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Company reportedLive since 2026Added Oct 2026

MercadoLibre

MercadoLibre's Seller Assistant now reaches sellers behind almost half of its marketplace sales

MercadoLibre, Latin America's largest online marketplace, offers sellers a generative AI assistant that helps improve listings and answers help requests. In its Q2 2026 letter the company says sellers representing almost half of its sales volume use it, and it solved over half of Help Portal requests alone.

Raise productivityImprove customer experienceCut costs

Key figures

Copied exactly from the sources. Copy any figure with its citation.

Almost half

Share of marketplace GMV represented by sellers using the Seller Assistant, Q2 20261

21%

MoM

Growth in Seller Assistant daily active users, June 2026 compared with May1

More than half

Share of Help Portal requests solved by the assistant without any human intervention, Q2 20261

Basically 20%

Share of GMV the assistant advised, as described on the Q4 2025 earnings call2

What it took

CostNot disclosed
TeamNot disclosed
TimelineNot disclosed

Cost, team size and timeline were not disclosed in the sources.

The problem

MercadoLibre runs a marketplace in many Latin American countries. Sellers need help improving their listings and getting answers from support, and that help is costly to deliver by hand as the marketplace grows.

What they built

The company built a Seller Assistant, a generative AI tool available inside its platform. Executives describe it as advising sellers on how to improve their live listings and handling customer support questions. A related assistant answers requests on the seller Help Portal.

How they did it

The sources give no detail on build, cost, team or models. They describe a steady rise in use: more sellers, more interactions per seller, and a growing share of requests resolved by the assistant.

Results

In its Q2 2026 letter, MercadoLibre says sellers representing almost half of its marketplace sales volume use the Seller Assistant, and that daily active users grew 21% month on month in June. It says more than half of Help Portal requests in the quarter were solved by the assistant without human intervention. On the Q4 2025 call, a company executive said that basically 20% of sales volume was advised by the assistant.

Lessons for your project

  1. Track how much business your assistant touches, not only how many people tried it. MercadoLibre reports the share of sales volume tied to its users.

  2. Watch the resolved-without-a-human rate for support requests, and let it grow as engagement grows.

  3. Pair an assistant for sellers with a support use case. The same tool advises on listings and answers help requests.

  4. Be careful what 'advised' means. A share of sales that an assistant advised is not a share of sales it caused.

Caveats

  • Both sources are MercadoLibre's own statements: a shareholder letter filed with the SEC and an earnings call transcript. No independent source confirms the figures.
  • The assistant's share of sales is a measure of use or advice, not of sales it generated. The company reports no revenue effect for the assistant.
  • The sources do not say when the assistant launched. The deployed date shows 2026, the year of the earliest source that describes it as running.
  • No model or vendor is named. The Q4 2025 figure is the executive's spoken wording on the call, and its scope differs from the Q2 2026 measure.
  • The sources also describe other MercadoLibre AI work, such as engineering agents and a Mercado Pago assistant, which is not covered here.

Sources

  1. MercadoLibre Letter to Shareholders, Q2'26 Results

    MercadoLibre (SEC Form 8-K, Exhibit 99.1) · 2026-08-05 · Filing · sec.gov

  2. MercadoLibre (MELI) Q4 2025 Earnings Call Transcript

    The Motley Fool · 2026-02-24 · Earnings call · fool.com

Summarized in our own words from the sources above. Spotted an error? See corrections.

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