Luzia Not Working on WhatsApp? Best Luzia Alternatives in 2026

What happened to Luzia on WhatsApp?

Luzia was a WhatsApp success story. The Madrid-based startup launched in 2023 and grew fast by doing something simple: you saved a number, said hi, and had a friendly AI in your chats. Its viral trick was transcribing voice notes you didn't want to listen to, and it passed 20 million users within its first eight months.

Then the ground moved. Meta announced it would close the WhatsApp Business API to general-purpose AI chatbots from January 15, 2026. ChatGPT, Perplexity and Luzia were among the assistants named as affected; Meta's own Meta AI stays. Luzia's CEO called it a setback, and the company has been steering users to its own app while it leans into ads and in-chat shopping.

The rules haven't played out identically everywhere — in Brazil, for example, a regulatory dispute pushed Meta toward charging AI providers per message instead. But for most people, the Luzia they used in WhatsApp is no longer the easy option it was. So what do you use instead?

First, what did you actually use Luzia for?

The right replacement depends on the job. Most Luzia users fall into one of four groups.

Quick answers and curiosity: 'What's the capital of Mongolia?', 'Explain this bill.' Voice notes: 'What does this 3-minute audio say?' Writing and translation: 'Make this message more polite', 'Translate this to English.' Getting stuff done: 'Remind me', 'Keep a list', 'Help me with this PDF.'

Luzia was great at the first three. It was never really built for the fourth — it answered in the moment but didn't hold a task and come back to you later. That's worth knowing, because the fourth group is where the best alternatives differ most.

The best Luzia alternatives in 2026

Meta AI — best for quick answers inside WhatsApp. It's already built into WhatsApp for most people and it's free. For questions, rewriting a message or making an image, it's the closest like-for-like swap for casual Luzia use. It's a conversational assistant, not a task manager, so don't expect it to chase anyone for you.

Luzia's own app — best if you loved Luzia itself. Same personality and study-help focus, just outside WhatsApp. The trade-off is one more app to open.

ChatGPT — best for deeper chat, writing and research. It's more powerful than Luzia for serious work, with a free tier and paid plans from $8 to $200 a month. Like Luzia, it no longer lives inside WhatsApp, so it's a separate app.

Agent Sonic — best for getting things done inside WhatsApp. Sonic lives entirely in a WhatsApp chat and focuses on follow-through: reminders that fire, to-dos that stick, follow-ups that report back, automatic group reminders, and reading the documents people send you. If you used Luzia and wished it would remember things, this is the upgrade.

Luzia vs Agent Sonic: head to head

The one-line version: Luzia answers you in the moment; Sonic holds the task and comes back to you.

Ask Luzia 'Remind me to pay the electricity bill on the 10th' and you'd get a friendly reply. Ask Sonic and on the 10th you get the reminder — and you can make it repeat: 'Remind me to pay the electricity bill on the 10th of every month.'

It goes further with other people. 'Ask Carla if she sent the invoice and tell me what she says' — Sonic messages Carla, waits, and reports back. 'Every Sunday at 8, remind the football group about Tuesday practice' — Sonic posts it every week without you touching it.

Documents are the other big gap. Forward Sonic a PDF contract, an invoice or a spreadsheet and ask 'What's the cancellation clause?' or 'What's the total for this month?' It also remembers context you give it, searches the web live, creates and edits images, and connects to Google Calendar, Sheets and Docs.

Where Luzia still shines: it's a warm, chatty companion with a strong study-help angle and a big Spanish- and Portuguese-speaking community. If that's what you want, its app is the natural home.

What about voice notes?

Voice-note transcription was Luzia's signature move, so it deserves its own answer. WhatsApp now offers built-in transcripts for voice messages on supported devices and languages — check the voice message settings in your WhatsApp app. For simply reading an audio you don't want to play, that may be all you need.

Where an assistant still helps is turning voice into action. Send Sonic a voice note like 'Remind me tomorrow at 7 to call the plumber, and add dish soap to my shopping list' and it becomes a reminder and a to-do, not just text. That's handy while driving, walking or cooking — anywhere typing is a pain.

How to switch from Luzia in five minutes

Sonic is available now — get access at tryagentsonic.com/contact and you'll receive its number and onboarding.

Frequently asked questions