Cobalt Speech (Cubic / Diatheke)

by Cobalt Speech & Language

Don’t want to install Cobalt Speech? 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.

On-prem ASR + dialog stack popular in defense, regulated finance, and accessibility.

On-prem, API  ·  Contact sales

TL;DR

Best for air-gapped, defense, finance, or accessibility deployments where the audio must never leave the customer network. Pricing: Contact sales.

Category
Products
Pricing
Contact sales
Platforms
On-prem, API

What it is

Cobalt Speech & Language builds Cubic (ASR), Luna (TTS) and Diatheke (dialog) — a complete speech stack delivered as containerized software for on-prem and air-gapped deployments. The company has government, defense, and accessibility customers and is one of the few options for fully offline enterprise ASR with vendor support. Pricing is contract-based. Best fit: air-gapped, defense, finance, or accessibility deployments where the audio must never leave the customer network. Caveats: b2b sales only; pricing is per-deployment, not per-minute. Feature flags from vendor docs: speaker diarization, word-level timestamps, streaming, HIPAA-eligible under BAA. Directory tags: on-prem, voice-intel. Last vendor-page check: 2026-05-12.

Best for: Air-gapped, defense, finance, or accessibility deployments where the audio must never leave the customer network.
Watch out for: B2B sales only; pricing is per-deployment, not per-minute.

Install / use

Contact Cobalt for Cubic container deployment

What people actually do with Cobalt Speech (Cubic / Diatheke)-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 diarizationYes
Word-level timestampsYes
Streaming / real-timeYes
Languages supportedNone
HIPAA eligibleYes

Cobalt Speech (Cubic / Diatheke) vs Whipscribe

FeatureCobalt Speech (Cubic / Diatheke)Whipscribe
CategoryProductsTranscription APIs
PricingNot verified$6–$24 one-time packs (credits never expire) · first 20 minutes free
Speaker identificationNot verifiedNamed in the summary, key quotes and chapters
Word timestampsNot verifiedYes
StreamingNot verifiedNo
Languages—99
PlatformsOn-prem, APIWeb, API, MCP

Alternatives to Cobalt Speech (Cubic / Diatheke)

Frequently asked about Cobalt Speech (Cubic / Diatheke)

How much does Cobalt Speech (Cubic / Diatheke) cost?

Cobalt Speech (Cubic / Diatheke) does not publish a self-serve price — it is quoted by the vendor on contact. Expect an enterprise-style agreement rather than a card-and-go signup.

Does Cobalt Speech (Cubic / Diatheke) work on Mac, Windows and Linux?

Cobalt Speech (Cubic / Diatheke) runs on On-prem and API. It is not listed for other platforms; check the vendor for anything beyond On-prem and API.

How do I get started with Cobalt Speech (Cubic / Diatheke)?

There is nothing to install — Cobalt Speech (Cubic / Diatheke) is used in the browser. Create an account on the vendor's site and upload or connect your audio.

What are the limitations of Cobalt Speech (Cubic / Diatheke)?

B2B sales only; pricing is per-deployment, not per-minute.

Who is Cobalt Speech (Cubic / Diatheke) best for?

Air-gapped, defense, finance, or accessibility deployments where the audio must never leave the customer network.

Is Cobalt Speech (Cubic / Diatheke) open source?

No. Cobalt Speech (Cubic / Diatheke) is a proprietary product from Cobalt Speech & Language. If you need source you can read and run yourself, the open-source tools in this directory are the place to look.

Can I use Cobalt Speech (Cubic / Diatheke) in the browser?

No — Cobalt Speech (Cubic / Diatheke) is a On-prem and API application, not a web app. You install it rather than sign in to it.

Who makes Cobalt Speech (Cubic / Diatheke)?

Cobalt Speech (Cubic / Diatheke) is made by Cobalt Speech & Language.

What kind of tool is Cobalt Speech (Cubic / Diatheke)?

In this directory Cobalt Speech (Cubic / Diatheke) is filed under on prem, voice intel as a product.

What are the alternatives to Cobalt Speech (Cubic / Diatheke)?

There is a side-by-side page at /tools/cobalt-speech-alternatives comparing Cobalt Speech (Cubic / Diatheke) with the closest tools in the same category on price, platform and features.

Can I automate Cobalt Speech (Cubic / Diatheke)-style transcription without running it myself?

Yes. If what you want is transcripts rather than the tool itself, Whipscribe does the same job as a hosted API: submit a file or URL, poll a job id, pull the result as txt, json, srt, vtt or docx. $0.012 a minute — about $0.72 an audio hour — bought as credits that never expire. The automation recipes on this site show it wired to Drive folders, Zoom recordings, S3 buckets and no-code platforms.

How is Whipscribe different from Cobalt Speech (Cubic / Diatheke)?

Cobalt Speech (Cubic / Diatheke) is another vendor's product; Whipscribe is a per-minute transcription service. Recordings are transcribed on our own servers and never used for training, and every job returns five formats plus an AI summary, quotes and topics. The first 20 minutes of any recording are transcribed free, and a pack from $6 (500 minutes) transcribes the rest and opens every export.

What does transcription cost if I use Whipscribe instead of Cobalt Speech (Cubic / Diatheke)?

$0.012 a minute — about $0.72 an audio hour — bought as credits that never expire. There is no subscription and no monthly minimum: a 3-hour recording is about $2.16, a thousand-hour archive is about $720 once. The first 20 minutes of any recording are transcribed free, and a pack from $6 (500 minutes) transcribes the rest and opens every export, so you can see what your recording holds before paying anything.

Where is the Cobalt Speech (Cubic / Diatheke) category heading?

Three things are moving across the whole speech-to-text market right now: summaries, action items and speaker insights generated on top of the transcript rather than sold separately; private, secured deployment where the audio never leaves a boundary you control; and agent access — transcription exposed as a tool that Claude, Cursor or a workflow runner can call directly. Whipscribe ships all three today: per-job insights, our own servers, and an MCP server.

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.

Transcribe your recordings

Explore

Long recording to get through?

One file up to 10 hours, as an upload or a link: see transcribing a long MP3 or M4A, a podcast episode as text from its link and an SRT subtitle file from any recording.

Comparing tools before you pay?

If you would rather pay a service than run software yourself: see the best transcription services side by side, the cheapest way to transcribe an hour of audio and our transcription service with prices and turnaround.