Best for
Best for developers putting voice agents on real phone lines for support, lead qualification or scheduling.
- Small and mid-sized
- Enterprise
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AI Voice & Speech Comparison
At a glance
Best for
Best for developers putting voice agents on real phone lines for support, lead qualification or scheduling.
Best for
Best for streamers, gamers and creators who need the voice changed live in the call rather than rendered into a file.
Cataleo does not name a winner. Both statements come from the vendors themselves.
| Criterion | Vapi | Voicemod |
|---|---|---|
| Starting price | From $0.05 / minute of calls Build plan, usage-based, plus $0.005 per SMS or chat message. Ten concurrent lines are included and further lines cost $10 / month each. Model provider costs for speech-to-text, the LLM and text-to-speech are passed through at cost, or nothing if you bring your own API keys. | Not stated |
| Free trial | Not stated | Free version for Windows and Mac |
| Commercial use | Yes, usage-based | Not stated |
| Output | Voice agents for inbound and outbound phone calls, web voice, and SMS or chat | A changed voice delivered live through a virtual microphone, plus soundboard clips and recordings |
| API | Yes, REST API, CLI and SDKs | Yes, a Control API with an API key and bindings for Unity, JavaScript, C/C++ and Java |
| Hosting | Not stated | Desktop application for Windows and Mac, a mobile soundboard app, and the Voicemod Key device for consoles |
| Voice cloning | Not part of Vapi itself; voices come from connected providers such as ElevenLabs and Deepgram | 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 and web conversations at an average latency under 500 ms | 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 | Depends on the providers chosen for a given assistant: automatic language detection and code-switching with Deepgram (100+ languages), Google STT (125+) or Gladia (110+), while Azure, OpenAI Whisper, Speechmatics and Talkscriber run one language at a time; on the voice side Vapi's own voices cover 40+ languages, Azure 140+ and ElevenLabs 30+. The languages an assistant may use have to be listed in its system prompt | 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 | Yes, a call runs as spoken conversation by chaining speech-to-text, a language model and text-to-speech, with natural turn-taking | Real-time voice changing transforms your own speech into another voice; no dubbing or translation is published |
| Editing and controls | Assistants for a single prompt with tools, Squads for multi-assistant orchestration, tool calls into APIs and databases mid-conversation, plus testing and call observability | 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 | SOC 2, HIPAA and PCI compliance with SSO, OAuth and role-based access control; HIPAA is a $2,000 / month add-on and zero data retention $1,000 / month on both plans | 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 | more entries Email helpdesk, Community forum | Email helpdesk |
| Onboarding | Documentation and knowledge base | Documentation and knowledge base |
| Company size | more entries Small and mid-sized, Enterprise | Freelancers |
| Integrations | OpenAI, Anthropic, Groq, Deepgram, Gladia, ElevenLabs, Salesforce, HubSpot, Zapier, Slack, Google Workspace | Discord, OBS, Fortnite, Valorant, Minecraft, League of Legends, Elgato, Corsair, Razer, MSI, Qualcomm |
Adds a column to the table, from the tools in this category.
Row where the values differ The small markers point at the lower number, the longer list or the stated feature. They describe the data, they are not a verdict.
The short version
Every line is one datapoint from the table above, picked automatically. Nothing here is written text.
The trade-offs
Vapi
Strengths
Limitations
Voicemod
Strengths
Limitations
Plans
Vapi
Voicemod
What users say
Vapi
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Voicemod
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Where this comes from
Vapi https://vapi.ai · checked against the official source on 2026-08-30
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.