Organization
Lightmatter
Lightmatter is a chip designer and hardware maker headquartered in Mountain View, California12. No open models or tools from Lightmatter are in this catalog yet; its documented products are listed below.
Documented roles: Chip designer · Hardware manufacturer
Lightmatter develops silicon photonics for AI infrastructure. Its Passage family covers optical interconnects in co-packaged, near-packaged, and on-board form factors, plus a photonic interposer reference platform, and its Guide light engine is a laser source for co-packaged optics. It says Passage and Guide are available to early-access partners.15
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
What is and isn’t public
No openness summary has been written for this organization yet.
Products
No hosted model products are recorded for this organization.
Other products
| Product | Kind | Documented delivery and access | Reviewed |
|---|---|---|---|
| Passage L200 (external site: lightmatter.co) | Hardware | 3D co-packaged optics that stack a photonic IC beneath the electronic IC so optical I/O can be placed across the die surface, in L200 and higher-bandwidth L200X variants; offered through design partnerships.6 | Oct 1, 2026 |
| Passage L20 (external site: lightmatter.co) | Hardware | Bidirectional optical interconnect modules for near-packaged optics (NPO) and on-board optics (OBO), placed on the host board near a switch or accelerator ASIC; specifications are available on request.7 | Oct 1, 2026 |
| Passage M1000 evaluation kit (external site: lightmatter.co) | Hardware | Reference server platform built around the M1000 photonic interposer, on which I/O chiplets are 3D-stacked, offered as an evaluation kit on request.8 | Oct 1, 2026 |
| Guide light engine (external site: lightmatter.co) | Hardware | Very Large Scale Photonics (VLSP) light engine that integrates laser arrays into a module as an external light source for co-packaged optics, with software-defined control and telemetry.9 | Oct 1, 2026 |
Cataloged artifacts
No artifact records in this catalog list Lightmatter. That is not evidence that none exist — only that none have been reviewed here.
In the news
Open Silicon Photonics for AI Systems initiative becomes an Open Compute Project workstream
Lightmatter announced on August 13, 2026 that the Open Silicon Photonics for AI Systems initiative, first announced earlier in the year, has launched as an official workstream within the Open Compute Project. The coalition's members include Dell Technologies, Qualcomm and Lightmatter, and the initiative has published a white paper titled "Architecture Vision: Open Silicon Photonics for AI Systems." Lightmatter says the paper will guide the development of a shared co-packaged optics (CPO) blueprint for AI clusters that comply with the Modular Hardware System (MHS) and Open Rack v3 (ORv3) designs. The release says submission of the first specifications is anticipated in the fourth quarter of 2026.
Open positions
62 recently confirmed positions in this catalog.
Last successful source check: Oct 15, 2026, 12:31 PM UTC
What this catalog does not know
- Openness: no summary has been assessed for this organization.
- Open artifacts: none from this organization are in the catalog yet.
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U.S. eligibility
Eligible · basis: U.S. headquarters
Lightmatter's about and contact pages list Mountain View, California (250 Bryant Street) as its headquarters, with further offices in Boston, Toronto, and Hsinchu. Its website terms of use identify the operator as Lightmatter, Inc. Older legal pages (terms effective 2022, privacy policy effective 2024) give Boston contact addresses; both cities are in the United States.1234
Sources
This listing is not an endorsement or a federal approval.
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APA style
USASI. (2026, October 1). Lightmatter. United States of America Superintelligence. https://unitedstatesofamericasuperintelligence.com/companies/lightmatter/
BibTeX
@misc{usasi_lightmatter,
author = {{USASI}},
title = {Lightmatter},
year = {2026},
month = oct,
howpublished = {\url{https://unitedstatesofamericasuperintelligence.com/companies/lightmatter/}},
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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