Synthflow Alternatives in 2026: Per-Minute Prices Checked and Sourced
In short
Synthflow's pricing page now shows one Enterprise plan from $30,000 a year and no per-minute rate, so the alternatives sort by who runs the agent: Retell from $0.07 a minute, Bland from $0.12, Vapi from $0.05 plus pass-through and Autocalls from $34 a month if you will build it; 11x Julian or MyNewStaff Brooke if a vendor should; Paramount if you want consented calling built in your own accounts.
Synthflow's pricing page now shows a single Enterprise plan from $30,000 a year and no per-minute rate, so the alternatives sort by who will run the agent: Retell from $0.07 a minute, Bland from $0.12, Vapi from $0.05 plus model pass-through and Autocalls from $34 a month if someone on your side will build it; 11x Julian or MyNewStaff's Brooke if a vendor should; and Paramount, the company I run, if what you want is consented voice built in your own accounts and run for you. I am a vendor in the adjacent category and I rank nobody; the head-to-head is on Synthflow vs Paramount.
Every price was read from the vendor's own page on 2026-10-14 and linked in its row. The point matters on this query because the alternatives pages ranking for it, including the competitor's, still quote Synthflow self-serve tiers and a per-minute range that Synthflow's page no longer shows.
What Synthflow actually sells today
Synthflow positions itself as "the leading AI Voice Platform for enterprises": contact centres and customer-service operations in BPO, healthcare, technology, financial services and retail. The pricing page on 2026-10-14 shows one plan. "Enterprise contracts start at $30,000 annually", scoped on call volume and concurrency through sales, with an SLA, native telephony or SIP, custom concurrency, CRM, API and webhook integrations, an MSA and DPA, and implementation support (synthflow.ai/pricing). No per-minute rate, included minutes or overage figure is printed. A per-minute figure for Synthflow that you read anywhere else is either historical or not from the vendor.
What it is good at, read from its own positioning: scale with a contract behind it. A contact centre that needs concurrency guarantees, SIP into an existing telephony estate, a signed DPA and someone to call when something breaks is the buyer the page describes, and for that buyer Synthflow may remain the right call.
When to look elsewhere
- You are below the floor. A firm that will run a few thousand minutes a month has no reason to sign a $30,000 annual contract when per-minute platforms publish self-serve rates.
- You want to see the price before the call. Every self-serve alternative below prints its per-minute rate; Synthflow prints a floor.
- You want to own the agent. On a platform you build on, the prompts, the number and the recordings are yours. On an enterprise contract, read the exit terms.
- The problem is inbound web inquiries, not phone. A voice platform is the wrong tool for a form that waits until morning; the responder below fixes that for $497 and never books.
The alternatives, by lane
Platforms you build on: Retell, Bland, Vapi, Autocalls, GoHighLevel
Retell publishes components: a $0.055-a-minute voice engine, a language model from $0.008 to $0.08 a minute by model, text-to-speech from $0.015, telephony at $0.015 (free with your own SIP), for an all-in range of $0.07 to $0.31 a minute; its own estimator lands at $0.11. Billing is per second, the first 20 concurrent calls are free, and Enterprise is quoted (retellai.com/pricing, 2026-10-14). Fit: a builder who wants to choose every model and pay only for seconds used.
Bland publishes one talk rate with the model inside it: $0.14 a minute on the free Start tier (10 concurrent calls, 100 calls a day) and $0.12 on Build at $299 a month (50 concurrent, 2,000 calls a day), telephony separate, Enterprise quoted with on-prem, BAA and data-residency options (bland.ai/pricing, 2026-10-14). Fit: a team that wants a predictable bill and will grow into Enterprise.
Vapi charges a $0.05-a-minute hosting fee and passes speech-to-text, model, text-to-speech and telephony through at the provider's cost; the page's calculator puts 1,000 minutes at $82 to $129 all-in. Core is $29 a month, Pro from $999 a month, Premier quoted, HIPAA add-on $2,000 a month (vapi.ai/pricing, 2026-10-14). Fit: engineering teams that want the lowest platform fee and will manage providers.
Autocalls is the no-code option: Starter $34 a month for 120 minutes ($0.20 overage), Pro $129 for 700 ($0.16), Agency $249 for 1,700 and Agency White Label $419 for 3,500, both at $0.09 a minute, with numbers from $3.99 (autocalls.ai/pricing, 2026-10-14). Fit: an agency reselling voice agents to local businesses.
GoHighLevel's Voice AI is $0.045 a minute on the voice engine plus text-to-speech ($0.015 to $0.170), model tokens and phone charges, or inside the $97-a-month unlimited AI Employee per sub-account (AI pricing, 2026-10-14). Fit: only if the business already runs on the platform.
Managed: 11x Julian, MyNewStaff Brooke
11x's Julian answers inbound calls and chats as a managed agent from $5,333 a month for Voice Growth (2,000 calls) and $2,417 for Chat Growth, billed annually and metered in calls; Pro and Enterprise are quoted (11x Julian pricing, 2026-10-14). MyNewStaff's Brooke is a managed outbound caller from $997 a month for 500 voice minutes, $0.25 a minute above, with a $1,997 setup fee implied by "setup FREE (save $1,997)" (their Brooke page, 2026-10-14). Fit: a buyer who wants the vendor to build and run the agent and accepts the bill scaling with volume.
Consented calling in your own accounts: Paramount
Described below. The short version: a voice agent built for business landlines and numbers that gave written consent, disclosure in the first sentence, recordings and transcripts in your CRM, run for you, and owned by you.
The comparison at a glance
Prices checked 2026-10-14 on each vendor's own page. "Quoted" means no figure is printed. The fuller write-ups are in Retell AI alternatives, Bland AI alternatives and Autocalls alternatives; the roundup for agencies is best AI cold calling software for agencies, and every head-to-head is on the comparisons hub.
| Option | Published price (2026-10-14) | Who runs it | Best for | Source |
|---|---|---|---|---|
| Synthflow (staying put) | Enterprise from $30,000/year; no per-minute rate | You, with enterprise support | Contact-centre volume with an SLA and SIP | synthflow.ai |
| Retell AI | $0.07 to $0.31/min all-in; Enterprise quoted | You | Builders who choose every model, per-second billing | retellai.com |
| Bland AI | $0.14/min (Start, $0/mo); $0.12/min (Build, $299/mo); Enterprise quoted | You | One flat talk rate, no model pass-through | bland.ai |
| Vapi | $0.05/min hosting plus pass-through; Core $29/mo; Pro from $999/mo | You | Engineering teams wanting the lowest platform fee | vapi.ai |
| Autocalls | $34 to $419/mo; $0.09/min on agency tiers | You, no code | Agencies reselling with white label | autocalls.ai |
| GoHighLevel Voice AI | $0.045/min plus TTS, tokens and phone charges; AI Employee $50 or $97/mo per sub-account | You | Businesses already on the platform | gohighlevel.com |
| 11x Julian | Voice $5,333/mo, Chat $2,417/mo billed annually | 11x | Inbound calls and chats answered without building | 11x.ai |
| MyNewStaff Brooke | $997 to $9,997/mo plus $0.25/min | MyNewStaff | Managed outbound caller with per-minute billing | their site |
| Paramount Speed-to-Lead Caller | $297/mo including 200 minutes, $0.25/min after; add-on to the $497 responder | Paramount; you own it | Consented inbound inquiries called within 60 seconds | paramountexposure.com/services/ai-appointment-setting |
| Paramount Outbound Install + Engine | $2,500 once; $2,500 or $5,000/mo | Paramount; you own it | Outbound with AI voice to business landlines and consented numbers | paramountexposure.com/services/ai-sdr |
The law any Synthflow alternative has to obey
Not legal advice; have counsel review every script before the first dial. None of the per-minute rates above includes compliance, and none of the platforms can make a call lawful for you.
An AI voice is an artificial voice. The FCC's February 2024 ruling confirmed that AI-generated voices, including cloned ones, fall under the TCPA's "artificial or prerecorded voice" restrictions (FCC 24-17). A marketing call with one to a cell phone needs prior express written consent naming the seller (47 CFR 64.1200); the statute has no business-to-business exception. An AI voice agent dialing the cell numbers or residential lines on a purchased list is unlawful without that consent, whichever platform it runs on; business landlines sit outside that rule but inside the Telemarketing Sales Rule, state law and the identification and opt-out duties below.
Identify, disclose, allow opt-out. Every artificial-voice message must state the business at the start, give a callback number and, for telemarketing, offer an automated opt-out within two seconds of the identification (47 CFR 64.1200(b)). Opt-outs by any reasonable means are honoured within ten business days (FCC 24-24). Maine requires clear notice when an AI voice could be mistaken for a person (10 M.R.S. 1500-DD); Utah gives a safe harbour to agents that disclose at the outset (SB 226); the FCC has proposed a federal at-call disclosure (FCC 24-84).
Do Not Call and hours. Lists scrubbed against the registry inside 31 days, each seller on its own subscription (FTC DNC Q&A); federal hours 8 a.m. to 9 p.m. local, narrowed to 8 p.m. with a three-call daily cap in Florida (Fla. Stat. 501.616(6)), Oklahoma (15 O.S. 775C.3) and Maryland (Md. Comm. Law 14-4502); written consent for every consumer sales call in Connecticut (chapter 743m).
Recording. California, Florida, Illinois, Maryland, Pennsylvania, Washington and others require all parties' consent or an announcement (RCFP recording guide); say "this call is recorded" at the top of every call.
Abroad. An automated marketing call to a UK business needs that business's prior consent (PECR regulation 19); the EU's ePrivacy Directive says the same (Directive 2002/58/EC, article 13); the EU AI Act requires that people be told they are interacting with an AI from 2 August 2026 (Article 50).
Where Paramount fits, honestly
Paramount Exposure is an AI development and software agency. It does not sell a voice platform; it builds voice agents for clients inside the rules above and runs them. The work is on the AI appointment setting service page, the AI SDR page and the AI lead generation page.
Two products touch voice. The Speed-to-Lead Caller is a $297-a-month add-on to the $497 AI Lead Responder, including 200 minutes and $0.25 a minute after: when a form or booking-page submission arrives carrying the consent language we supply, the AI calls within 60 seconds, says it is an AI assistant in its first sentence, confirms the inquiry and sends the booking link by SMS or email. It calls nobody who has not consented. The responder itself answers website inquiries in under 60 seconds and sends people to the booking link; it never books and it does not take calls.
For outbound, the Outbound Install at $2,500, delivered in 14 days, includes a voice agent built for business landlines and consented numbers with the disclosure line fixed, one phone number with branded caller ID, recording-consent handling by state, calling hours by recipient time zone, and opt-out propagation across every channel, beside the email infrastructure in your name. The Outbound Engine runs it at $2,500 a month (up to 1,000 AI dials and 500 billed minutes) or $5,000 (up to 4,000 dials and 2,000 minutes); minutes above the tier are $0.25; three-month minimum; a 45-day exit. You own the number, the prompts, the recordings and the transcripts. We guarantee the inputs, dials and minutes as stated, scrubs logged, replies answered in under 60 seconds, with any missed month credited. AI voice calls go only to business landlines, after a wireless and Do Not Call scrub removes every cell number, and to people who gave prior express written consent; the agent says it is an AI in its first sentence. We do not guarantee meetings and have run this for no client yet; the first client will be Paramount itself, and the weekly numbers from our own campaign will be published, misses included, at /outbound/proof. The free Intake Index scores your inquiry handling first; the outbound tiers are on the AI SDR service page, the Speed-to-Lead Caller on the AI appointment setting page, and the responder on the pricing page.
Frequently asked questions
How much does Synthflow cost?
Synthflow's pricing page on 2026-10-14 shows one plan: Enterprise contracts from $30,000 a year, scoped on call volume and concurrency through sales. No per-minute rate, included minutes or overage figure is published. Earlier self-serve tiers quoted on third-party pages are not on the vendor's site today.
What is the cheapest Synthflow alternative?
By platform fee, Vapi at $0.05 a minute plus provider pass-through and Bland's $0 Start tier at $0.14 a minute; by all-in rate for a typical build, Retell's own estimator at $0.11 a minute; by bundled plan, Autocalls at $34 a month for 120 minutes (all per the vendors' pages, 2026-10-14). The cheapest rate on a list that cannot lawfully be called is the most expensive option on the page.
Can I use an AI voice agent for cold calling?
Not to consumers' cell phones without their prior express written consent: since the FCC's February 2024 ruling an AI voice is an artificial voice under the TCPA, with no B2B exception in the statute. Lawful shapes are calls to people who consented on your own forms, calls to business landlines, and AI assisting a human who dials, with the AI disclosed, the registry scrubbed and opt-outs honoured.
Does Paramount replace Synthflow?
No. Paramount is not a platform. It builds a consented voice agent inside a client's own accounts, runs it with the disclosure, hours and opt-out rules enforced, and hands over every asset; the Speed-to-Lead Caller is $297 a month and the Outbound Engine is $2,500 or $5,000 a month after a $2,500 install. A contact centre that needs enterprise concurrency and SIP is Synthflow's buyer, not mine.