Best for
Best for teams putting AI voice agents on real phone lines and testing them before they meet customers.
- Small and mid-sized
- Enterprise
AI Voice & Speech Comparison
Retell AI vs. Voicemod
At a glance
At a glance
Best for
Best for streamers, gamers and creators who need the voice changed live in the call rather than rendered into a file.
- Freelancers
Cataleo does not name a winner. Both statements come from the vendors themselves.
Full Comparison
| Criterion | Retell AI | Voicemod |
|---|---|---|
| Starting price | From $0.07 / minute of calls Pay as you go, quoted by the vendor as $0.07 to $0.31 per minute for voice agents depending on the models, telephony and add-ons chosen, plus from $0.002 per message for chat agents. Enterprise is quoted by sales. | Not stated |
| Free trial | $10 in free credits, no contract and no commitment; 20 concurrent calls are included | Free version for Windows and Mac |
| Commercial use | Yes, usage-based | Not stated |
| Output | Voice agents for inbound and outbound phone calls and web calls, plus chat agents over SMS and a web widget | A changed voice delivered live through a virtual microphone, plus soundboard clips and recordings |
| API | Yes, REST API with Node.js and Python libraries, webhooks and an MCP server | Yes, a Control API with an API key and bindings for Unity, JavaScript, C/C++ and Java |
| Hosting | Cloud on AWS; the vendor states it does not currently operate services within the European Union | Desktop application for Windows and Mac, a mobile soundboard app, and the Voicemod Key device for consoles |
| Voice cloning | Yes, custom voices can be added by searching ElevenLabs community voices, importing an existing clone or training one from uploaded recordings, with Inworld, Cartesia, MiniMax, ElevenLabs and Retell's own platform clones as providers; up to 100 custom voices per account | No. Voicelab builds a voice by layering more than 140 effects over your own, and the vendor publishes no way to reproduce a specific person's voice |
| Real-time use | Yes, live inbound and outbound phone calls and browser web calls, with a proprietary turn-taking model, batch calling for campaigns and live monitoring that lets a human listen in or step in | Yes, and it is the whole product: a virtual microphone changes the voice live in Discord, OBS, Fortnite, Valorant, Minecraft, League of Legends and more than 30 other applications |
| Languages | 57 languages are listed for text-to-speech and 55 for speech recognition, and a language needs a provider on both sides to be usable. An agent runs either in a single language or as a multilingual agent across a chosen set | No published language list. The vendor states the AI voices were built from data recorded by English-speaking voice actors, so English gives the best results, and that other languages can still work but the AI may have difficulty with some of their sounds and articulations |
| Speech-to-speech and dubbing | A call runs as spoken conversation by chaining speech recognition, a language model and text-to-speech; dubbing of existing recordings is not part of the product | Real-time voice changing transforms your own speech into another voice; no dubbing or translation is published |
| Editing and controls | Single and multi-prompt agents or node-based conversation flows, knowledge bases, expressive mode for emotion and emphasis, custom pronunciation with IPA, CMU, Pinyin or Jyutping, denoising and interruption sensitivity, voicemail and IVR handling, plus a playground, simulation tests, A/B testing and post-call analysis | Over 200 AI voices, Voicelab for building or remixing voices from more than 140 effects including pitch, tone, Reverb, Delay and Robotifier, plus a soundboard with keybinds, a recorder for YouTube and in-game audio and a 30-second instant replay |
| Consent and trust | HIPAA compliant, SOC 2 Type 1 and Type 2 certified and GDPR compliant, with a BAA and a DPA including EU standard contractual clauses available for self-signing at no extra fee. Per-agent data retention runs from 1 day to 2 years, PII can be excluded from what is stored, and recording URLs can be signed. Services are not currently operated inside the EU | The vendor states its AI voices are trained by professional voice actors and carry a Fairly Trained certification |
| MCP-ready | stated Yes | No |
| Deployment | more entries Cloud (SaaS), Browser-based | On-premise |
| Support | Not stated | Email helpdesk |
| Onboarding | Documentation and knowledge base | Documentation and knowledge base |
| Company size | more entries Small and mid-sized, Enterprise | Freelancers |
| Integrations | Twilio, Telnyx, Vonage, Genesys Cloud, Five9, Avaya, Amazon Connect, HubSpot, Make, n8n, GoHighLevel | Discord, OBS, Fortnite, Valorant, Minecraft, League of Legends, Elgato, Corsair, Razer, MSI, Qualcomm |
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The short version
Key Differences
- Free trial Retell AI $10 in free credits, no contract and no commitment; 20 concurrent calls are included Voicemod Free version for Windows and Mac
- Deployment Retell AI Cloud (SaaS), Browser-based Voicemod On-premise
- Company size Retell AI Small and mid-sized, Enterprise Voicemod Freelancers
- Hosting Retell AI Cloud on AWS; the vendor states it does not currently operate services within the European Union Voicemod Desktop application for Windows and Mac, a mobile soundboard app, and the Voicemod Key device for consoles
- MCP-ready Retell AI Yes Voicemod No
Every line is one datapoint from the table above, picked automatically. Nothing here is written text.
The trade-offs
Strengths and Limitations
Retell AI
Strengths
- Usage-based per-minute pricing with no contract and $10 in free credits to start
- Testing tooling built into the product: playground, simulation runs, batch tests and A/B splits of live traffic
- Custom voices can be cloned or imported across several voice providers
- HIPAA, SOC 2 Type 1 and Type 2 and GDPR, with BAA and DPA available for self-signing at no extra fee
Limitations
- The per-minute rate varies widely with the models, telephony and add-ons chosen, so the entry rate is not the rate to budget with
- The vendor states it does not currently operate services within the European Union
- Retell-managed phone numbers cover the US and Canada only; elsewhere a number has to be brought in
- Building and running an agent assumes developer work; there is no packaged seat-based plan
Voicemod
Strengths
- Works live in more than 30 games and applications through a virtual microphone
- Voicelab builds custom voices from over 140 effects and publishes them to the community
- Control API drives the app from Unity, JavaScript, C/C++ or Java
- AI voices are trained with professional voice actors under a Fairly Trained certification
- Free version for Windows and Mac
Limitations
- No voice cloning: Voicelab shapes effects rather than reproducing a specific person's voice
- Plan amounts are not published on the site
- Built around gaming, streaming and chat applications rather than rendered audio files
Plans
Pricing
Retell AI
- Pay as you go $0.07 Per minute and up, quoted by the vendor as $0.07 to $0.31 per minute for voice agents and from $0.002 per message for chat agents. Includes $10 in free credits and 20 concurrent calls, with no contract.
- Enterprise Not stated Contact sales. Custom pricing for higher volumes, with dedicated support and implementation, custom compliance terms covering HIPAA, SSO and a DPA, no cap on concurrent calls and a dedicated server option.
Voicemod
- Free Not stated
- Pro Not stated
What users say
Review Scores · opens after launch
Retell AI
- Ease of use
- Not rated yet
- User interface
- Not rated yet
- Onboarding
- Not rated yet
- Support and service
- Not rated yet
- Value for money
- Not rated yet
- Features
- Not rated yet
No reviews yet. Be the first to review this tool. Every review is checked for fairness before it appears, and the vendor cannot have one removed.
Voicemod
- Ease of use
- Not rated yet
- User interface
- Not rated yet
- Onboarding
- Not rated yet
- Support and service
- Not rated yet
- Value for money
- Not rated yet
- Features
- Not rated yet
No reviews yet. Be the first to review this tool. Every review is checked for fairness before it appears, and the vendor cannot have one removed.
Where this comes from
Where this comes from
Retell AI https://www.retellai.com · checked against the official source on 2026-09-13
Voicemod https://www.voicemod.net · checked against the official source on 2026-09-12
This table lists factual criteria taken from information the vendors publish themselves. For how we put it together, see the methodology.