NVIDIA Apex
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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.
Mixed-precision / fused ops library used in NeMo training.
Best for whisper / Conformer training with FP16 / fused optimizers. Pricing: free.
What it is
NVIDIA's library of training primitives. BSD-3-Clause.
Watch out for: Build complexity; superseded for some uses by torch.amp.
Install / use
git clone https://github.com/NVIDIA/apexWhat people actually do with NVIDIA Apex-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 Make.comGoogle DriveEmergentNotionYouTubeAmazon S3
Features
| Speaker diarization | No |
| Word-level timestamps | Yes |
| Streaming / real-time | No |
| Languages supported | 99 |
| HIPAA eligible | No |
Links
NVIDIA Apex vs Whipscribe
| Feature | NVIDIA Apex | Whipscribe |
|---|---|---|
| Category | Open source | Transcription APIs |
| Pricing | free | $6–$24 one-time packs (credits never expire) · first 20 minutes free |
| Speaker identification | No | Named in the summary, key quotes and chapters |
| Word timestamps | Yes | Yes |
| Streaming | No | No |
| Languages | 99 | 99 |
| Platforms | Linux | Web, API, MCP |
Alternatives to NVIDIA Apex
Frequently asked about NVIDIA Apex
Is NVIDIA Apex free?
Yes. NVIDIA Apex is free and open source.
Does NVIDIA Apex work on Mac, Windows and Linux?
NVIDIA Apex runs on Linux. It is not listed for other platforms; check the vendor for anything beyond Linux.
How do I install NVIDIA Apex?
Clone and run it from source: `git clone https://github.com/NVIDIA/apex`. Expect to install its dependencies yourself — the README has the exact steps per OS.
How many languages does NVIDIA Apex support?
NVIDIA Apex lists 99 languages. That is the Whisper-family multilingual set, so quality varies by language — English and the large European languages are strongest.
Does NVIDIA Apex identify different speakers?
No. NVIDIA Apex 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 NVIDIA Apex give word-level timestamps?
Yes — NVIDIA Apex produces timing per word, which is what subtitle cues and clip boundaries need.
Can NVIDIA Apex transcribe live audio?
No — NVIDIA Apex works on finished files, not a live stream.
Is NVIDIA Apex HIPAA compliant?
NVIDIA Apex 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 NVIDIA Apex?
Build complexity; superseded for some uses by torch.amp.
Who is NVIDIA Apex best for?
Whisper / Conformer training with FP16 / fused optimizers.
Does NVIDIA Apex run offline?
NVIDIA Apex runs on your own machine — it is open source, so nothing leaves the computer unless you configure it to.
Can I use NVIDIA Apex in the browser?
No — NVIDIA Apex is a Linux application, not a web app. You install it rather than sign in to it.
Where is the NVIDIA Apex source code?
On GitHub at github.com/NVIDIA/apex.
What kind of tool is NVIDIA Apex?
In this directory NVIDIA Apex is filed under framework, accelerator, nvidia as a open-source tool.
What are the alternatives to NVIDIA Apex?
There is a side-by-side page at /tools/nvidia-apex-alternatives comparing NVIDIA Apex with the closest tools in the same category on price, platform and features.
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