2026 comparison

Natalia vs Delos: an AI phone system built for inbound calls versus general-purpose "AI Workers"

Two different answers to "an AI that greets and responds". Natalia is an AI phone system built for your customers' inbound calls, with WhatsApp and SMS follow-up. Delos offers a catalog of "AI Workers", general-purpose AI teammates that work inside Slack, Teams and your tools, including a receptionist (Belle) and an IT support worker. A factual comparison: every data point about Delos is sourced and dated.

Independent comparison, not affiliated with Delos. "Workers Delos" is offered by DELOS INTELLIGENCE (Paris).

Methodology

  • Delos sources: official website delos.so (home page, worker catalog, profiles of Belle "Receptionist" and Atif "IT Support", pricing, security section, llms.txt), accessed on October 8, 9 and 11, 2026, and the DELOS INTELLIGENCE record in the official French company directory.
  • Natalia sources: pricing, helpdesk, voice assistant, security and sovereignty pages on getnatalia.com.
  • Comparison date: October 9, 2026, updated October 11, 2026.
  • Scope: the two areas where the offers genuinely overlap, answering calls (receptionist) and level 1 IT support. Delos's other workers (general assistant, content creation, marketing, development…) have no Natalia equivalent; they are covered in "When Delos is a better fit".
  • The Delos website is an application whose profile text loads in the browser; we cite the relevant page and keep a timestamped copy of the displayed text.
  • No unverifiable claims: certifications displayed by Delos are reported as displayed, without verification on our side.

Comparison table

● Verifiable fact (public source) ○ Not publicly documented

Criterion Natalia Delos (Workers Delos)
Product category ● AI phone system and customer-facing agents (voice, WhatsApp, SMS, chat, email), plus call analytics ● Catalog of "AI Workers": autonomous AI agents specialized by function (marketing, development, HR, finance, support…) working inside Slack, Teams and "3000+" tools [5]
Phone answering ● Core of the product: answers inbound calls 24/7, understands the request, qualifies, transfers to the right team with a summary, or follows up over WhatsApp and SMS ● The receptionist Belle "welcomes visitors, manages the switchboard and emails, routes requests, and organizes appointments and meeting rooms" [1]
Level 1 IT support ● Voice helpdesk: answers support calls, resolves simple requests (password reset, ticket status), creates the ticket in ServiceNow, GLPI or Jira ● Atif, "IT Support" worker: "handles IT tickets, resolves incidents, manages access rights"; listed missions include answering the phone; integrations Notion, Jira, Slack [2]
Who it serves ● Your customers and users who call or message you (external customer service, support) ● Mainly your teams: each worker receives its missions in Slack, Teams or by email and runs internal tasks [5]
Receptionist channels ● Voice calls, WhatsApp, SMS; chat and email through the dedicated agents ● Integrations listed on Belle's profile: Notion, Slack, Microsoft Teams, WhatsApp, Salesforce, HubSpot, Apollo [1]
Pricing model ● Monthly plans with published prices: voice agent from €99/month excl. VAT with no commitment (€87 with the annual commitment), minutes credit included, €0.20/min beyond, no setup fee ● Credit-based plans in euros, billed monthly: from €100/month (Solopreneur) to €2,500/month (Worker Pack), Enterprise on quote; an additional fee applies "to buy or rent a worker" [3]
Trial ● Demo on your own calls ● "1 week or 10k credits free" on the first two individual plans, no credit card required [3]
Data hosting ● Managed edition, or in your own datacenter (disconnected on-premise edition) ● Servers in the European Union (security page: "European data hosting") [4]
Stated compliance ● GDPR, 99.9% SLA ● Delos displays GDPR compliance, ISO 27001 certification and SOC 2 (security page) [4]
Publisher ● France ● DELOS INTELLIGENCE, Paris (France) [6]

Every data point about Delos comes from the official website delos.so, accessed on October 8, 9 and 11, 2026, and from the official French company directory; a timestamped archive is kept for each page. For an up-to-date evaluation, contact the vendor directly.

Sources and archives

What sets Natalia apart

  • A product built for the phone

    Natalia answers your customers' calls, understands the request and transfers with context. At Delos, running the switchboard is one of the missions of a general-purpose receptionist who also handles visitors, the inbox and meeting rooms.

  • Level 1 support all the way to the ticket

    The Natalia helpdesk answers the phone, resolves simple requests and creates a complete ticket in ServiceNow, GLPI or Jira. Your technicians pick up the case without calling the user back.

  • Readable pricing, on-premise option

    Monthly plans with published prices, no conversion into credits. A disconnected on-premise edition runs in your own datacenter for sensitive environments.

When Natalia fits

  • You want to automate how your calls are answered: pick up every inbound call, qualify, transfer to the right team or follow up over WhatsApp and SMS.
  • You want to automate level 1 IT support over the phone, with ticket creation in your ITSM.
  • Your calls must stay in your own datacenter, with the disconnected on-premise edition.
  • You prefer a monthly plan with a published price rather than a credit budget.

When Delos is a better fit

  • You want an internal, general-purpose AI teammate that works in Slack or Teams: calendar, meeting prep, inbox, administrative tasks. Natalia is not an executive assistant.
  • You need content creation (articles, posts, visuals, social media publishing). Natalia does not produce content.
  • You want to cover several functions (marketing, development, finance, HR) with a single tool.
  • Your receptionist must also greet visitors in person and book meeting rooms.

Frequently asked questions

Does Delos offer an AI receptionist?
Yes. The Delos catalog includes Belle, a receptionist who, according to the official website accessed on October 9, 2026, welcomes visitors, manages the switchboard and emails, routes requests and organizes appointments and meeting rooms. Natalia is a dedicated AI phone system: it answers your customers' inbound calls 24/7, qualifies the request and transfers with a summary, or follows up over WhatsApp and SMS.

What is the difference between an AI Worker and an AI phone system?
An AI Worker, as Delos defines it, is an autonomous AI agent specialized by function that receives its missions from your teams in Slack, Teams or by email. An AI phone system like Natalia talks directly to your customers and users over the phone, WhatsApp and SMS, and integrates with your telephony, CRM and ITSM.

Which one should I choose for level 1 IT support?
Delos lists Atif, an "IT Support" worker that handles tickets, resolves incidents, manages access rights and answers the phone, integrated with Jira, Notion and Slack. The Natalia helpdesk is a voice agent: it answers support calls, resolves simple requests such as password resets and creates the ticket in ServiceNow, GLPI or Jira. If your users call, Natalia is built for that channel; if support mostly runs through Slack or Teams, the Delos approach is closer.

How much does Delos cost compared with Natalia?
Delos charges credit-based plans in euros, billed monthly: from €100/month to €2,500/month depending on the number of active workers, an Enterprise plan on quote and an additional fee to buy or rent a worker (pricing page accessed October 9, 2026). Natalia publishes monthly plans: the voice agent starts at €99/month excl. VAT with no commitment, or €87 with the annual commitment, minutes credit included.

Can Natalia create content or manage an executive's calendar?
No. Natalia answers your customers' calls and messages and analyzes your calls; it does not write posts, produce visuals or manage an executive's calendar or inbox. For those needs, a catalog of AI teammates such as Delos is a better fit.

Where does Delos host the data?
According to its security page accessed on October 11, 2026, Delos stores data on servers located in the European Union ("European data hosting"), with no transfer outside the EU without explicit consent, and displays GDPR and SOC 2 compliance. Natalia offers a managed edition or a disconnected on-premise edition installed in your own datacenter.

Further reading

Looking for an AI to answer your calls?

We'll show you Natalia on your own calls, in 30 minutes.

See a demo