Custom GPTs are powerful general assistants. Zivvo is a customer-facing AI agent that runs on your channels and answers from your real business data. Here's the honest break-down.
You can embed a Custom GPT iframe, but it lives inside the OpenAI walled garden — no native Instagram / WhatsApp / email coverage, no escalation queue, no audit log, no faithfulness check. For internal productivity Custom GPTs are great; for customer-facing AI they are not the right shape.
Zivvo uses Google's Gemini 2.5 Flash for the main reasoning loop and a smaller utility model for routing. Embeddings use OpenAI text-embedding-3-small. The model choice is invisible to you — what matters is the verified-or-escalated discipline around it.
It depends on who is using it. For a 50-employee team needing an internal AI, Business at $25/user is cheaper than Zivvo. For a 50-message-per-day customer-facing inbox, Zivvo at £29 is cheaper than wiring multi-channel infrastructure around Custom GPTs.
ChatGPT Team is excellent for internal use — drafting, brainstorming, summarising tickets. It does not replace a customer-facing channel layer. Many small teams use ChatGPT Team for internal productivity AND Zivvo for customer-facing replies.
Not natively. The OpenAI API can power anything if you build it, but there is no "connect WhatsApp + Instagram + email and reply automatically" turn-key product from OpenAI. Zivvo is that product.
GPT-4 / GPT-5 hallucinates less than older models but it still hallucinates. Zivvo runs every reply through a faithfulness NLI check against your KB and holds it back if it cites something not in the KB. That is a different architectural commitment, not a model-quality argument.
Yes — and so does Zivvo (image input on Instagram DM on Pro+ plans). The difference is again the channel-integration layer: Zivvo handles the connection to the platform, the escalation queue, the audit log, and the brand-voice tuning.
You can build a public Custom GPT and your customers can find it in the GPT Store. But they have to be ChatGPT users, find your GPT, start a conversation in OpenAI's app. Most SMB customers reach you on Instagram, WhatsApp, email — channels OpenAI does not connect to.
OpenAI: US-based, GDPR-compliant via SCCs and DPA. Zivvo: EU-hosted (Hetzner Germany), GDPR-compliant by default. If EU residency is a hard requirement, Zivvo is the simpler answer.
Yes — and many teams do. ChatGPT for Business for internal team productivity, Zivvo for customer-facing channels. They solve different jobs.
Free plan: 2 agents, 50 messages per month. No credit card. 10-minute setup.
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