Multilingual AI agent: serve in Spanish, English and more without hiring staff

If your business receives international customers, you need to serve them in their language. Hiring bilingual staff is expensive. A multilingual AI agent is instant.

The real problem

A restaurant in Barcelona receives customers in Spanish, Catalan, English and French. Hiring 4 bilingual receptionists would cost over €8,000/month. With AgenteUno, a single agent serves in all languages for €79/month.

How it works

Automatic language detection

The agent detects the language from the customer's first words:

• Chat/WhatsApp: Real-time text analysis
• Voice: Accent and vocabulary detection in the first 2 seconds
• SMS: Linguistic message analysis

Native response

It's not machine translation. The agent has:

• Natural vocabulary and expressions in each language
• Localized date, currency and address formats
• Formal/informal register based on culture
• Idioms and colloquial expressions

Supported languages

Language	Chat	Voice	SMS
Spanish (Spain)	Native	Native	Native
Spanish (LATAM)	Native	Native	Native
English	Native	Native	Native
French	Native	Good	Native
Portuguese	Native	Good	Native
German	Good	Good	Good
Italian	Good	Good	Good

Setup in 3 steps

1. Activate languages: In the agent settings, select the languages you need
2. Knowledge base per language: Upload content in each language or let the agent translate automatically
3. Test: Send messages in different languages and verify responses

Case: real estate agency in Marbella

An agency selling properties to British, German and Spanish clients deployed a trilingual agent:

• Result: 45% more international leads captured
• Response time: From 2 hours (waiting for the right language agent) to 5 seconds
• Conversion: 28% more international sales in the first quarter

The native Spanish advantage

Most AI voice platforms are designed for English. Spanish is added as a translation, causing:

• Grammatical gender errors
• Literal translations that sound artificial
• Regional accent problems

AgenteUno was built from the ground up for Spanish. English and other languages are equally native, but Spanish is our priority.

Set up your multilingual agent →