Amazon Rufus Is About to Start Charging. Here's What You're Paying For.

Amazon Rufus has been free advertising for 18 months. That ends on March 25.

Sponsored Prompts — the AI-generated questions that appear inside Rufus conversations and tie back to specific products — are exiting beta and going to general availability in the US on March 25, 2026. CPC billing starts that day. Every active Sponsored Products and Sponsored Brands campaign is auto-enrolled.

Quick distinction before we go further: Rufus is Amazon's AI shopping assistant. Sponsored Prompts are the paid ads inside Rufus conversations. They share the same content signals, but they're different surfaces. Organic Rufus pulls what it thinks is the best answer. Sponsored Prompts buy placement in the answer — but only if your listing qualifies. Keep that separation in mind for everything below.

You can opt out at the campaign level, or go granular — the Prompts tab lets you pause individual prompts while keeping others running. But if you haven't looked at this yet, you're already opted in.

Amazon Wrote Your Ads From Your Listing

Here's the mechanic most brands don't know: you can't write your own Sponsored Prompts. Amazon generates them automatically from your listing content — title, bullets, description, attributes. Whatever you put in those fields is what Amazon's AI uses to build the conversational question that runs in Rufus.

If your title is "Wireless Earbuds Bluetooth 5.3 Noise Cancelling With Charging Case 48H Battery IPX7," that's the material Amazon's working with. It generates something like "What are good earbuds for long battery life?" and attaches your product. The prompt goes live. You pay per click.

You can't approve it before it runs. Amazon generates and launches. Once it's live, you can see it in the Prompts tab — the text, sample Rufus response, impressions, clicks. You can pause anything you don't want. But there's no approval step before launch. The first you know about a specific prompt is after it's already running.

Brands that rewrote their listings for human readability instead of keyword density are going to get better prompts. Listings optimized for the old search algorithm — specs crammed into the title, every attribute stuffed into bullet one — give Amazon's AI thin material to work with. The prompt quality reflects that.

What the Beta Period Actually Showed

During the free window, one brand published actual Sponsored Prompts beta data: 5,000 impressions, 41 clicks, $512.71 in attributed sales, from 35 prompt entries generated from 18 unique questions — at zero cost. That was a single brand in one beta cohort, so treat it as directional. But at $512 from $0 spend, the case for participating is obvious.

The mechanism makes sense. When Amazon Rufus fields a query that matches your prompt, your product appears in the conversational response, not just the traditional search results below it. You're answering the question. That's a qualitatively different surface — Rufus sessions are about 60% more likely to convert than standard Amazon search sessions, with peak shopping events like Black Friday 2025 showing even higher lift.

We've watched the organic version of this play out at Envision Horizons across dozens of brands. When we updated listings from keyword-dense titles to clear, human-readable descriptions — "lasts a full work week on a single charge" instead of "48H Battery Life" — brands started appearing in Rufus responses for category queries within weeks, even when their traditional search rank didn't change. The content quality signal works independently of keyword rank. Sponsored Prompts are the paid amplification of whatever organic Rufus signal your listing already sends.

If that underlying signal is weak, paid amplification makes it louder, not better.

What Rufus Checks Before Attaching a Product to a Prompt

The budget doesn't decide which products run in which prompts. Amazon Rufus selects based on relevance to the conversational query — the same signals that drive organic recommendations: review sentiment by use case, listing content clarity, Q&A depth, pricing stability.

A product with strong reviews, organized bullets, and active Q&A gets attached to relevant prompts. A product with keyword-stuffed titles and unanswered questions in Q&A produces weaker Rufus responses and ends up in fewer prompt placements — regardless of how high you bid.

This is the part of Sponsored Prompts that's different from traditional PPC. With Sponsored Products, budget and bid largely determine visibility. With Sponsored Prompts, content quality is the qualifier. You're buying the amplification, not the placement itself. Amazon still decides whether your product deserves to be in the response.

For categories with high Rufus query volume — supplements, health monitors, cameras — the gap between well-optimized and mediocre listings widens after March 25. If you manage a supplement brand, Rufus is already fielding questions like "what protein powder is good for recovery" thousands of times a day. Your listing content is either answering those questions well or it isn't. You can now pay to be more visible in that answer, but only if the answer is already decent.

The Budget Control Problem

Here's the real measurement gap with Sponsored Prompts: you can't set a dedicated Rufus budget. Prompts share the campaign budget with standard Sponsored Products delivery. There's no "Rufus only" spending allocation in Campaign Manager.

What you can see: prompt-level performance — text, associated ad, impressions, clicks, CTR, CPC, spend, sales, ACOS, ROAS. Amazon built actual reporting for this. What you can't control: if your campaign has aggressive Sponsored Products bids eating the daily budget, your prompts may not spend at all, or they'll compete internally with your own search placements.

The practical implication for March 25: you may need to create dedicated campaigns for Sponsored Prompts if you want clean budget control and clean performance data. Running them inside your existing search campaigns works, but you'll be looking at blended numbers.

What to Check Before March 25

Open Campaign Manager now. Go to Sponsored Products and Sponsored Brands. Any active campaign is eligible for Sponsored Prompts. Look for the Prompts tab to see what's running or eligible for your products.

Pull up Rufus on the Amazon mobile app and search your category. Ask it the questions your customers would ask. What Rufus says about your products organically is the foundation your prompts will be built from — and now it's also a preview of what you're about to start paying to amplify. If Rufus describes your product inaccurately, or ignores your strongest use case, fix the listing before March 25.

If you have variation families, this is urgent: Amazon's review split policy (effective February 12, full enforcement through May 31) stripped pooled reviews from child ASINs with functional differences. A child ASIN that dropped from hundreds of inherited reviews to a handful of standalone ones is producing weaker Rufus recommendations now. Don't let paid prompts drive traffic to a product variant that Rufus can't describe confidently. Audit your variation families first.

The last thing: document what Rufus says about your products today. The specific language, which attributes it surfaces, the sentiment it pulls from reviews, which use cases it mentions. That's your baseline. When CPC billing starts, you'll want to know whether your Rufus representation is improving or degrading. Most brand teams have nothing like this recorded anywhere.

March 25

Amazon's playbook for major ad formats is consistent. The free attribution period exists to prove value and build the data layer Amazon needs to price it. The brands that ran Sponsored Prompts during the free window now understand what they're buying. Everyone else starts March 25 pricing blind.

Rufus is handling a massive and growing share of Amazon product discovery. Sponsored Prompts put brands directly in those conversations — at the moment someone is asking a question, not scrolling past a banner. That's a different kind of placement than what Amazon has sold before.

The window to understand your organic Rufus visibility before the paid layer starts is 12 days. If you want to see exactly what Amazon Rufus is saying about your products — which queries you appear in, how you're described, what signals are working — AgentBuy tracks that.

The bill starts March 25. Know what you're buying.