Delphi AI vs Coachvox: an honest head-to-head
August 14, 2026 · 6 min read · by the hiy team
The short answer
Disclosure first: we make hiy, a third product in this category, so read this knowing a rival wrote it. Delphi AI vs Coachvox is a choice between a broad public-persona platform and a narrow coach-focused one: Delphi publishes a persona at audience scale behind a public four-tier price ladder, while Coachvox builds an AI clone of a coach, aimed at sitting on a coaching website and capturing leads.
So: if you want a public persona at audience scale, and voice matters, Delphi. If you are a coach who wants one clone on a homepage doing lead capture, Coachvox is the closer fit. The rest of this page is the evidence for that sentence, kept to what the two vendors publish.
One more thing worth saying out loud. As far as we can tell, most of what ranks for this comparison — this page included — was written by somebody selling a third product. That is the honest state of the corpus. The best we can do about it is confine each claim to something you can check on the vendors' own pages, date it, and link it so you can re-check.
What Delphi is, per its own pricing page
Delphi is a platform for publishing a persona trained on your material that answers as you, in text and by voice. As of August 2026, delphi.ai/pricing lists four tiers:
- Free — $0.
- Builder — $79/month, listed with voice calling, millions of training words, contact collection, an analytics dashboard, and integrations.
- Scaler — $299/month.
- Immortal — custom pricing.
Two things that ladder tells you about the product's intent. First, voice calling sits on the mainstream paid tier rather than in an enterprise add-on — Delphi treats hearing the person as core, not exotic. Second, the quantities Delphi chooses to name on Builder — training words, contacts collected — are audience-shaped. That is how you price a thing meant to serve a crowd, not a mailing list.
A caution about numbers you will find elsewhere. Third-party software directories currently list Delphi's entry paid tier at figures that do not match the vendor's own page, and do not match each other either. When a directory and the vendor disagree, believe the vendor and check the date. That single habit will save you more money than any comparison table, ours included.
What Coachvox is, and what it costs
Coachvox is an AI clone product built for coaches, which makes it a deliberately narrower proposition than Delphi's. The category is a clone trained on one expert's material, living on that expert's own site, holding the first conversation with someone who was going to fill in a contact form anyway. Whether that shape fits is mostly a question about your business rather than about the software.
On pricing, Coachvox does the opposite of a ladder: as of 14 August 2026 its site advertises one plan at $83/month, billed annually, described as everything included, with a 14-day free trial. There is no permanently free tier — the trial is a trial. One plan is a defensible choice for a product aimed at a single profession, because there is no "which tier am I" question to get wrong.
A caution here too. Third-party directories quote Coachvox at figures above that, and at least some of the gap is the difference between an annual-billed monthly rate and a month-to-month one. Check the vendor's own page and check the billing term before you compare anything to anything.
Delphi AI vs Coachvox, side by side
The short version: Delphi sells a ladder you climb as your audience grows, Coachvox sells one plan aimed at one profession. Every cell below was read off the vendors' own pages on 14 August 2026. Where something is not advertised, the cell says that rather than guessing at it.
| Delphi | Coachvox | |
|---|---|---|
| Built for | Creators, public figures, anyone with an audience | Coaches |
| Voice | Voice calling listed on the $79 Builder tier | Not advertised |
| Pricing | Four tiers: $0, $79, $299, custom | One plan, $83/month billed annually |
| Free tier | Yes, $0 | No — 14-day trial only |
| Quantities named | Training words, contacts collected | Not published in tier form |
Read the pricing row as two different bets rather than a winner. Delphi's ladder means a small creator starts at nothing and pays more as the audience grows; the ceiling questions — training words, contacts — arrive later. Coachvox's single plan means a coach pays one number from day one and never thinks about tiers again. Which is cheaper depends entirely on where you sit on that curve, and a comparison table cannot answer that for you.
Which one should you actually pick?
Pick Delphi if any of these is true: you want people to be able to call your twin and hear a voice, which Delphi lists on its Builder tier; your audience is large enough that training-word ceilings and contact limits are a real constraint; you want to start at $0 and scale spend with the audience rather than commit to a flat monthly rate; or you care that the roster includes names people recognize.
Pick Coachvox if you are a coach whose twin has one job — sitting on your site, holding a first conversation, and handing you a lead — and you would rather buy something aimed at your exact profession than configure something general. A narrower product is not a lesser product. It is a different bet, and for a solo coaching practice it is frequently the right one.
The honest version
Neither of these products, and no product in this category, solves the problem that actually determines whether a twin is worth publishing: what it does when it does not know something.
That is the failure mode nobody's marketing page addresses. A twin trained on a hundred blog posts will still be asked about your rates in Canada, your view on a framework you have never written about, and whether you can start in March. If the answer is a confident improvisation in your voice, you have not automated your expertise. You have published a stranger with your face on it, and the damage lands on your reputation rather than the vendor's.
So when you trial either one, spend the trial on the edges, not the middle. Anyone's demo handles the questions your best content already answers.
Where we come in, disclosed
We make hiy, which is why you should weigh the paragraphs above more heavily than this one. Straight concessions first: hiy has no voice. Delphi has voice calling and we do not, so if a caller hearing your voice is the point, we are not the answer today. We are also smaller, newer, and our roster contains nobody you have heard of.
What we build instead is the thing the section above describes. Every grounded answer carries the passage it came from, so a visitor can open the source and check you. When a question falls outside your material, the twin says so in your tone and shows the searches it ran before giving up — then queues the question for you, and your one-line answer closes that gap permanently. None of it sits behind a plan: visitors always chat free, and paying removes our credit line, not our honesty features.
We have written the two direct head-to-heads separately, both with the same disclosure: hiy vs Delphi and the Coachvox comparison. This page exists because nobody had compared the two of them to each other and said out loud who was holding the pen.
What to do next
Run the same three questions against all three products, in a trial, in this order:
- Ask it something your material genuinely does not cover. Admission, or improvisation in your name?
- Ask it where an answer came from. Can a visitor see the source, or do they have to take the twin's word for it?
- Ask what happens when you leave. Can you read everything it knows, correct it, unpublish it, and take your data out?
Whichever product survives those three, buy that one. Our live demo is set up so you can run all three on us, with the edge case deliberately left in — a better use of ten minutes than another comparison table.