Speechmatics | AI Voice Agents vs WhisperAPI vs Universal-3 Pro by AssemblyAI vs Rev

Which one fits you in 2026? Traffic, pricing, input → output, tasks and community side by side.

Your tool
Speechmatics | AI Voice Agents
vs
Competitor 1
WhisperAPI
Competitor 2
Universal-3 Pro by AssemblyAI
Competitor 3
Rev
Compare
4 tools · best value per row highlighted
Your tool Speechmatics | AI Voice Agents
speechmatics.com
Sub-second speech-to-text across 55+ languages with AI voice agents
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Competitor WhisperAPI
whisper-api.com
WhisperAPI lets you upload 10GB video files
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Competitor Universal-3 Pro by AssemblyAI
assemblyai.com
Speech-to-text API built for accuracy at scale
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Competitor Rev
rev.com
Rev is an investigative intelligence and legal transcription service that turns recordings, documents, and photos into citable findings.
Make main Remove
Traffic estimated monthly website traffic
Monthly visits
276.5Kvisits/mo
27.3Kvisits/mo
457.8Kvisits/mo
—
MoM change
▼ 8.9%
▲ 10.3%
▼ 12.0%
—
6-month growth
+26.7%
+41.8%
-16.3%
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Global rank web
#155,675
#1,130,497
#87,404
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Avg. last 3 months
278.4K
25.6K
518.4K
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Bounce rate lower is better
43%
40%
37%
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Pages / visit
3.2
1.7
4.0
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Visit duration
1m 55s
14s
3m 12s
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Traffic sources
● Direct 87% · ● Referral 12%
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● Direct 91% · ● Referral 8%
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Speechmatics | AI Voice AgentsWhisperAPIUniversal-3 Pro by AssemblyAIRev
0157.2K314.4K471.5K628.7KSpeechmatics | AI Voice Agents · 170.8KSpeechmatics | AI Voice Agents · 190.6KSpeechmatics | AI Voice Agents · 185.2KSpeechmatics | AI Voice Agents · 218.3KSpeechmatics | AI Voice Agents · 202KSpeechmatics | AI Voice Agents · 206.5KSpeechmatics | AI Voice Agents · 255.1KSpeechmatics | AI Voice Agents · 303.5KSpeechmatics | AI Voice Agents · 276.5KWhisperAPI · 17.8KWhisperAPI · 25.7KWhisperAPI · 26.6KWhisperAPI · 19.2KWhisperAPI · 23.8KWhisperAPI · 25.8KWhisperAPI · 24.8KWhisperAPI · 24.7KWhisperAPI · 27.3KUniversal-3 Pro by AssemblyAI · 568.9KUniversal-3 Pro by AssemblyAI · 565KUniversal-3 Pro by AssemblyAI · 595.5KUniversal-3 Pro by AssemblyAI · 506.7KUniversal-3 Pro by AssemblyAI · 547.2KUniversal-3 Pro by AssemblyAI · 590.1KUniversal-3 Pro by AssemblyAI · 628.7KUniversal-3 Pro by AssemblyAI · 577KUniversal-3 Pro by AssemblyAI · 520.4KUniversal-3 Pro by AssemblyAI · 457.8K10K100K1MSpeechmatics | AI Voice Agents · 170.8KSpeechmatics | AI Voice Agents · 190.6KSpeechmatics | AI Voice Agents · 185.2KSpeechmatics | AI Voice Agents · 218.3KSpeechmatics | AI Voice Agents · 202KSpeechmatics | AI Voice Agents · 206.5KSpeechmatics | AI Voice Agents · 255.1KSpeechmatics | AI Voice Agents · 303.5KSpeechmatics | AI Voice Agents · 276.5KWhisperAPI · 17.8KWhisperAPI · 25.7KWhisperAPI · 26.6KWhisperAPI · 19.2KWhisperAPI · 23.8KWhisperAPI · 25.8KWhisperAPI · 24.8KWhisperAPI · 24.7KWhisperAPI · 27.3KUniversal-3 Pro by AssemblyAI · 568.9KUniversal-3 Pro by AssemblyAI · 565KUniversal-3 Pro by AssemblyAI · 595.5KUniversal-3 Pro by AssemblyAI · 506.7KUniversal-3 Pro by AssemblyAI · 547.2KUniversal-3 Pro by AssemblyAI · 590.1KUniversal-3 Pro by AssemblyAI · 628.7KUniversal-3 Pro by AssemblyAI · 577KUniversal-3 Pro by AssemblyAI · 520.4KUniversal-3 Pro by AssemblyAI · 457.8KNov '25DecJan '26FebMarAprMayJunJulAug
Pricing
Model
Freemium
Freemium
Freemium
Free Trial
Starting price
Free tier
$10per month · free tier available
Free tier
$25.49per month
Free tier
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Free trial
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API access
–
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Plans
Free FreePro $0.13
Free Trial FreePay-As-You-Go (40 credits) $10Pay-As-You-Go (100 credits) $20Pay-As-You-Go (200 credits) $30+1 more
Free Trial FreePay-as-you-go Universal-2 $0.15/moPay-as-you-go Universal-3.5 Pro $0.21/mo
Human Transcription $1.99AI Transcription subscription (annual) $25.49/moAI Transcription subscription (monthly) $29.99/moGlobal Subtitles $6.49
Capabilities input → output
Input
Audio
AudioVideo
Audio
AudioDocumentsImagesVideo
Output
Text
Text
Text
DocumentsText
Skill level
Advanced
Advanced
Advanced
Intermediate
Categories
Development & CodeVoice & SpeechAI APIAI Transcription
Voice & SpeechWriting & ContentAI Subtitle GeneratorAI Transcription
Development & CodeVoice & SpeechAI APIAI Transcription
Legal & FinanceVoice & SpeechWriting & ContentAI Legal Assistant+2 more
Tasks what each tool can do · 1 shared · core   partial
Tasks covered
3
5
3
7
Transcription
APIs
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Podcast transcription
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Audio video transcription
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–
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Video transcription
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–
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Voice agents
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–
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Video subtitles
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–
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Document analysis
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–
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Legal documents review
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–
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Legal documents summaries
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–
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Legal drafting
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–
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Multilingual subtitle creation
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–
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Community on aitoolstime
Rating
no ratings yet
no ratings yet
no ratings yet
no ratings yet
Upvotes
▲ 0
▲ 0
▲ 0
▲ 0
Saves
0
0
0
0
Reviews
0
0
0
0
Prompts
0
0
0
0
Verified listing
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Traffic figures are third-party estimates for the tool's own domain; tools sharing a domain with a bigger product are not counted. Pricing is captured from each tool's site and may lag.