AI Voice & Speech

Text-to-speech, voice cloning and AI voice tools. Every tool below is measured against the same criteria, in the same order. Note that this field moves fast, so treat every value as a snapshot and check it against the vendor before you rely on it.

32tools

Fish Audio

Price Free tier; Plus from $15 / month

Not rated yet

Voice platform for expressive text-to-speech and fast voice cloning, with open-source models and a large community voice library.
Strengths
- Fast voice cloning and expressive emotion control
- Open-source models (Fish Speech and Fish Audio S2)
- Large community voice library and a developer API
Limitations
- API access and commercial use require a paid plan
- Cloned and community voices raise consent questions
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Read AI

MCP-ready

Price Free plan; Pro $19.75 / user / month

Not rated yet

Meeting assistant that reports on calls, email and messages, with live notes and coaching metrics.
Strengths
- Live notes and meeting metrics while the call is still running
- Meeting coach and trend reporting on how meetings themselves are run
- Search spans meetings, email and messages rather than calls alone
- MCP server with Claude and ChatGPT connectors
Limitations
- Free plan is capped at five meeting transcripts a month
- Audio and video playback only from the Enterprise plan up
- Meeting length is capped by plan, from one hour on Free to eight on Enterprise+
- SSO, SCIM, HIPAA support and data retention policies need Enterprise+ and five or more licences
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Hume AI

Price Free tier; paid from $3 / month

Not rated yet

Expressive, emotionally intelligent text-to-speech (Octave) and an empathic voice interface (EVI), with voice cloning and voice design.
Strengths
- Expressive, emotionally aware speech
- Voice cloning from about 15 seconds and voice design from text prompts
- Low-latency streaming for real-time voice agents
Limitations
- Voice design and acting instructions are English only or still in preview
- Character and EVI-minute caps scale the monthly cost
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Respeecher

Price Text-to-speech API from $2 / hour

Not rated yet

Enterprise voice cloning and speech-to-speech used in film and games, with a real-time TTS API.
Strengths
- Broadcast-quality cloning trusted by major film and game studios
- Covers speech-to-speech, accent correction and voice de-aging, not just text-to-speech
- Marketplace and API are self-serve with pay-as-you-go pricing
Limitations
- Built for studios; the strongest features run through custom enterprise projects
- Public pricing is limited to the marketplace and API
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Typecast

Price Free tier; Basic from $5 / month

Not rated yet

AI voice generator with 700+ voices and emotion control, plus voice cloning and an API.
Strengths
- 700+ voices with fine emotion and delivery control
- Context-aware emotion model adapts tone to the script
- Affordable entry with a commercial license from $5 per month
Limitations
- Free tier is limited to trial voices and requires attribution
- Credit allowances are modest on the lower tiers
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ElevenLabs

MCP-ready

Price Free tier; Starter from ~$5 / month

Not rated yet

The leading AI voice platform for realistic narration, voice cloning and dubbing.
Strengths
- Most realistic voice and cloning
- 70+ languages on the v3 models
- Speech-to-speech and dubbing
- Strong API
Limitations
- Commercial use only from the paid Starter tier
- API pricey at high volume
- Credits are shared across every product and roll over for at most two months
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Speechify

Price Free; paid tiers above

Not rated yet

AI text-to-speech reader that turns documents and articles into listenable audio.
Strengths
- Best for turning reading material into audio
- Accessibility focus
- Popular with creators
Limitations
- Free tiers lack commercial rights
- More consumer reader than production studio
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Resemble AI

Price Free tier (Flex, pay as you go); detection plans from $280 / month

Not rated yet

Voice cloning and synthetic-speech platform with speech-to-speech, voice design and deepfake detection.
Strengths
- Professional cloning with consent verification
- Speech-to-speech and Voice Design
- Trust and security tools
Limitations
- Public generative text-to-speech pricing is opaque, verify with a quote
- More developer and security oriented
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Fireflies.ai

Price Free plan; Pro from $10 / seat / month

Not rated yet

An AI meeting assistant that records calls across Zoom, Teams and Meet, transcribes them and pushes the summaries into the CRM.
Strengths
- Covers Zoom, Microsoft Teams, Google Meet, Webex, GoToMeeting, Dialpad and Lifesize, plus dialers and uploaded audio files
- More than 100 languages with automatic detection
- Over 100 integrations carry summaries into CRM, ATS, chat and docs
- SOC 2 Type II, GDPR and HIPAA compliance with zero data retention
Limitations
- Transcription only, no text-to-speech or voice cloning
- API access, analytics and private channels all start at the Business plan
- The vendor marks the wider language set as beta
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Rev

Price Free tier, then from $25.49 / seat / month

Not rated yet

AI and human transcription, captions and subtitles, plus a speech-to-text API, from a company that has been doing this since 2010.
Strengths
- Human transcription at a stated 99%+ accuracy alongside the machine tier
- Developer API priced per hour of audio, from $0.10 on Reverb Turbo
- Runs on-premises as well as in the cloud on the API side
- Free credits worth 5 hours of transcription, with no card required
Limitations
- Speech-to-text only, no text-to-speech, dubbing or voice cloning
- The subscription is built around legal and investigative work, which is dead weight for other uses
- The free plan covers 45 minutes a month and English only
- Human services are charged on top of the subscription rather than included
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Retell AI

MCP-ready

Price From $0.07 / minute of calls

Not rated yet

Build, test and monitor AI voice and chat agents that handle phone calls, billed by the minute.
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
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Bland AI

MCP-ready

Price From $0.14 / minute of calls

Not rated yet

Enterprise AI phone agents on a stack the vendor owns end to end, priced as one per-minute rate.
Strengths
- One per-minute rate covers the language model, speech-to-text, text-to-speech and telephony, with no token charges or provider pass-throughs
- Self-hosted and on-premises deployments, plus US, EU and APAC data residency
- SOC 2 Type II, HIPAA, GDPR and PCI DSS v4.0, with FedRAMP 20X Class A available
- The same pathways, personas and memory run across voice, SMS, RCS, iMessage and web chat
Limitations
- Owning the stack means no choice of speech or language model provider
- The lower $0.12 per minute rate carries a $299 / month platform fee, so it only pays off above a certain volume
- Transfer time to a human is billed on top of the per-minute rate
- Positioned around regulated enterprise workloads, which is more platform than a small team needs for a single use case
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Dubverse

Price From $9 / month

Not rated yet

AI video dubbing, subtitles and text-to-speech in 32 languages, with a low-latency speech API.
Strengths
- Commercial rights on both self-serve plans, with unlimited downloads and no project expiry
- Deep coverage of Indian languages alongside European and Asian ones
- Low-latency text-to-speech API with automatic language detection and streaming
- Entry pricing is low compared with other dubbing platforms
Limitations
- Lip sync, multi-speaker support and human review are Enterprise only
- Voice cloning starts on the Supreme plan
- Both paid plans include only 50 credits per month, so extra credits are bought on top
- 32 languages is a narrower set than the largest localization platforms offer
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Rask AI

Price Free trial; paid from $33 / month

Not rated yet

Video and audio localization: transcription, translation, voice cloning and lip sync in 130+ languages.
Strengths
- Transcription, translation, dubbing and lip sync in one pass
- Voice cloning carries the original speaker into 32 languages
- Multi-speaker detection keeps panels and interviews on separate voices
- SOC 2 Type II certified, with team spaces and shared voice presets
Limitations
- Lip sync only from the Creator Pro plan upwards
- The entry plan carries only a limited API; a production API with webhooks starts on Creator Pro
- Every plan caps processed minutes, so heavy localization moves up the tiers quickly
- Voice cloning covers 32 of the 130+ translation languages
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Otter.ai

MCP-ready

Price Free tier, then from $8.33 / user / month

Not rated yet

An AI meeting assistant that joins calls, transcribes them live and turns the recording into summaries, action items and searchable notes.
Strengths
- Records without a bot in the call from the desktop app
- Summaries and action items sync into CRM, chat and project tools
- MCP server exposes meeting data to Claude and ChatGPT
- Free plan with 300 transcription minutes a month
Limitations
- Transcription only, no text-to-speech or voice cloning
- A small number of languages, and only one per conversation
- Per-meeting length caps on the lower plans: 30 minutes on Basic and 90 on Pro
- API access is reserved for Enterprise
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Synthflow

MCP-ready

Price From $30,000 / year

Not rated yet

A no-code builder for AI phone agents, sold as an enterprise contract with implementation included.
Strengths
- No-code Flow Designer with a multi-agent system, so a non-developer can build and change call flows
- Connects to existing telephony and contact centre stacks over SIP, including Genesys, Avaya, Five9, Cisco and RingCentral
- White-labelled deployments for partners reselling voice agents under their own brand
- SOC 2, HIPAA, PCI DSS, GDPR and ISO 27001, with agent-level retention and PII redaction controls
Limitations
- No self-serve or trial tier is published; the only listed plan is an enterprise contract from $30,000 per year
- Pricing is scoped by sales, so the cost of a given call volume is not knowable from the website
- Latency figures differ between the vendor's own pages, so the published number is not a specification to rely on
- A cloned voice has to be created in a separate ElevenLabs account and imported, so it means a second subscription alongside Synthflow
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Voicemod

Not rated yet

A real-time voice changer and soundboard that sits between your microphone and Discord, OBS or the game you are in.
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
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Google Cloud Text-to-Speech

Price Free tier, then from $4 per 1 million characters

Not rated yet

Google Cloud's speech synthesis API, from cheap legacy voices to Chirp 3 HD and prompt-controlled Gemini-TTS.
Strengths
- One API spans cheap legacy voices at $4 per million characters and current HD voices at $30
- Gemini-TTS takes a written prompt for the delivery instead of hand-written SSML markup
- Free monthly character allowance on every voice type except Gemini-TTS and custom voices
- Bidirectional streaming, single request and long-form synthesis from the same service
- Voice cloning requires a recorded consent statement from the speaker, in their own language
Limitations
- Text to speech only: recognition and translation are separate Google Cloud services
- Instant Custom Voice is restricted to allow-listed customers and goes through sales
- Studio voices cost $160 per million characters, forty times the Standard rate
- Gemini-TTS is billed per token rather than per character, so the two price models do not compare directly
- The overlapping generations of voice model take some reading before the right one is obvious
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Azure AI Speech

Price Free tier, then pay-as-you-go

Not rated yet

Microsoft's speech platform: transcription, neural text to speech, custom voices, translation and talking avatars, in the cloud or in containers.
Strengths
- One service covers transcription, synthesis, translation, speaker recognition and avatars
- Runs in containers at the edge, embedded on-device and in sovereign clouds
- Custom neural voice and custom speech models for brand voices and domain vocabulary
- Free F0 tier with 5 audio hours and 0.5 million characters a month
Limitations
- Pay-as-you-go rates are not published as fixed figures and depend on region and currency
- Custom neural voice requires a limited-access application before it can be used
- A platform assembled from many services rather than a single endpoint, so setup takes longer
- The LLM speech model is still in preview
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AssemblyAI

MCP-ready

Price From $0.15 / hour of audio

Not rated yet

Speech-to-text, speech understanding and voice agent APIs for developers, billed per hour of audio.
Strengths
- Pay-as-you-go with no subscription and $50 in free credits to start
- 99 languages for pre-recorded transcription on Universal-2
- Compliance certifications and an EU region at no price premium
- Official MCP server exposes transcription and transcript search to AI agents
Limitations
- A developer API, not a ready-made studio or editor
- No voice cloning or voice creation
- Speech Understanding add-ons are billed on top of the base rate, so cost stacks per request
- Streaming is billed for as long as the connection stays open, not for the audio sent, and multichannel files are billed per channel
- Universal-3.5 Pro covers 18 languages against 99 on the older Universal-2
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Vozo

Price Free tier; paid from $29 / month

Not rated yet

AI video localization with dubbing, lip sync and on-screen text translation across 160+ languages.
Strengths
- Very broad language coverage, 111 source and 165 target languages
- Visual Translate rewrites on-screen text and keeps layout and animation
- Free tier covers a first project without a card
- Two dubbing modes, one keeping the original voice and one using a native accent
Limitations
- API access only on Enterprise plans
- Metered in AI points, so cost depends on the mix of dubbing, lip sync and visual translation
- Each tier caps video length, seats and concurrent jobs
- Lip sync and watermark-free export need at least the Creator plan
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Amazon Polly

Price Free tier, then from $4 per 1 million characters

Not rated yet

AWS text-to-speech API with Standard, Neural, Long-Form and Generative voices, billed per character.
Strengths
- Four voice engines let quality be traded against cost per character, from $4 to $100 per million
- Generous free tier, with 5 million Standard characters a month that does not expire
- Generated speech may be cached and replayed at no additional cost
- Speech Marks and custom lexicons cover lip-sync and awkward pronunciations properly
- Brand Voice cannot be used without the voice owner being cast and recorded
Limitations
- Text to speech only: no transcription, translation or dubbing in this service
- No self-service voice cloning, and Brand Voice starts with an AWS account manager
- The Generative and Long-Form engines cover far fewer voices than Standard and Neural
- Long-Form voices cost $100 per million characters, twenty-five times the Standard rate
- Useful only from code, so it suits developers rather than anyone wanting an editor
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WellSaid Labs

Price From $19 / month

Not rated yet

Enterprise AI voice platform with studio-quality avatars and ethically sourced voices.
Strengths
- Voices licensed from professional voice actors, with consent
- AI Director controls for pitch, pace and tone, plus custom pronunciation rules
- Shared workspaces, so a script gets reviewed before it ships
- Real-time streaming API at sub-600ms latency, up to 96 kHz
Limitations
- Free tier has no commercial rights and only three download minutes a month
- Paid tiers meter output in minutes rather than leaving it open
- All languages and translation are Enterprise-only, the self-serve tiers are English
- Adobe Premiere Pro integration starts at the $160 Business tier
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Speechmatics

Price From $0.129 / hour of audio

Not rated yet

Speech-to-text APIs built for accents, dialects and code-switching, with cloud, on-premises and on-device deployment.
Strengths
- 55+ languages with explicit accent, dialect and code-switching coverage
- Runs in the cloud, in containers, on-premises or on-device
- $100 in credit to start, with no card required
- Data is not logged as standard
Limitations
- A developer API rather than a ready-made voice studio
- Text-to-speech on the free tier covers English only
- The Voice Agent API is still in early access
- Volume discounts start at 500 hours a month, so small workloads pay the full rate
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Vapi

MCP-ready

Price From $0.05 / minute of calls

Not rated yet

A developer platform for building voice AI agents that make and take phone calls, billed per minute.
Strengths
- Per-minute pricing with model provider costs passed through at cost
- Bring your own provider keys and the pass-through drops to nothing
- Free choice of speech-to-text, model and voice provider across dozens of options
- Official MCP server lets external AI agents drive Vapi's APIs
Limitations
- HIPAA compliance and zero data retention are monthly add-ons rather than included
- Total cost depends on which model, transcription and voice providers you choose
- Concurrent lines beyond the first ten cost $10 per month each
- A platform to build on, not a finished call-centre product
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Fathom

MCP-ready

Price Free plan; Premium $20 / user / month

Not rated yet

AI notetaker that records, transcribes and summarises calls, with an unlimited free plan.
Strengths
- Free plan carries unlimited recordings, transcription and AI summaries
- Records without a bot in the call from the desktop app, or with one
- Transcripts in 38 languages
- Documented REST API with webhooks, SDKs and an MCP server
Limitations
- Transcription and summarisation only, with no voice synthesis, cloning or dubbing
- Summary translation covers six languages against the 38 it transcribes
- Team and Business plans carry a two-user minimum
- CRM field sync, coaching metrics and custom summaries start on the Business plan
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Granola

MCP-ready

Price Free tier, then $14 / user / month

Not rated yet

AI meeting notepad that records from your computer audio instead of sending a bot into the call.
Strengths
- No bot joins the call, so nothing appears in the attendee list
- Expands shorthand typed during the meeting instead of replacing note-taking
- AI chat runs across the whole meeting history, not a single transcript
- Opt-out of model training on every plan, including the free one
- MCP server and API on Business, so meeting context reaches other AI tools
Limitations
- Capture depends on a machine being in the meeting, since it records local computer audio
- The free plan limits how far meeting history reaches back
- Integrations, API and MCP start on the Business plan
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NaturalReader

Price Commercial from $16.50 / user / month

Not rated yet

AI text-to-speech reader and commercial voice generator, with voices from Gemini, OpenAI, Azure and ElevenLabs.
Strengths
- Bundles voices from Gemini, OpenAI, Azure and ElevenLabs in one place
- Doubles as a reader for your own documents, PDFs and ebooks
- Commercial license and up to four voice clones on paid plans
Limitations
- Personal reader and commercial generator are separate apps with separate subscriptions
- The Team plan requires a minimum of two users
- No API, so the voices cannot be built into another product or used live
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Camb.ai

Price Free tier; paid from $5 / month

Not rated yet

Localization AI for dubbing and text-to-speech, with real-time dubbing (DubStream) and the MARS speech models.
Strengths
- Real-time dubbing (DubStream) and on-demand dubbing (DubStudio)
- MARS speech models tuned for conversation, dubbing and narration
- Broad language coverage for media and sports localization
Limitations
- Priced in credits, so cost depends on usage
- Aimed at localization and dubbing more than general voiceover
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Cartesia

Price Free tier; Pro from $5 / month

Not rated yet

Real-time AI voice (Sonic) built for low-latency voice agents, with instant cloning.
Strengths
- Lowest-latency real-time voice for agents
- Instant three-second cloning
- Cost-effective developer API
Limitations
- Less expressive on long-form and audiobook content
- Newer and developer-oriented
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Murf AI

Price Free tier; paid tiers above

Not rated yet

AI voiceover platform for business presentations and e-learning, with real-time voice agents.
Strengths
- Polished business voiceover
- Flexible for training and e-learning
- Also does real-time agent voices
Limitations
- Free tier has no downloads or commercial rights
- Less storytelling realism than ElevenLabs
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Deepgram

MCP-ready

Price Usage-based, pay-as-you-go

Not rated yet

A developer voice AI platform with speech-to-text, text-to-speech and voice agents through unified, real-time APIs.
Strengths
- Unified speech-to-text, text-to-speech and voice-agent APIs
- Real-time streaming with low latency for live applications
- Usage-based with $200 free credit and no card required
- Runs self-hosted for data control and compliance
Limitations
- Developer platform, not a consumer voice studio
- Several headline per-minute rates are promotional and sit below the list price, so the long-run cost depends on which rate applies
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