
Meet Fluid AI — your fully autonomous call attendant for sales, support, reception, and more. Keep conversations moving, and connect callers with a live person whenever needed.
Human-sounding voice agents that answer, understand, and act — across every line and location.
Responses land fast enough to feel like a natural, real-time conversation.
Callers can cut in, change course, or ask follow-ups — Fluid AI adapts mid-sentence.
Engage prospects, resolve questions, and welcome and route every caller.
Warm-transfer to the right person with full context when a human touch is needed.
Schedule appointments and qualify leads against your criteria, right on the call.
Log calls, notes, and outcomes to the CRM and calendar tools you already use.
Answer every incoming call and run outbound follow-ups, reminders, and campaigns.
Bring your own LLM and custom voices, with a full API and webhooks for builders.
A sample call on Red Effect's live Fluid AI line (East Lansing). Lightly edited excerpt.
Infrared fitness studio · East Lansing, MI
East Lansing line · 2:44
A qualitative look at approach and fit. Fluid AI pairs a ready-to-run attendant for businesses with a full developer platform.
| Fluid AI | Retell AI | Smith.ai | Vapi | |
|---|---|---|---|---|
| Primary approach | Turnkey AI attendant + developer platform | Developer-focused voice agent platform | Receptionist service (AI and human agents) | Developer-first voice AI API |
| Best fit | Businesses of any size, single or multi-location | Teams building their own voice agents | Small businesses wanting managed answering | Engineering teams composing custom stacks |
| No-code setup | ✓ Guided onboarding | Builder tools; technical setup typical | Managed by provider | Primarily code / API |
| Live human transfer | ✓ Built in, with context | Supported via configuration | Core to service | Supported via configuration |
| Custom LLM & voices | ✓ Bring your own | Supported | Not the focus | Supported |
| Multi-location dashboard | ✓ Native | Build your own | Varies by plan | Build your own |
Comparison is a general, qualitative summary for mockup purposes; verify competitor capabilities against their current published materials before launch. Trademarks belong to their owners.
Simple monthly plans with included minutes, transparent overage and 2 months free on annual billing.
See pricing →Discover what Fluid AI can handle for your business.
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