Claim Your Free 12-Month VIP Gift & 85% OFF Today iTop VPN Premium Power BI on Mac made easy - Enjoy 45% off Parallels today coupon code PD45 Malwarebytes Summer Mega Sale 50% Off SUMMER50
Skip to content

Sider AI Coupon Code: 25% Off Yearly Plans + Review (Sep 2026)

Sider AI is a browser sidebar built by Vidline Inc. that puts GPT-6, Claude Fable 5.1, Gemini, DeepSeek and Grok behind one panel, alongside a browser agent that runs tasks on sites you are already logged into. It is aimed at people who spend the day bouncing between an AI tab and the work itself: researchers, analysts, translators, writers.

See Coupons Read Review
25% Off on Yearly Code Tested at Checkout Official Vidline Inc. Store
Sider AI Coupon Code: 25% Off Yearly Plans + Review (Sep 2026)
Chris Bruner Last updated Sep 15, 2026
Sider AI is 25% off on yearly billing: the annual toggle cuts 17%, then code SID**10 takes another 10% at checkout. That lands Nano at $90, Lite at $225, Pro at $450 and Max at $900 for the year, verified Sep 2026 by Chris. On monthly billing the code alone gives 10%.

Sider AI prices with the 25% stacked discount

Active coupons
Sider Nano Plan - Yearly

Sider Nano Plan - Yearly

10,000 credits a month, temporary cloud computer. For simple occasional tasks

−25%
$90.0$120.0
SIDE•••Copy
Sider Lite Plan - Yearly

Sider Lite Plan - Yearly

25,000 credits a month plus a dedicated 2 vCPU cloud computer. For most everyday tasks

−25%
$225.0$300.0
SIDE•••Copy
Sider Pro Plan - Yearly

Sider Pro Plan - Yearly

50,000 credits a month and a 4 GB RAM cloud computer. For a higher working quota

−25%
$450.0$600.0
SIDE•••Copy
Sider Max Plan - Yearly

Sider Max Plan - Yearly

100,000 credits a month and an 8 GB RAM cloud computer. For heavy daily agent use

−25%
$900.0$1200.0
SIDE•••Copy
Sider AI Sitewide 10% Off

Sider AI Sitewide 10% Off

Choose a higher plan for more credits and a stronger cloud computer.

−10%
$9.0$10.0
SIDE•••Copy

How to get the full 25% off at Sider’s checkout

How to use the coupon
  1. Copy the coupon code from the offer box above.
  2. Open the Sider AI pricing page and make sure the Individual tab is selected.
  3. Switch the billing toggle to Yearly. This is where 17 of the 25 points come from. Skip it and the code only gives you 10%.
  4. Pick your plan and hit Subscribe Now. On the payment screen, paste GRABON into the discount field and apply it.
  5. Confirm the total matches the table above and complete your order.
Sider AI coupon code checkout
Sider AI coupon code checkout

How well does Sider AI actually work?

In-Depth Review & Features

The pitch that holds up is context. Because the sidebar sits on the page you are already reading, you skip the copy-paste loop that makes a separate AI tab tedious, and that saved friction is the whole product. Hand, the browser agent, goes a step further by working inside your logged-in sessions, which is how it can triage a Gmail inbox or compare prices across shops you are signed into. That is genuinely useful and genuinely worth thinking about before you enable it, since the agent has the same access you do.

Sider AI screenshot
Sider AI screenshot

Where it gets murky is the credit system. Sider switched to a single unified credit pool in June 2026 and now deducts by actual usage rather than a published per-action table, so there is no way to translate “25,000 credits” into a number of chats before you subscribe. You find out by watching the Credits log in your account. For a product sold on credit tiers, that is a real gap.

What you get

  • One panel, every frontier model: GPT-6, Claude Fable 5.1, Gemini, DeepSeek and Grok, with the option to fire the same question at several at once and compare the answers side by side.
  • Deep Research: Sider AI scans 100+ sources, writes a cited report, and saves every source into Wisebase so you can click a citation and read it next to the claim.
  • Scholar Deep Research: Searches 350M+ papers from Nature, Science, IEEE and Springer, reading full text rather than abstracts.
  • Hand, the browser agent: Runs multi-step tasks across live sites: form filling, price comparison, inbox triage.
  • A dedicated cloud computer on Lite and above: Keeps Hand running 24/7 without your own machine being awake. Sider values it at $10 to $20 a month depending on tier.
  • Code: Restyles or rewires any website from a plain-language instruction and remembers the change on your next visit.

What we think

Pros
  • Pricing scales linearly, so nobody gets punished for buying the small plan. Every tier works out at $0.75 per 1,000 credits after the code.
  • The dedicated cloud computer on Lite and up is a real inclusion, not a feature-list filler. It is what lets the agent keep working when your laptop is shut.
  • Genuinely cross-platform: Chrome, Edge, Windows, macOS, iOS and Android on one account.
Cons
  • Fees are non-refundable per the published terms. On a $900 annual charge that is the single biggest thing to weigh.
  • No published credit conversion table for current plans, so you cannot estimate your monthly usage before you commit.

Which Sider AI plan should you buy?

Plan comparison
PlanEffective cost/month (yearly + code)Credits/monthCloud computerBest for
Nano$7.5010,000Temporary, on demandOccasional summaries and translation
Lite$18.7525,000Dedicated: 2 vCPU, 2 GB RAM, 40 GB SSDDaily use, first tier with 24/7 agent
Pro$37.5050,000Dedicated: 2 vCPU, 4 GB RAM, 40 GB SSDHeavy research and Deep Research runs
Max$75.00100,000Dedicated: 4 vCPU, 8 GB RAM, 40 GB SSDAll-day agent work, image and video generation

Run the per-credit maths and the tiers collapse into one price. Nano is $90 for 120,000 credits a year, Max is $900 for 1,200,000. Both are $0.75 per 1,000 credits, and so are Lite and Pro. There is no volume discount here at all, which means the usual advice to “buy one tier up for headroom” does not apply. Buy the smallest plan that covers your credits and top up if you are wrong.

The one exception is the jump from Nano to Lite. Nano only gets a temporary cloud computer, while Lite adds a dedicated one that Sider itself prices at $10 a month. At the same rate per credit, that machine comes free with the tier. If you plan to use Hand for anything unattended, Lite is the real entry point.

Frequently Asked Questions

Common questions

Is Sider AI really 25% off, or is that just the coupon?

It is both discounts together. Code from WinningPC is worth 10%; Sider’s own yearly billing toggle is worth 17%. Apply the code on a yearly plan and the combined price is exactly 25% below what the same plan costs paid monthly for a year. On a monthly subscription the code still works, but you only get the 10%.

What’s the cheapest Sider AI plan with the discount?

Nano at $90 for a full year, down from the $120 you would pay across 12 monthly charges.

Is one subscription valid on all my devices?

Yes. One Sider account covers the Chrome and Edge extensions plus the Windows, macOS, iOS and Android apps.

What is the cloud computer, and do I need it?

It is a remote machine Sider runs for you so the Hand agent can keep working when your own device is off. Nano gets temporary access on demand; Lite and above get a dedicated one, from 2 GB RAM up to 8 GB. If you only use the chat sidebar, it is not a reason to upgrade.

Does Sider let me use the output commercially?

Yes. The terms grant you full rights to use, modify, distribute and commercialise the content you generate, with no attribution required, and “Commercial Use Allowed” is listed as a premium feature on the pricing page.

What you need to run it

System Requirements
BrowsersChrome (Web Store), Edge (Add-ons)
DesktopWindows, macOS (Mac App Store)
MobileiOS (App Store), Android
AccountOne Sider account works across every platform
Supported upload formatsPDF, DOC, PPT and web links (Interactive Reading); PDFs, documents and presentations into Wisebase
File size limit (free plan)10 MB per file
CPU / RAM / diskNot specified by the publisher

Is Sider AI worth it?

Final overview
8.8Expert Score
Good

If you will actually use the browser agent, Lite at $225 a year with the code is the plan that makes sense: it is the cheapest tier that includes a dedicated machine, and the per-credit rate is identical to Max anyway. If you only want the chat sidebar, Nano at $90 does the same job for a quarter of the price. The caveat that should decide it for you is the refund policy, or rather the absence of one, so spend a week on the free tier before you hand over a year’s fee.
(Review by Chris – tech writer and software reviewer at WinningPC)

Overall
8.8
Functionality
8.8
Ease-of-use
8.5
Customer Support
9
Community Comments (0)

Leave a review or comment

Your email address will not be published. Required fields are marked *

Reader rating (optional)
4.6/5 (5 votes)
Choose 1–5 stars

WinningPC
Logo
Register New Account