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Speech Recognition Lab
Web Speech API vs Whisper (Cloudflare Workers AI)
Web Speech API
Whisper (CF)
Language
English (US)
English (UK)
Japanese
French
German
Spanish
Chinese (Simplified)
Korean
Max Alternatives
1
3
5
10
Continuous
Interim Results
Expected text (optional - for comparison)
Mic Start
Clear
Copy
TTS
Ready
Transcript
Comparison
Raw Results (newest first)
Expected word / phrase (used as initial_prompt for biasing)
Send as initial_prompt (contextual biasing)
Record & Send
Clear
Re-login
Ready — tap Record, speak, tap Stop
Whisper Result
History (newest first)