Lightmatter vs Positron
Lightmatter vs Positron, compared side by side on 24 data points: what each one does, how big it is, what it has raised, the tech running each site, and what users report. We score both out of 100 on traction, team and visibility: Lightmatter is on 63/100 and Positron on 49/100.
Where each one leads
Lightmatter
- our overall score: 63/100 against 49/100
- agent readiness: 45/100 against 36/100
- domain rating: 56/100 against 47/100
- headcount: 318 against 75
- LinkedIn following: 63,729 against 7,080
Positron
- funding raised: $825M against $400M
At a glance
| Measure | Lightmatter | Positron |
|---|---|---|
| What it is | Developing photonic computing and interconnect technology to accelerate AI infrastructure and improve energy efficiency. | AI chipmaker focused on energy-efficient hardware as an alternative to Nvidia. |
| Category | Hardware, Semiconductors, Photonics, AI Infrastructure | Hardware, Enterprise, GPU, AI Hardware |
| Sells toBusiness model | B2B | B2B |
| Offering | Hardware | Hardware |
| Founded | 2017 | 2022 |
| Headquarters | Mountain View, United States | San Francisco, United States |
| Status | Active | Active |
Size, funding and growth
| Measure | Lightmatter | Positron |
|---|---|---|
| Employees | 318 | 75 |
| Total funding | $400M | $825M |
| Latest round | Series D | Funding Round |
| Valuation | $4.4B | $5.0B |
| LinkedIn followers | 63,729 | 7,080 |
StartupHub scores
Our own 0-100 ratings. They measure company strength and site quality, not which product suits you.
| Measure | Lightmatter | Positron |
|---|---|---|
| StartupHub scoreOur 0-100 rating | 63/100 | 49/100 |
| Traction | 60/100 | 58/100 |
| Team | 10/100 | 70/100 |
| Community | 8/100 | 15/100 |
| Search visibility | 39/100 | 24/100 |
| Quality | 78/100 | 45/100 |
| Agent readinessHow well an AI agent can read and act on the site | D (45/100) | F (36/100) |
| Domain ratingLink authority, 0-100 | 56/100 | 47/100 |
Technology
Detected on each public site, so it reflects the marketing stack as well as the product.
| Measure | Lightmatter | Positron |
|---|---|---|
| Hosting | Not detected | Vercel |
| CDN | Cloudflare | Vercel |
| CMS | WordPress | Not detected |
| Frameworks | Alpinejs, Tailwind CSS | Next.js |
| Analytics | Google Analytics 4 | Google Analytics 4 |
| Support stack | Not detected | HubSpot |
| Open source | No | Yes |
What users say
| Measure | Lightmatter | Positron |
|---|---|---|
| Reddit sentimentThreads we track | 1 positive, 0 negative across 5 threads | Not published |
“Lightmatter unveils Guide DR, the AI Industries first liquid-cooled laser NIC that quadruples rack density. This isn’t just a product update—it’s a fundamental rethink of how light powers the data center. The future of AI infrastructure is ”r/u/peterbordes
Lightmatter vs Positron: common questions
Which is better, Lightmatter or Positron?
On our 0-100 score Lightmatter rates higher (63/100 against 49/100). The score weights traction, team, visibility and profile completeness, so it reflects company strength rather than which product suits you. We compare the two on 24 data points above: read the rows that match what you are buying for.
How do Lightmatter and Positron compare on the numbers?
Lightmatter leads on our overall score (63/100 against 49/100), agent readiness (45/100 against 36/100), domain rating (56/100 against 47/100), headcount (318 against 75), LinkedIn following (63,729 against 7,080). Positron leads on funding raised ($825M against $400M).
What do real users say about Lightmatter and Positron?
Lightmatter: 1 positive and 0 negative mentions across 5 Reddit threads we track, mostly in r/u/peterbordes.
Read the full Lightmatter review and pricing or the Positron review and pricing. You can also browse other Lightmatter alternatives we track.