WhisperAPI vs Universal-3 Pro by AssemblyAI vs OpenAI Whisper API vs Soniox

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
OpenAI Whisper API
Competitor 3
Soniox
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 OpenAI Whisper API
platform.openai.com
OpenAI Whisper API is the speech-to-text service developers call to convert recorded audio into text.
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Competitor Soniox
soniox.com
Soniox is a speech AI platform that offers real-time speech-to-text, text-to-speech and speech translation through one API.
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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 AssemblyAIOpenAI Whisper APISoniox
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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Paid
Starting price
$10per month · free tier available
Free tier
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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
gpt-transcribe Customgpt-4o-transcribe Customgpt-4o-mini-transcribe Customgpt-realtime-whisper Custom
Speech-to-Text async $0.10Speech-to-Text real-time $0.12Text-to-Speech $0.70
Capabilities input → output
Input
AudioVideo
Audio
Audio
AudioText
Output
Text
Text
Text
AudioText
Skill level
Advanced
Advanced
Advanced
Advanced
Categories
Voice & SpeechWriting & ContentAI Subtitle GeneratorAI Transcription
Development & CodeVoice & SpeechAI APIAI Transcription
Development & CodeVoice & SpeechAI APIAI Transcription
Education & LearningVoice & SpeechAI Text-to-SpeechAI Transcription+1 more
Tasks what each tool can do · 1 shared · core   partial
Tasks covered
1
3
4
3
Transcription
APIs
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Podcast transcription
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Text to speech
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Translations
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Call transcriptions
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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.