Voice & Speech

Insanely Fast Whisper

Accelerates transcription using OpenAI's Whisper Large v2 with HF Transformers and Optimum.

Status
UnmaintainedNo commits in 821 days.
Last checked
Aging · Sep 5, 2026
License
Open source
Pricing
Free tier · from $0
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What it is

This tool accelerates audio transcription by leveraging OpenAI's Whisper Large v2 model, optimized with Hugging Face Transformers and Optimum. It uses flash attention to speed up the process significantly.

Insanely Fast Whisper stands out by offering significant speed improvements through optimized libraries and flash attention, making it ideal for developers looking to integrate fast transcription capabilities into their applications locally.

When it fits — and when it doesn’t

A good fit for

  • Projects needing fast and accurate transcription without cloud dependencies.

  • Applications that require real-time or near-real-time audio processing capabilities.

Look elsewhere if

  • Scenarios where a managed service with automatic scaling is preferred over local deployment.

  • Use cases requiring integration with specific cloud platforms for additional services.

Known weaknesses

Each one links to the public issue, changelog or docs page it came from, where we have one.

  1. 01

    Performance degradation with large audio files

    Flash attention optimization may not scale well with very long audio inputs, leading to slower processing times

What it does well

  • Uses OpenAI's Whisper Large v2 model for high accuracy transcription.

  • Optimized with Hugging Face Transformers and Optimum for speed.

  • Flash attention technique to accelerate the transcription process.

Pricing

Free tier
YesOpen source — free to use
Paid from
$0
Model
Flat rate
Enterprise plan
No

Pricing not independently confirmed — check the vendor’s page.

Performance benchmarks

How Fast Is It?

Set up Insanely Fast Whisper

Setup steps, common gotchas and what to check after 30 days.

Open the setup guide →