How our AI really works

Nexus AI orchestrates three families of models, each chosen for a specific purpose:

• LLM (understanding and generation): GPT-4o, GPT-4.1, Claude Sonnet (Anthropic), Gemini 2.5 (Google). We select based on use case, language and cost.
• Voice (Speech-to-Text): OpenAI Whisper, Deepgram. Real-time call transcription.
• Voice (Text-to-Speech): ElevenLabs, OpenAI Voice. Natural voice in 4 native languages.

All models are accessed via enterprise APIs of the respective providers, with agreements forbidding the use of your data to train public models.

• Primary storage: Microsoft Azure, Italy North (Milan) and West Europe (Amsterdam) regions. Data never leaves the EU.
• Conversations: retained for 90 days by default. Configurable (from 30 to 365 days) based on your needs.
• Voice transcripts: retained for 30 days, then automatically deleted.
• Training data: only documents YOU upload to the Knowledge Base. Never other customers' data, never scraped public data.

• We use data only to deliver the service to you.
• We encrypt at rest (AES-256) and in transit (TLS 1.3).
• Data access restricted to authorized Bigei SRL personnel, with audit logs.
• We don't sell your data. Ever.
• We don't train our (or others') public AI models on your data.
• We don't share conversations between different customers.

• GDPR: compliant. Internal DPO appointed. DPA (Data Processing Agreement) available.
• EU AI Act: Nexus AI falls in the 'limited risk' category. We provide in-conversation transparency (the user knows they're talking to an AI), model audits, decision logs.
• CCPA (California): for customers with US users. Deletion and access rights.
• 99.9% SLA: guaranteed on Pro and Enterprise plans.

When our customers' customers talk to Nexus AI, this happens:

• The AI always introduces itself as such ('I'm the AI assistant of [company name]'). Never deceives.
• The user can always ask 'I want to talk to a person' and get immediate transfer.
• For voice calls, at the start we say the conversation may be transcribed (explicit consent).
• On WhatsApp, the first message declares the assistant's AI nature.

• Export: at any time you can download all your data (conversations, CRM, KB) in JSON/CSV format from the dashboard.
• Deletion: 1 click from the dashboard. Complete deletion within 30 days of request.
• Audit log: always see who (on your team or ours) accessed what.
• Custom DPA: available on request for Enterprise plans.