Flax

by Google

Don’t want to install Flax? Drop the file here.

The first 20 minutes of any recording are transcribed free: a recording up to 20 minutes transcribes in full, a longer one is previewed, and a pack from $6 (500 minutes) transcribes the rest and opens every export, and credits never expire.

JAX neural-net library used by whisper-jax.

Linux, macOS, TPU  ·  free

TL;DR

Best for training Whisper-jax forks + custom JAX speech models. Pricing: free.

Category
Open source
License
Apache-2.0
Stars
★ 7.3k
Last push
2026-08-07
Pricing
free
Platforms
Linux, macOS, TPU

What it is

Google Brain's JAX neural-net library. Apache-2.0.

Best for: Training Whisper-jax forks + custom JAX speech models.
Watch out for: Smaller community than PyTorch.

Install / use

pip install flax

What people actually do with Flax-style transcription

The tool is the means. These are the jobs — each one priced at published rates, each one wired up on its own page.

Wire it into Amazon S3n8nMake.comGoogle DriveZapierSlack

Features

Speaker diarizationNo
Word-level timestampsYes
Streaming / real-timeNo
Languages supported99
HIPAA eligibleNo

Links

GitHub repo ↗

Flax vs Whipscribe

FeatureFlaxWhipscribe
CategoryOpen sourceTranscription APIs
Pricingfree$6–$24 one-time packs (credits never expire) · first 20 minutes free
Speaker identificationNoNamed in the summary, key quotes and chapters
Word timestampsYesYes
StreamingNoNo
Languages9999
PlatformsLinux, macOS, TPUWeb, API, MCP

Alternatives to Flax

Frequently asked about Flax

Is Flax free?

Yes. Flax is free and open source.

Does Flax work on Mac, Windows and Linux?

Flax runs on Linux, macOS and TPU.

How do I install Flax?

With pip: `pip install flax`. You need Python and, for most audio tools, ffmpeg on your PATH first.

How many languages does Flax support?

Flax lists 99 languages. That is the Whisper-family multilingual set, so quality varies by language — English and the large European languages are strongest.

Does Flax identify different speakers?

No. Flax does not label speakers; a conversation comes back as one continuous text. If you need speaker labels, that is a separate tool or a different service.

Does Flax give word-level timestamps?

Yes — Flax produces timing per word, which is what subtitle cues and clip boundaries need.

Can Flax transcribe live audio?

No — Flax works on finished files, not a live stream.

Is Flax HIPAA compliant?

Flax does not claim HIPAA compliance. For PHI, run it on infrastructure you control or choose a service that will sign a BAA.

What are the limitations of Flax?

Smaller community than PyTorch.

Who is Flax best for?

Training Whisper-jax forks + custom JAX speech models.

Does Flax run offline?

Flax runs on your own machine — it is open source, so nothing leaves the computer unless you configure it to.

Can I use Flax in the browser?

No — Flax is a Linux, macOS and TPU application, not a web app. You install it rather than sign in to it.

Where is the Flax source code?

On GitHub at github.com/google/flax. It is maintained by Google.

What kind of tool is Flax?

In this directory Flax is filed under framework, tpu as a open-source tool.

What are the alternatives to Flax?

There is a side-by-side page at /tools/flax-alternatives comparing Flax with the closest tools in the same category on price, platform and features.

Whipscribe is a hosted transcription 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.

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