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Customer Support · head to head

Cresta vs Seamless.AI

Cresta logo

Cresta

Customer Support

Real-time AI coaching and autonomous agents that sit on top of an existing contact centre platform

From
On request
Free plan
No
Full reviewWebsite
Seamless.AI logo

Seamless.AI

CRM

Sales lead search engine for finding contact and company data

From
Free
Free plan
Yes
Full reviewWebsite

The short version

  • Only Seamless.AI has a free tier, so it costs nothing to try first.
  • Each has a real cost: Cresta cresta depends on the CCaaS platforms it integrates with, and NICE, Genesys and Five9 are all shipping native real-time assist and auto-QA of their own, so at renewal you may be paying twice for capability your platform vendor will bundle at a discount.; Seamless.AI pro and Enterprise pricing is not published and requires contacting sales.
  • They diverge on capability: Cresta covers Real-time agent assist, Seamless.AI covers Contact search.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which Cresta and Seamless.AI actually diverge.

Attributes where Cresta and Seamless.AI differ
AttributeCrestaSeamless.AI
Starting priceOn requestFree
Pricing modelquotefreemium
Free tierNoYes
CategoryCustomer SupportCRM

Identical on both: platforms (Web, API), user rating (Not yet rated).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Cresta

  • Real-time agent assist
  • Autonomous AI Agent
  • Conversation intelligence
  • Automated quality management
  • Behavioural coaching
  • Knowledge surfacing
  • Multilingual deployment
  • Supervisor dashboards

Only in Seamless.AI

  • Contact search
  • Real-time search engine
  • Job change alerts
  • Buyer intent data
  • CRM and API integrations
  • Enterprise security

What people use each for

The jobs each tool is most often brought in to do.

Cresta

  • A 1,500-seat telecommunications sales centre that wants conversion lift from live agent prompting without migrating off an incumbent Genesys deploymentnot Seamless.AI
  • An insurance contact centre replacing manual QA sampling of two per cent of calls with automated scoring of every call for regulatory evidencenot Seamless.AI
  • A retail support operation deploying autonomous voice agents on high-volume order status calls while keeping humans on complex claimsnot Seamless.AI
  • A contact centre director who needs to prove which specific agent behaviours drive outcome differences, rather than relying on post-call survey scoresnot Seamless.AI

Seamless.AI

  • B2B sales teams building prospecting listsnot Cresta
  • Finding verified emails and phone numbers for outreachnot Cresta
  • Tracking job changes among target contactsnot Cresta
  • Identifying accounts showing buyer intentnot Cresta

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Cresta

  • Cresta depends on the CCaaS platforms it integrates with, and NICE, Genesys and Five9 are all shipping native real-time assist and auto-QA of their own, so at renewal you may be paying twice for capability your platform vendor will bundle at a discount.
  • Pricing is not published and contracts are seat-based and annual at enterprise scale, which in practice means six-figure commitments and a procurement cycle measured in months rather than weeks.
  • Real-time guidance only pays back where conversation outcomes are measurable and repeatable, so support teams handling long, varied, low-volume cases rarely recover the licence cost.
  • Deploying real-time assist requires agents to accept on-screen prompting mid-call, and contact centres with strong union representation or experienced tenured agents frequently see adoption resistance that no amount of model quality fixes.
  • Automated quality scoring changes what agents are measured on, and organisations that switch from human QA without rewriting their evaluation rubric and appeals process create industrial-relations problems that surface months after go-live.

Seamless.AI

  • Pro and Enterprise pricing is not published and requires contacting sales.
  • Free plan is limited to just 50 credits and a single user.
  • Data accuracy for contact details can vary and requires verification before outreach.
  • Credit-based usage model means heavy prospecting can exhaust allotments quickly.

Pricing, plan by plan

Cresta

On request
  • Cresta$undefined/year
    • AI Agent
    • Agent Assist
    • Conversation Intelligence

Seamless.AI

Free
  • FreeFree
    • 1 user
    • 50 credits
    • Email and cell phone search
  • Pro$undefined/mo
    • Per-user pricing
    • Unlimited exports
    • Annual credit packages
  • Enterprise$undefined/mo
    • Unlimited users
    • Custom credit allotments
    • Dedicated success manager

Which should you pick?

Choose Cresta if

  • You need real-time agent assist.
  • You work on Web, API.
  • You also want autonomous ai agent.
Cresta review

Choose Seamless.AI if

  • You need contact search.
  • You want to start without paying.
  • You work on web, api.
  • You also want real-time search engine.
Seamless.AI review

Questions people ask

Is Cresta or Seamless.AI better?
Neither clearly leads. Cresta starts at On request and Seamless.AI at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Cresta or Seamless.AI?
Seamless.AI has a free tier; the other does not. Paid plans start at On request for Cresta and Free for Seamless.AI.
Does Cresta or Seamless.AI run on more platforms?
Cresta runs on Web, API. Seamless.AI runs on web, api.
Can I use Seamless.AI for free?
Yes. Seamless.AI has a free tier, so you can try it without paying. Cresta starts at On request.
What is Cresta best used for?
Cresta is most often used for a 1,500-seat telecommunications sales centre that wants conversion lift from live agent prompting without migrating off an incumbent genesys deployment, an insurance contact centre replacing manual qa sampling of two per cent of calls with automated scoring of every call for regulatory evidence, a retail support operation deploying autonomous voice agents on high-volume order status calls while keeping humans on complex claims, a contact centre director who needs to prove which specific agent behaviours drive outcome differences, rather than relying on post-call survey scores. Of those, a 1,500-seat telecommunications sales centre that wants conversion lift from live agent prompting without migrating off an incumbent genesys deployment and an insurance contact centre replacing manual qa sampling of two per cent of calls with automated scoring of every call for regulatory evidence are not what Seamless.AI is typically brought in for.
What can Cresta do that Seamless.AI cannot?
Cresta covers Real-time agent assist, Autonomous AI Agent, Conversation intelligence, Automated quality management. Seamless.AI covers Contact search, Real-time search engine, Job change alerts, Buyer intent data.

Answered from the vendors’ own pages

Cresta: Does Cresta replace my contact centre platform?

No. It is designed to sit on top of NICE, Genesys, Five9, Amazon Connect and similar platforms, which is why it is chosen where a full CCaaS migration is not feasible.

Seamless.AI: Is there a free plan, and what are its limits?

Yes, the Free plan includes 1 user and 50 credits, with access to email and cell phone search, real-time search, and API access.

Source
Cresta: What does it cost?

Cresta does not publish pricing. Contracts are seat-based and annual, and at the enterprise scale it sells into they are typically six figures per year.

Seamless.AI: How is usage metered on Seamless.AI?

Seamless.AI uses a credit system where credits are consumed to research contact details; paid Pro plans start with larger annual credit packages than the Free plan.

Source
Cresta: Is it viable for a contact centre under 100 seats?

Rarely. The commercial model, implementation effort and required outcome measurement all assume several hundred seats or more.

Seamless.AI: Does Seamless.AI have an API?

Yes, API access is included even on the Free plan, alongside export and integration capabilities on paid plans.

Source
Cresta: Who owns Cresta?

It is an independent venture-backed company, having raised roughly 282 million USD in total including a 125 million USD Series D in November 2024 co-led by World Innovation Lab and the Qatar Investment Authority.

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