Reach is usually the deciding factor
WhatsApp is the default messaging app for most of Latin America, much of Europe, and large parts of Asia and Africa — if your customers already have a phone number and a preferred way to text businesses, it's very likely WhatsApp. Telegram has real, dedicated audiences too, particularly among tech-savvy users and in specific regions and communities, but it's rarely the primary channel most of a general consumer base already has open.
The practical question isn't "which platform is better" in the abstract — it's "where are the people who already want to talk to me." Check your own customer base before picking a default.
Setup, verification, and cost
The WhatsApp Business API requires a formal business verification process through Meta and typically a message-based pricing model once you're past the free service window with a given customer — it's built for scale, but it takes real setup before you can send a message.
Telegram's Bot API, by contrast, is close to instant: register a bot with a few messages to BotFather and it works. There's no per-message cost from Telegram itself, and no business verification gate. That makes it a genuinely good place to start fast, or to run alongside WhatsApp for a segment of your audience that prefers it.
What stays the same either way
On iNTELIGENCIA VIVA both already work today as direct contact links in the free Widget — a visitor taps and lands in your WhatsApp or Telegram. As integrated inbox channels of the paid platform, they are on the roadmap (mobile agent apps ship first, then Telegram, then more): when each one lands, its conversations will sit next to your web chat, with the same AI handling, the same human handoff rules and the same analytics — no channel gets special treatment.
A reasonable way to decide
If you already have a WhatsApp number your customers text you on informally, formalize that into the Business API rather than starting a new habit elsewhere — you're building on an existing behavior. If you're starting from zero and want to validate that live, AI-assisted chat works for your business before doing formal verification, Telegram is the lower-friction way to prove the model in days, not weeks, and you can add WhatsApp once you know it's worth the setup.