Ayar Labs
Maker of optical I/O chiplets (TeraPHY, SuperNova) that link AI chips over light instead of copper.
On the record
Checkpoint: Volume-production yield results on TeraPHY/SuperNova, tied to Series E production ramp
The call
Ayar Labs has real shipping optical hardware and deep-pocketed chip-giant backers, but those same backers are also building their own optical I/O, and Marvell just bought a direct rival to chase the same sockets.
Ayar Labs designs special optical chips that help AI data centers move data faster using light instead of electricity. The technology is real and already shipping in small quantities, which proves customers actually want it. But the company faces two big problems: Marvell Technology just bought a direct competitor called Celestial AI for billions of dollars and is racing to sell their own optical chips, and at the same time, Ayar's own investors like Nvidia and AMD are designing their own competing versions for their products. Ayar needs to prove it can manufacture thousands of chips reliably and get major customers to commit to long-term orders before its investors and rivals grab the entire market.
Why
01
AI pressure: Nvidia, AMD, Broadcom, and Intel building in-house optical I/O for their own AI chips. The same AI giants funding Ayar are also developing their own optical I/O, which could let them skip Ayar's chiplets entirely. Could AI do the core job? Unlikely.
02
Bigger players: Marvell Technology (via its Celestial AI acquisition, Feb 2026). Marvell bought Celestial AI for $3.25 to 5.5B and set a $500M FY2028 revenue target, aiming straight at Ayar's optical interconnect market. Could a giant copy it? Probably.
03
What protects it. Shipping silicon (about 15K units), a live UCIe optical chiplet, and cash plus design access from Nvidia, AMD, and Intel as investors.
What would change this call
AMD names its optical-interconnect partner for Helios v2. Shows whether Ayar Labs keeps or loses a key design socket to Marvell/Celestial AI.
Ayar Labs discloses volume-production yield or run-rate revenue from TeraPHY/SuperNova within 12 months. Shows whether it can scale past early shipments into real production.
Nvidia or AMD announces in-house optical I/O for a next-gen platform. Would show Ayar Labs' strategic investors bypassing it with internal solutions.
Ayar Labs discloses volume-production yield or run-rate revenue from TeraPHY/SuperNova within 12 months. Shows whether it can scale past early shipments into real production.
Nvidia or AMD announces in-house optical I/O for a next-gen platform. Would show Ayar Labs' strategic investors bypassing it with internal solutions.
Key numbers
- $500M Series E closed at $3.75B valuation
- About 15,000 optical I/O units shipped to customers
- 8 Tbps UCIe optical chiplet unveiled, first in industry
Named risks
- Must scale from ~15K shipped units to volume production within 6-12 months without yield slips.
- Marvell's cash-rich Celestial AI acquisition creates a well-capitalized direct rival with public earnings clock.
- Nvidia, AMD, Broadcom, and Intel all pursuing in-house optical I/O that could shut Ayar out of sockets.
- Revenue figures from aggregators conflict by nearly 2x and remain unverified by primary reporting.
- A slowdown in AI datacenter capex could pressure the $3.75B valuation reached in March 2026.
Rivals, as read in July 2026
| Rival | Direction | Evidence |
|---|---|---|
| Marvell Technology (via Celestial AI) | gaining on | Closed $3.25-5.5B Celestial AI buy Feb 2026, targets $500M run-rate by FY2028 |
| Nvidia | contesting | Ayar joined NVLink Fusion June 2026 while Nvidia pursues in-house optical I/O roadmap |
| AMD | contesting | AMD Helios rack bundles own networking hardware, Microsoft deal announced July 2026 |
| Lightmatter | contesting | Raised $400M Series D reaching $4.4B valuation as direct optical interconnect rival, March 2026 |
| Broadcom | losing to | Broadcom and Coherent already shipping co-packaged optics as of mid-2026 per industry reporting |
Questions people ask
- Is Ayar Labs profitable in 2026?
- Ayar Labs has not disclosed audited revenue or profit figures. It closed a $500M Series E on March 3, 2026 at a $3.75B valuation specifically to fund volume production, and independent aggregator revenue estimates (Latka, Datanyze) conflict by nearly 2x and remain unverified.
- Who is Ayar Labs' biggest competitor?
- Marvell Technology became Ayar's most direct threat after completing its acquisition of Celestial AI on February 2, 2026 for up to $5.5B, targeting a $500M annualized revenue run-rate for its rival Photonic Fabric optical interconnect by Q4 FY2028.
- Could AI replace Ayar Labs?
- No. Ayar Labs builds physical silicon-photonics hardware (TeraPHY chiplets, SuperNova light source) solving a bandwidth and power bottleneck, not a task AI models perform. Its real risk is being architecturally locked out by Nvidia, AMD, or Marvell's in-house optical roadmaps, not software substitution.
- Who owns Ayar Labs?
- Ayar Labs is privately held and venture-backed, with no parent company. Founded in 2015 by CEO Mark Wade and CTO Vladimir Stojanovic, it has raised roughly $870M total through a March 3, 2026 Series E, with Nvidia, AMD, Intel Capital, and MediaTek as strategic investors.
- Has Ayar Labs actually shipped optical chiplets, or is it still R&D?
- Ayar had shipped approximately 15,000 units to select customers as of December 2024, per Contrary research, and unveiled the industry's first UCIe optical interconnect chiplet on March 31, 2025. Its March 2026 Series E is earmarked to move this into full volume production.
- What is Ayar Labs' relationship with Nvidia and AMD?
- Both Nvidia and AMD are strategic investors in Ayar Labs across its Series D and Series E rounds, and Ayar joined Nvidia's NVLink Fusion ecosystem on June 2, 2026. However, both companies also pursue parallel in-house optical interconnect roadmaps, creating dual investor/competitor dynamics.
Timeline
- 2026-07-20Wiwynn partnership on rack-level optical systems reported
- 2026-06-02Ayar Labs joins Nvidia's NVLink Fusion ecosystem
- 2026-03-03Closes $500M Series E at $3.75B valuation, total funding ~$870M
- 2026-02-02Marvell completes acquisition of rival Celestial AI for up to $5.5B
- 2025-10-01Alchip Technologies partnership announced for CPO manufacturing
- 2025-03-31Unveils industry-first UCIe optical interconnect chiplet, 8 Tbps
- 2025-01-15Series D closes at $155M, reaches unicorn valuation above $1B
- 2022-05-01Nvidia collaboration announced on scale-out optical architectures
- 2022-02-01HPE strategic collaboration announced
- 2020-11-01Series B closes at $35M
Revision history
24 July 2026
First assessed. Losing its protection. The text above is fixed as of this date and is not edited afterwards.
In the same band
Sources
- Ayar Labs Closes $500M Series E, Accelerates Volume Production of Co-Packaged Optics (2026-03-03)
- Ayar Labs Secures $155 Million in Series D Funding (2025-01-15)
- Ayar Labs Capital Raise Targets Generative AI (2023-05-01)
- Ayar Labs - Headcount, Funding & Open Jobs (2026-06-20)
- A shift to photonics for data center networks and AI is underway (2024-11-04)
- Ayar Labs Unveils World's First UCIe Optical Chiplet (2025-03-31)
- Report: Ayar Lab Business Breakdown & Founding Story (2024-12-31)
- Ayar Labs Revenue, Valuation & Funding History (2025) (2025-09-17)
- Management and Employees List (2026-06-20)
- Ayar Labs Bets on Optical I/O for Next-Gen Computing (2022-05-01)
- Ayar Labs Closes $500M Series E (2026-03-13)
- Ayar Labs Joins NVIDIA NVLink Fusion Ecosystem (2026-06-02)