8 alternatives · official sources

Synthflow alternatives

Synthflow describes itself as an enterprise conversational AI platform whose voice agents work inside the phone systems and CRMs customers already use. It is sold as an annual enterprise agreement scoped to call volume, phone system, integrations, security needs and launch support. If you are weighing other options, here are 8 alternatives with their published prices, how they charge, and what each adds or leaves out compared with Synthflow.

Compare the alternatives Sysevo vs Synthflow

Before you switch

What buyers check about Synthflow.

Points from Synthflow's own pricing and help pages that often lead people to compare.

No published pricing, free plan, trial or per-minute rate; every deployment starts on an annual enterprise contract scoped by sales. Source
Concurrency and calls-per-second (CAPS) limits are scoped per contract; calls beyond limits return HTTP 429 or queue briefly depending on setup. Source
SMS and WhatsApp chat agents run through your own Twilio account and are available for US-region workspaces only. Source
Deployment is described as going live 'in weeks', depending on integrations, telephony, security review and launch requirements. Source

Side by side

Synthflow and its alternatives.

“Small team” is three people using 450 AI voice minutes a month on each provider's lowest published plan that fits. A plus sign means some charges are not published.

Synthflow alternatives compared
Platform	Starts at	How you pay	AI answers calls	Built-in CRM	Small team / month
Synthflow (current)	By quote	Quote: annual enterprise agreement scoped to call volume, telephony, integrations, security and launch support	Included	Via integration	Quote
Sysevo	$29 / mo	Flat monthly plan with voice minutes included	Included	From Connect	$169 (Scale)
ElevenLabs Agents	$6 / mo	Monthly subscription tiers that include a call-minute allowance	Included	Via integration	$0 +
Vapi	$0.08 / min	Per minute: $0.05/min Vapi hosting fee plus transcriber, LLM, voice and telephony provider costs at provider rates	Included	Via integration	$36.90–$58.05
Retell AI	$0.07 / min	Pay as you go per minute (component-based, $0.07-$0.31/min for voice), plus monthly fees for numbers, extra…	Included	Via integration	$31.50–$139.50 +
Bland AI	$0.14 / min	Per connected minute (rate depends on plan) plus transfer-time minutes	Included	Via integration	$19.99 +
My AI Front Desk	$99 / mo	Per account: one self-serve plan with included usage, plus credits for overage (1 credit = $0.01)	Included	Included	$161.50
Dialzara	$29 / mo	Per account, with monthly plans that include minutes plus per-minute overage	Included	Via integration	$199
Goodcall	$79 / mo	Per account, billed by unique customers per month	Included	Via integration	$129

The alternatives

How each one differs from Synthflow.

Feature differences come from each provider's official pages. “Not listed” means we could not find it there.

1 · Our product

Sysevo

$29–$399 a month · 100 / 250 / 500 / 800 / 1,250 voice minutes

AI voice agents with call recordings, analysis and caller memory on every plan, plus a CRM, bookings, quotes, e-signature and payments from Connect.

Included, where Synthflow charges extra or does not list it: CRM and sales pipeline, booking links and calendar, quotes and proposals, contracts and e-signature, invoices and payments, email campaigns and sequences, website and landing pages, reviews and reputation, projects and tasks and mobile app.

Synthflow offers, Sysevo does not: white label for agencies.

Sysevo vs Synthflow Sysevo plans

2 · AI voice agent platforms

ElevenLabs Agents

$6 / mo · Monthly subscription tiers that include a call-minute allowance

ElevenAgents is ElevenLabs' platform to configure, deploy and monitor human-sounding voice and chat agents, with no-code setup plus developer SDKs and APIs. It is billed per call minute on monthly subscription tiers, with LLM usage passed through separately.

Low entry price with published tiers: a free plan and paid plans from $6/mo, each with an included call-minute allowance and a flat $0.08/min for extra minutes. Source
Broad voice and language coverage, drawing on ElevenLabs' own TTS models; agents page cites 90+ languages and a library of thousands of voices. Source

Lists, where Synthflow does not: invoices and payments and projects and tasks.

Not listed, where Synthflow has it: white label for agencies.

Sysevo vs ElevenLabs Agents ElevenLabs Agents alternatives

3 · AI voice agent platforms

Vapi

$0.08 / min · Per minute: $0.05/min Vapi hosting fee plus transcriber, LLM, voice…

Vapi is a developer platform for building voice AI agents that make and receive phone calls, handling the infrastructure while you choose the transcriber, model and voice providers. Usage is billed per minute (Vapi hosting fee plus provider costs), with optional Success Packages for support, SLAs and capacity.

Modular pipeline: choose and swap transcriber, LLM and voice providers, or bring your own custom models and provider keys. Source
Transparent usage pricing with models passed through at provider cost and a pricing calculator that breaks out hosting, transcriber, model, voice and transport. Source

Not listed, where Synthflow has it: caller memory across calls, WhatsApp and supported integrations.

Sysevo vs Vapi Vapi alternatives

4 · AI voice agent platforms

Retell AI

$0.07 / min · Pay as you go per minute (component-based, $0.07-$0.31/min for voice),…

Retell is a platform to build, test, deploy and monitor AI voice and chat agents with telephony, prompts, tools and analytics. It is billed pay-as-you-go per minute, with the rate built from voice infrastructure, TTS, LLM and telephony components.

Granular, published per-component pricing (voice infra, TTS, LLM, telephony, add-ons) with no platform fee and billing to the second. Source
Wide model choice: many LLMs (GPT, Claude and others) and TTS providers including ElevenLabs, Cartesia, MiniMax, Fish and OpenAI, plus speech-to-speech options. Source

Lists, where Synthflow does not: projects and tasks.

Not listed, where Synthflow has it: WhatsApp and white label for agencies.

Sysevo vs Retell AI Retell AI alternatives

5 · AI voice agent platforms

Bland AI

$0.14 / min · Per connected minute (rate depends on plan) plus transfer-time minutes

Bland is an enterprise voice AI platform for high-volume, regulated and complex phone workflows, owning its stack of telephony, speech-to-text, language model, text-to-speech and pathway orchestration. Self-serve plans charge a per-minute rate that bundles LLM, STT and TTS, with an optional monthly platform fee for lower rates and higher limits.

Simple bundled per-minute rate that covers LLM, STT and TTS with no per-token charges. Source
Owns its full voice stack (telephony, STT, LLM, TTS, orchestration); docs cite sub-400ms response latency. Source

Not listed, where Synthflow has it: WhatsApp, supported integrations and white label for agencies.

Sysevo vs Bland AI Bland AI alternatives

6 · AI receptionists and answering

My AI Front Desk

$99 / mo · Per account: one self-serve plan with included usage, plus credits for…

My AI Front Desk (branded 'Frontdesk', from AI Front Desk, Inc.) is an AI-powered front office platform for small and medium businesses. Its AI receptionist answers calls, texts, e-mails and chats, and keeps one memory per customer across channels.

One plan covers voice, SMS, e-mail, chatbot, web forms, CRM and automations, with published usage allowances and overage rates. Source
Transparent credit pricing: 1 credit = $0.01, voice overage $0.25/min, purchased credits don't expire. Source

Lists, where Synthflow does not: email campaigns and sequences, website and landing pages, projects and tasks, field service and work orders and mobile app.

Not listed, where Synthflow has it: power dialer for your reps and WhatsApp.

Sysevo vs My AI Front Desk My AI Front Desk alternatives

7 · AI receptionists and answering

Dialzara

$29 / mo · Per account, with monthly plans that include minutes plus per-minute overage

Dialzara is an AI phone answering service for small businesses. Its AI receptionist answers calls 24/7, books appointments and captures leads, and the same platform runs outbound voice agents, a two-way SMS agent and a website chatbot.

Low entry price ($29/month) and a clear ladder of minute bundles with published overage rates. Source
The website chatbot is bundled free with any voice plan (100 sessions/month), and SMS and outbound share the same knowledge base and dashboard. Source

Lists, where Synthflow does not: projects and tasks.

Not listed, where Synthflow has it: power dialer for your reps, voice cloning, WhatsApp, MCP for AI assistants and compliance and certifications.

Sysevo vs Dialzara Dialzara alternatives

8 · AI receptionists and answering

Goodcall

$79 / mo · Per account, billed by unique customers per month

Goodcall is an AI answering service and virtual receptionist that answers calls 24/7. Its agent 'Gabi' builds and manages the phone agent from a plain-language description of the business.

Billing is per unique customer, not per minute, so long calls and repeat calls from the same number in a month don't add cost. Source
Low-friction start: a free demo agent you build by describing your business, and billing only once you connect a number. Source

Not listed, where Synthflow has it: outbound AI calling campaigns, power dialer for your reps, voice cloning, WhatsApp, website chat with AI replies and white label for agencies.

Sysevo vs Goodcall Goodcall alternatives

Questions

Synthflow alternatives: common questions.

What are the alternatives to Synthflow?

Alternatives to Synthflow include Sysevo, ElevenLabs Agents, Vapi, Retell AI, Bland AI, My AI Front Desk, Dialzara and Goodcall. ElevenLabs Agents, Vapi, Retell AI and Bland AI are in the same category (AI voice agent platforms); the others overlap most with its features.

What is the lowest-cost alternative to Synthflow?

For a three-person team using 450 AI minutes a month, the lowest published price components among these alternatives are ElevenLabs Agents at $0 plus charges it does not publish. Sysevo Scale is $169 with 500 minutes included. Compare what each price covers before choosing on cost alone.

Which Synthflow alternatives include a CRM?

My AI Front Desk list a built-in CRM or pipeline. Sysevo includes a CRM from Connect ($79 a month).

Which Synthflow alternatives answer calls with AI?

ElevenLabs Agents, Vapi, Retell AI, Bland AI, My AI Front Desk, Dialzara and Goodcall list AI phone answering. Every Sysevo plan includes AI voice agents, with 100, 250, 500, 800, 1,250 voice minutes a month by plan.

Is Sysevo an alternative to Synthflow?

Sysevo combines AI voice agents with a CRM, bookings, quotes and payments in one monthly plan from $29. Compared with Synthflow's official pages, it includes CRM and sales pipeline, booking links and calendar, quotes and proposals and contracts and e-signature. Its AI agents speak English, and it does not port numbers. See the full Sysevo vs Synthflow comparison for plans, costs and every feature.

Keep comparing.

All AI voice agent platforms5 platforms compared Sysevo vs SynthflowPlans, costs and 30 features AI receptionists and answering7 platforms compared CRM and marketing platforms5 platforms compared Field service software2 platforms compared Customer messaging and reviews2 platforms compared