faster-whisper large-v3

Free.ai (self-hosted) · stt · ~500 tokens per minute

Drop an audio or video file, or paste a URL below

~500 tokens per minute

faster-whisper large-v3 is a speech-to-text model built by OpenAI / SYSTRAN. Strongest at Accurate transcription. Self-hosted on Free.ai GPUs — runs free against your daily token pool (500 tokens per minute). Released under MIT — commercial use permitted on Free.ai.

Use via API

OpenAI-compatible REST API. Generate a key and call this model in seconds.

curl -X POST https://api.free.ai/v1/stt/ \
  -H "Authorization: Bearer sk-free-..." \
  -H "Content-Type: application/json" \
  -d '{"model":"faster-whisper-large-v3","audio_url":"https://..."}'
API Documentation Get API Key

Frequently Asked Questions

faster-whisper large-v3 transcribes spoken audio into text. Upload an MP3, WAV, M4A, or video file and faster-whisper large-v3 returns the full transcript plus optional SRT/VTT subtitles with timestamps.

faster-whisper large-v3 handles dozens of languages — Whisper-family models cover 90+, Parakeet covers ~25, others vary. Pick "auto-detect" or specify the language for highest accuracy.

Word-error rate is 5–10% on clean English audio, 10–20% on noisy or accented audio. Large variants of the same architecture do meaningfully better on hard cases — pick larger when the audio is rough.

Yes — every segment includes start/end timestamps. Export as SRT or VTT and the times map straight onto your video.

faster-whisper large-v3 runs on our own GPUs against your daily free pool first; $5 → 200,000 paid tokens after that. About ~500 tokens per minute.

MP3, WAV, M4A, FLAC, OGG, plus video (MP4, MOV, WebM) — we extract the audio. Max 500 MB per upload. Longer files? Split with /audio/cut/ or use /v1/stt/batch/.

Speaker diarization is a separate pass — toggle "diarize" on /transcribe/. faster-whisper large-v3 handles the transcription; diarization labels each segment with Speaker 1 / Speaker 2 / etc.

Yes — /batch/ accepts a folder of audio files. Each transcript lands in /account/?tab=history with the original filename. For folder-tree preservation use the API.

Yes — POST your audio to /v1/stt/transcribe/ with model="faster-whisper large-v3". Returns JSON with text + segments + word-level timestamps. /api/ has the full reference.

Self-hosted models keep audio on our GPUs; premium pass through with a DPA. Audio is deleted after the share-window (24h anon, 7d signed-in). We do not train on your inputs.

Yes — Free.ai grants commercial use of transcripts. You need rights to the audio you uploaded (your own recording, licensed material, or content with consent).

Real-time factor is roughly 0.05–0.2× — a 60-minute podcast transcribes in 3–12 minutes. Premium models often finish faster. Use the queue button to close the tab.

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