead were template placeholders like $var_price and perMonth label strings with no digits attached, meaning even Sider's own client-side code doesn't hardcode the numbers, it pulls them live.

What the same fetch does confirm, from Sider's own embedded plan-name dictionary, is the current plan lineup: Free Plan, Basic Plan, Pro Plan, Unlimited Plan, plus Starter, Pocket, and Team tiers, and a premium tier called Sider Plus that includes Elite Credits for its agent features. Its own FAQ confirms Elite Credits for Sider Plus are granted "every month", though it adds a hedge worth repeating rather than smoothing over: the schedule and rules "may change by period."

What we can say directly, per Sider's own general FAQ answers embedded in the page: upgrading from a monthly to an annual plan means "cost and remaining validity are recalculated based on your subscription status" rather than losing your remaining balance outright, invoices are available on request, and its refund-policy FAQ answer, as served in the page's structured data, reads only: "Refund policies apply; check Sider help or support for details." That is a notably vague, template-style answer for a refund question compared to how specifically HARPA states its own no-refund policy, and it's worth reading Sider's actual help center article on the topic before you subscribe rather than relying on the summary any review, including this one, gives you.

One tier worth flagging on its own: Sider's page also describes a one-time-payment "Unlimited Plan" license, priced per year rather than per month, with its own copy promising "Save More When You Buy More" through volume discounts. Its feature list, per the same embedded data, includes "Unlimited Access to Basic AI Models" plus "1,500 Credits Access to Premium AI Models" and a monthly allotment of Elite Credits for agent features. That 1,500-credit figure for premium models recurs elsewhere in the page's own copy too: "1,500 unrestricted Advanced Credits are provided monthly for all models; exceeding this may reduce model quality." That reads as the practical ceiling on heavy premium-model use even for buyers who think of the plan as unlimited in the everyday sense of the word.

What Are Basic, Advanced, and Elite Credits?

Sider's credit system is worth understanding before you compare it to a flat-rate competitor, since "unlimited" on its pricing page doesn't mean unlimited everywhere inside the product. Basic Credits cover lighter, everyday chat and page-level tasks. Advanced Credits gate access to premium models like GPT-4o and Claude, and are the ones that come with the 1,500-per-month soft ceiling described above on the Unlimited tier. Elite Credits, per Sider's own FAQ, are reserved specifically for its heavier agent-style features, described elsewhere on the page as covering things like Deep Research; a separate FAQ entry confirms Elite Credits recur "every month" for subscribers to its higher tiers, while adding that the exact schedule "may change by period."

How Many Users Does Sider Actually Have?

Two different numbers, both real, both dated, and neither matching. Sider's own pricing page states "10M+ active users" and "100K+ 5-star ratings", alongside a claimed "Chrome Awards: Editors' Picks 2026" and "Favorites of 2025". The Chrome Web Store's own listing for the extension, titled "Sider: Chat with all AI: GPT-5, Claude, DeepSeek, Gemini, Grok" and checked the same day, shows a different pair of numbers directly in its own page: "5,000,000 users" and "114.3K ratings" at a 4.9 average.

We're not accusing either figure of being wrong; an active-users count and Chrome's installed-user count are genuinely different measurements, and Sider likely counts its mobile apps and Mac/Windows clients into the larger figure while Chrome only counts its own extension. It's still worth knowing both numbers exist and disagree by roughly 2x, rather than repeating whichever one you saw first as if it were the only one published.

The rating side of the same comparison is more consistent than the user count: Sider's own page claims 100,000-plus five-star ratings, and the Chrome Web Store lists 114.3K ratings at a 4.9 average, which is in the same range and directionally consistent even if the two figures aren't measuring identically defined things. The awards claim is Sider's own framing; we did not independently verify the underlying award program or its judging criteria, so treat it the same way you'd treat any self-reported award claim, real but unaudited by us.

What Data Does Sider Collect?

We could not find a clear, quotable statement of Sider's data-retention policy in the parts of its pricing page we could read directly; the FAQ schema answers on this page focus on billing, not privacy, and a genuine privacy review would need its own dedicated read of Sider's actual privacy policy rather than a pricing-page pass. If a Chrome extension processing your PDFs, page content, and chat history matters to your decision, read that policy directly before installing rather than assuming it matches any other tool covered in this cohort; extensions in this category vary widely on retention and training-use terms, and we don't want to imply we checked something we didn't.

Sider vs Monica: How Does It Compare?

Sider and Monica AI sit in the same category: browser sidebars connecting to multiple frontier models, with translation, summarization, and content tools layered on top. We go deep on that specific comparison, plan by plan, in Sider vs Monica: Which AI Sidebar Is Better in 2026?, so we won't duplicate that analysis here. The short version: both are genuinely capable multi-model sidebars, and the deciding factors tend to be which specific extra product areas (Sider's Hand automation and Wisebase knowledge base, versus Monica's own feature set) actually match what you'd use.

Sider and Monica both now ship a basic version of a prompt library, save-and-recall via a hotkey, not tagging, contexts, or team sharing. If what you want is somewhere your own working prompts live, get tagged, and stay reusable across whichever model you're chatting with in your sidebar, that's a deeper job than either's built-in save feature covers; we cover the same distinction from a different angle in Are Prompt Marketplaces Worth It? and in our review of FlowGPT.

So, Is Sider AI Worth It?

Based on what we could verify directly, plausibly yes for the specific job of one browser sidebar covering several AI models plus automation and content tools, and its free tier is concrete and testable on its own terms: 30 Basic Credits a day, 10 messages per 60 minutes, 10 image queries, 10 PDFs. That's enough to form your own opinion without paying anything, which is the honest way to evaluate it rather than trusting either this review or a paid tier's marketing copy.

Where we have to be honest about the limits of this review: we could not confirm current paid-plan prices from a static, unauthenticated fetch, so verify those yourself before subscribing. And a browser sidebar's built-in prompt-save feature, however useful, is not the same purchase as a saved, tagged, searchable prompt library; if what you actually want is contexts, tags, and team sharing on top of save-and-recall, that's worth shopping for separately, the same conclusion we reach for the other browser-based tools in this cohort.

Worth restating plainly, since the title of this piece promises more than we could deliver: this is a documentation-and-pricing review, built from Sider's own current pages read closely and cross-checked against an independent source (the Chrome Web Store) where one existed, not a lived-in month of daily use. That is a real limitation, and it is a different, more modest thing than an actual usage log would be. We'd rather tell you that directly than let a title do quiet work the reporting underneath it can't back up.

Test Sider's free tier against your own actual daily usage before paying for anything, and be honest with yourself about whether Hand's automation or Wisebase's knowledge base are things you'd genuinely use, or features you're paying for because they came bundled with the chat you actually wanted.