Best for
Best for developers who need accurate transcription, speech insights or voice agents behind a pay-as-you-go API.
- Small and mid-sized
- Enterprise
AI Voice & Speech Comparison
AssemblyAI vs. Read AI
At a glance
At a glance
Best for
Best for organisations that want meetings, email and messages searchable in one place, and metrics on how the meetings themselves are being run.
- Freelancers
- Small and mid-sized
- Enterprise
Cataleo does not name a winner. Both statements come from the vendors themselves.
Full Comparison
| Criterion | AssemblyAI | Read AI |
|---|---|---|
| Starting price | lower value From $0.15 / hour of audio Pay-as-you-go, no subscription tiers. Pre-recorded speech-to-text is $0.15 / hour on Universal-2 and $0.21 / hour on Universal-3.5 Pro; streaming is $0.15 / hour on Universal-Streaming and $0.45 / hour on Universal-3.5 Pro Realtime; the Voice Agent API is $4.50 / hour, billed per second of connected conversation. Add-ons such as speaker diarization ($0.02 / hour) and medical mode ($0.15 / hour) are charged on top. | Free plan; Pro $19.75 / user / month Pro is $15 per user per month billed annually. Enterprise is $29.75 monthly or $22.50 annually, Enterprise+ $39.75 monthly or $29.75 annually and requires five or more licences. Every plan is measured on 30 meetings a month. |
| Free trial | $50 in free credits, no credit card required, covering up to 185 hours of pre-recorded or 333 hours of streaming transcription | Free plan with 5 meeting transcripts a month |
| Commercial use | Yes, usage-based | Not stated |
| Output | Transcripts, structured speech insights and live voice agent conversations | Meeting reports with summary, topics, action items, key questions and a speaker-separated transcript |
| API | Yes, REST APIs and SDKs | Yes, plus an MCP server and Claude and ChatGPT connectors |
| Languages | 99 languages on Universal-2 and 18 on Universal-3.5 Pro for pre-recorded audio; translation across 100+ languages | Meeting reports in 16+ languages |
| Hosting | Not stated | Cloud, with Windows, macOS, Android and iOS apps and a Chrome extension |
| Voice cloning | No, the platform covers speech recognition and voice agents rather than voice creation | No, Read AI transcribes, summarises and measures meetings and does not synthesise or clone voices |
| Real-time use | Yes, streaming speech-to-text and a Voice Agent API, alongside batch transcription of pre-recorded files | Yes, an in-meeting dashboard with live notes, transcription, summaries and meeting metrics as the call runs, on Zoom, Microsoft Teams and Google Meet |
| Speech-to-speech and dubbing | Yes, the Voice Agent API runs speech-to-speech conversations by orchestrating speech-to-text, an LLM and text-to-speech at one all-inclusive rate | No dubbing or speech-to-speech translation |
| Editing and controls | Speaker identification, diarization, custom formatting, key phrase extraction and guardrails for PII redaction, profanity filtering and content moderation | Meeting reports with summary, topics, action items and key questions, a meeting coach scoring talking speed, filler words, bias and charisma with coaching trends, audio and video playback with highlights from the Enterprise plan, Ask Read search across meetings, email and messages with direct access to Anthropic and OpenAI models, audio and video uploads, and workspace rules controlling which meetings Read joins |
| Consent and trust | SOC 2 Type 2, ISO 27001, PCI-DSS and a HIPAA BAA included at no premium; EU region available at identical US pricing for GDPR | Custom assistant branding, naming on all platforms and a logo on Zoom, plus workspace distribution and sharing rules; Enterprise+ adds SAML SSO, SCIM provisioning, domain capture, a custom data retention policy and HIPAA compliance support |
| MCP-ready | Yes | Yes |
| Deployment | Cloud (SaaS), Browser-based | Cloud (SaaS), Browser-based |
| Support | Not stated | Email helpdesk |
| Onboarding | Documentation and knowledge base | more entries Documentation and knowledge base, Guided onboarding |
| Company size | Small and mid-sized, Enterprise | more entries Freelancers, Small and mid-sized, Enterprise |
| Integrations | Not stated | Zoom, Microsoft Teams, Google Meet, HubSpot, Salesforce, Jira, Confluence, Notion, Asana, Slack, Zapier, ChatGPT, Claude |
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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
Key Differences
- Starting price AssemblyAI From $0.15 / hour of audio Read AI Free plan; Pro $19.75 / user / month
- Free trial AssemblyAI $50 in free credits, no credit card required, covering up to 185 hours of pre-recorded or 333 hours of streaming transcription Read AI Free plan with 5 meeting transcripts a month
- Company size AssemblyAI Small and mid-sized, Enterprise Read AI Freelancers, Small and mid-sized, Enterprise
- Languages AssemblyAI 99 languages on Universal-2 and 18 on Universal-3.5 Pro for pre-recorded audio; translation across 100+ languages Read AI Meeting reports in 16+ languages
- Output AssemblyAI Transcripts, structured speech insights and live voice agent conversations Read AI Meeting reports with summary, topics, action items, key questions and a speaker-separated transcript
Every line is one datapoint from the table above, picked automatically. Nothing here is written text.
The trade-offs
Strengths and Limitations
AssemblyAI
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
Read AI
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
Plans
Pricing
AssemblyAI
- Pay-as-you-go From $0.15 / hour No subscription. Pre-recorded transcription $0.15 / hour on Universal-2 and $0.21 / hour on Universal-3.5 Pro, streaming $0.15 / hour on Universal-Streaming and $0.45 / hour on Universal-3.5 Pro Realtime, Voice Agent API $4.50 / hour. Add-ons are billed on top: speaker diarization $0.02 / hour, medical mode $0.15 / hour, keyterms prompting $0.05 / hour on Universal-3.5 Pro and included on Universal-2. Free accounts get 5 new streams per minute, pay-as-you-go accounts 100.
- Custom Not stated Contact sales for custom rate limits, higher concurrency and volume discounts. HIPAA BAA, PCI-DSS, ISO 27001 and SOC 2 Type 2 compliance at no premium, and an EU region at identical US pricing.
Read AI
- Free $0 Five meeting transcripts a month, best-in-class summaries for meetings, email and messaging, personalised meeting coach, basic integrations, topic readouts and one-hour maximum meeting length.
- Pro $19.75 Per user per month, $15 billed annually. Unlimited meeting transcripts and reports, priority report processing, 100 file upload credits a month and premium integrations including Notion, Salesforce, HubSpot, Jira, Confluence, Zapier and webhooks.
- Enterprise $29.75 Per user per month, $22.50 billed annually. Adds audio and video playback, video highlights, 200 file upload credits a month and premium support.
- Enterprise+ $39.75 Per user per month, $29.75 billed annually, five licences or more. Adds HIPAA compliance, SAML and SCIM, domain capture, a custom data retention policy, 300 file upload credits a month and workspace onboarding.
What users say
Review Scores · opens after launch
AssemblyAI
- 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.
Read 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.
Where this comes from
Where this comes from
AssemblyAI https://www.assemblyai.com · checked against the official source on 2026-08-30
Read AI https://www.read.ai · checked against the official source on 2026-09-16
This table lists factual criteria taken from information the vendors publish themselves. For how we put it together, see the methodology.