WhisperAPI vs Universal-3 Pro by AssemblyAI vs Google Cloud Speech-to-Text vs Sonix

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

Your tool
WhisperAPI
vs
Competitor 1
Universal-3 Pro by AssemblyAI
Competitor 2
Google Cloud Speech-to-Text
Competitor 3
Sonix
Compare
4 tools · best value per row highlighted
Your tool 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 Google Cloud Speech-to-Text
cloud.google.com
Google Cloud Speech-to-Text is a speech recognition API that turns audio into written text.
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Competitor Sonix
sonix.ai
Sonix is transcription software that turns audio and video recordings into text with timestamps and speaker labels.
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Traffic estimated monthly website traffic
Monthly visits
27.3Kvisits/mo
457.8Kvisits/mo
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MoM change
▲ 10.3%
▼ 12.0%
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6-month growth
+41.8%
-16.3%
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Global rank web
#1,130,497
#87,404
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Avg. last 3 months
25.6K
518.4K
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Bounce rate lower is better
40%
37%
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Pages / visit
1.7
4.0
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Visit duration
14s
3m 12s
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Traffic sources
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● Direct 91% · ● Referral 8%
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WhisperAPIUniversal-3 Pro by AssemblyAIGoogle Cloud Speech-to-TextSonix
0157.2K314.4K471.5K628.7KWhisperAPI · 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 · 457.8K10K100K1MWhisperAPI · 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
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Free Trial
Starting price
$10per month · free tier available
Free tier
—
$25per month
Free tier
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Free trial
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API access
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Plans
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
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Pay As You Go $10Core $25/moAdvanced $50/moPro $80/mo+1 more
Capabilities input → output
Input
AudioVideo
Audio
AudioVideo
AudioDocumentsVideo
Output
Text
Text
Text
Text
Skill level
Advanced
Advanced
Advanced
Beginner-friendly
Categories
Voice & SpeechWriting & ContentAI Subtitle GeneratorAI Transcription
Development & CodeVoice & SpeechAI APIAI Transcription
Voice & SpeechWriting & ContentAI Subtitle GeneratorAI Transcription
Education & LearningVoice & SpeechWriting & ContentAI Subtitle Generator+2 more
Tasks what each tool can do · 1 shared · core   partial
Tasks covered
1
3
1
2
Transcription
APIs
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Translations
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Podcast transcription
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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.