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008 Agent vs Retell AI

Two fact sheets from our own research, side by side — pricing, platforms, API access and status re-checked by us rather than quoted from the vendors.

The short answer

Cheaper paid plan
Retell AI — $0.07/min vs $0.39/min for 008 Agent
Free plan
Only Retell AI (008 Agent has paid plans only)
Public API
Both have one
Higher Trust score
Retell AI — 92 vs 87 for 008 Agent
Best fit
008 Agent: Teams that want a voice agent live quickly without a dev sprint · Retell AI: Teams replacing an outbound qualification or booking script

From our own records as of each tool's last check. Anything we have not confirmed is left out rather than guessed. How we verify

008 AgentVoice AI agents that answer calls, update CRMs, and run scripted actions, billed per minute plus a monthly seat.Retell AIBuild and run AI phone agents that book, qualify and transfer calls, billed by the minute.

Side by side

Fact008 AgentRetell AI
CategoryVoice Agents & Phone AIVoice Agents & Phone AI
Pricing modelPaidFreemium
Starts at$0.39/min$0.07/min
Public APIYesYes
Trust score87 / 10092 / 100
PlatformsWeb, APIWeb, API
Company008 TECHNOLOGIES, S.L.Retell AI Inc.
Launched—2023
Last verifiedOct 15, 2026Oct 15, 2026

What our research says

008 Agent

008 Agent's pitch is speed of setup for voice agents that can actually take actions mid-call, not just transcribe. The per-minute pricing with an optional monthly instance fee rewards high call volume and penalizes low, sporadic usage.

Pros

  • Agents can take real actions - tickets, CRM updates, web search - not just talk
  • Entry tier has no monthly commitment, only per-minute usage
  • Built-in integrations with common CRM and helpdesk tools

Cons

  • No published flat-rate plan for predictable monthly budgeting at low volume
  • Even the pay-as-you-go tier starts with a demo request rather than self-serve sign-up
  • Per-minute pricing makes costs harder to forecast than a seat-based plan

Retell AI

One of the more honest voice-agent stacks: the pricing page breaks out infrastructure, TTS and LLM cost per minute so you can predict a call's cost instead of guessing. Telephony choice is wide and the concurrency allowance is generous. The catch is that per-minute billing plus add-ons makes a busy contact centre expensive fast, and the cheap end of the range only holds if you pick the cheap models.

Pros

  • Per-minute cost broken down by voice infrastructure, TTS provider and LLM on the public pricing page
  • Telephony via SIP trunking, Twilio and Vonage plus n8n, HubSpot, Make and Go High Level integrations
  • 20 concurrent calls included before any concurrency charge
  • Voice, chat and SMS agents share one platform and API
  • HIPAA path exists via a signed BAA covered in the terms of service

Cons

  • Cost per minute more than quadruples between the cheapest and most capable model combinations
  • Knowledge base, denoising, PII removal and branded caller ID are all metered extras
  • No flat-rate plan, so a spike in call volume lands straight on the invoice

Which one fits

Choose 008 Agent if you need

  • Teams that want a voice agent live quickly without a dev sprint
  • Businesses with high call volume that benefits from the discounted per-minute tiers
  • Companies already using Zendesk, Salesforce, or HubSpot

Choose Retell AI if you need

  • Teams replacing an outbound qualification or booking script
  • Contact centres that already have Twilio, Vonage or SIP trunking
  • Developers who want per-minute cost visibility before launch

008 Agent vs Retell AI: the questions people ask

Is 008 Agent cheaper than Retell AI?

On published entry prices, Retell AI starts lower — $0.07/min against $0.39/min for 008 Agent. Entry price is the lowest paid plan as we last verified it; what each plan includes differs.

Does 008 Agent or Retell AI have a free tier?

Retell AI has a free tier; 008 Agent has paid plans only.

Which has a public API, 008 Agent or Retell AI?

Both ship a public API, so either can be built on; the fact table above shows the platforms each one runs on.

More comparisons

All 008 Agent alternatives →Browse all Voice Agents & Phone AI →