Organization
Zyphra
Zyphra is an AI model developer and research lab headquartered in San Francisco, California389. This catalog lists 2 open model releases from Zyphra, under licenses including the Apache License 2.0.
Documented roles: Model developer · Research lab · Inference provider
Zyphra is a San Francisco AI company that trains open foundation models, including the Zamba hybrid state-space language models and the ZAYA1 mixture-of-experts models. It also runs Zyphra Cloud, a hosted platform for model inference and GPU compute.1758
Using this organization’s offerings
The detailed audience, self-hosting, pricing, and restrictions review has not yet been completed. Consult the sourced product records below and the publisher’s current terms. Missing detail means unknown, not unavailable.
Key facts
- Ownership (separate from openness)
- Privately held
Recorded classification; fact-level ownership verification pending.
- Legal form
- Unknown
- Other documented locations
- London, United Kingdom2
- Founded
- Unknown
- Sectors
- Open models, Research, Cloud
What is and isn’t public
Zyphra publishes model weights on Hugging Face, including the Zamba, ZAYA1, and Zonos models, as well as the Zyda pretraining datasets. Its Zamba2-VL and ZAYA1-8B announcements state Apache 2.0 licensing. Zyphra Cloud and Maia are hosted services. This catalog assesses openness release by release (see the Zamba release records).111085
Products
Hosted model products
Labeled Hosted product/API — this describes how a documented product is delivered (hosted access). It does not determine whether underlying weights or code are open; assess the specific release and its licenses.
| Product | Kind | Documented delivery and access | Reviewed |
|---|---|---|---|
| Maia (external site: zyphra.com) | Assistant app | Agent for teams that works across language, audio, and images and connects to tools such as Gmail, Google Calendar, and Google Drive. The product page links to the Zyphra Cloud login and does not state availability or pricing terms.6 | Sep 29, 2026 |
Other products
| Product | Kind | Documented delivery and access | Reviewed |
|---|---|---|---|
| Zyphra Cloud (external site: zyphra.com) | Inference service | Hosted platform with serverless inference for open-weight models (including a ZAYA1-8B endpoint), reserved capacity for production deployments, and GPU compute. Users sign up and log in at cloud.zyphra.com.58 | Sep 29, 2026 |
Cataloged artifacts
Model families
- ZambaModel family
Model releases
- Zamba2-7BModel releaseAvailability: PublicModel-disclosure tier (USASI rubric v0.2): Open-weight
- Zamba2-VL-7BModel releaseAvailability: PublicModel-disclosure tier (USASI rubric v0.2): Open-weight
Notable documented facts
In the news
Zyphra releases ZUNA1.1, an open-weight EEG foundation model, under Apache 2.0
Zyphra released ZUNA1.1 on July 16, 2026, according to an update note on its post about the model, which carries an August 3, 2026 dateline. Zyphra describes ZUNA1.1 as a 380M-parameter diffusion autoencoder that reconstructs, denoises, and upsamples scalp-EEG signals, and says it now accepts variable-length inputs from 0.5 to 30 seconds. The weights are on Hugging Face under the Apache 2.0 license, with inference code on GitHub and a
zunapip package. Zyphra's disclaimer says its services are for research use only and have not been validated for any medical or clinical use. USASI has not tested this model.
What this catalog does not know
- Founding date: not documented in the sources reviewed.
Have a primary source? How to report a correction.
U.S. eligibility
Eligible · basis: U.S. headquarters
Zyphra's terms of use (May 2026) and privacy policy (August 2026) name Zyphra Technologies, Inc. at 415 Mission Street, San Francisco, and apply California law with San Francisco venue. Its May 2026 release announcement describes the company as headquartered in San Francisco. The about page describes the company as based in San Francisco and London; no foreign parent or headquarters was found.3482
Sources
This listing is not an endorsement or a federal approval.
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Cite this page
APA style
USASI. (2026, October 1). Zyphra. United States of America Superintelligence. https://unitedstatesofamericasuperintelligence.com/companies/zyphra/
BibTeX
@misc{usasi_zyphra,
author = {{USASI}},
title = {Zyphra},
year = {2026},
month = oct,
howpublished = {\url{https://unitedstatesofamericasuperintelligence.com/companies/zyphra/}},
note = {United States of America Superintelligence. Last updated 2026-10-01}
}The date is when this page was last updated. Add the date you read it if your style needs one.
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