Tortoise-TTS-Fast

by Community (152334H)

Performance fork of Tortoise — quality kept, latency 5-10x lower.

TL;DR

Performance fork of Tortoise — quality kept, latency 5-10x lower.

Best for researchers + indie devs who want Tortoise-quality output without the 30-90s-per-clip baseline. Pricing: free.

Category
Open source
License
—
Stars
—
Last push
—
Pricing
free
Platforms
Linux, macOS, Windows

What it is

tortoise-tts-fast applies inference optimizations (key-value cache, kv-cache float16, batch generation) to the original Tortoise model. Same quality, dramatically faster. Listed for the OSS-stack reader who's already evaluating Bark / XTTS / F5.

Best for: Researchers + indie devs who want Tortoise-quality output without the 30-90s-per-clip baseline.
Watch out for: English-only (same as upstream Tortoise). Tortoise outputs ship with a model-author disclaimer about consent for voice cloning — keep it. Maintenance is community-effort; not a vendor SLA.

Install / use

pip install tortoise-tts

Features

Speaker diarizationNo
Word-level timestampsNo
Streaming / real-timeNo
Languages supported1
HIPAA eligibleNo

Tortoise-TTS-Fast vs Whipscribe

FeatureTortoise-TTS-FastWhipscribe
CategoryOpen sourceTranscription APIs
Pricingfreefree beta
Speaker diarization—Yes
Word timestamps—Yes
Streaming—No
Languages199
PlatformsLinux, macOS, WindowsWeb, API, MCP

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Whipscribe is a managed faster-whisper + whisperX service. If you want transcripts without running infrastructure, paste a URL or drop a file in the form below — you'll have a transcript in seconds.