Lightmatter vs Nebius
Which Infrastructure AI tool is better in 2026?
Lightmatter
Photonic chips that move data with light for next-gen AI data centers
Nebius
Full-stack AI cloud with large-scale GPU clusters for training and inference
Side-by-side
Lightmatter leads on both fronts — more capital raised ($850M) and a lower entry price than Nebius.
| Metric | Lightmatter | Nebius |
|---|---|---|
| Taglinei | Photonic chips that move data with light for next-gen AI data centers | Full-stack AI cloud with large-scale GPU clusters for training and inference |
| Foundedi | 2017🏆 | 2024 |
| HQi | Boston, US | Amsterdam, Netherlands |
| Employeesi | 201-500🏆 | 1000 |
| Neuron scorei | 66 | 77🏆 |
| Total fundingi | $850M🏆 | $700M |
| Latest roundi | Series D · Oct 2024 | private_placement · Dec 2024 |
| Valuationi | $4.4B🏆 | — |
| Cheapest paid plani | —🏆 | Pricing not disclosed |
| Free plani | ✗ | ✗ |
| Free triali | ✗ | ✓ |
| Top tier pricei | Enterprise · Contact sales | Pricing not disclosed |
| Pricing summaryi | 1 published plans | Free trial |
| Categoriesi |
Capability matrix
Developer-facing capabilities and access signals for Lightmatter and Nebius.
| Capability | Lightmatter | Nebius |
|---|---|---|
| MCP support | ✗ | ✗ |
| Public API | ✗ | ✓ |
| Webhooks | ✗ | ✗ |
| OAuth 2.0 | ✗ | ✗ |
| SDK languages | — | 4 (Python, REST API, CLI, Terraform) |
| Free plan | ✗ | ✗ |
| Free trial | ✗ | ✓ |
| Verified | ✗ | ✗ |
| Active deal | ✗ | ✗ |
🟢 Strengths of Lightmatter
- Has raised more capital ($850M vs $700M)
- More mature (2017)
🔵 Strengths of Nebius
- Higher Neuron score (77 vs 66)
- Offers a free trial
- Newer company (2024)
Which should you choose?
Choose Lightmatter if price matters most — it starts at Enterprise · Contact sales, which is friendlier for teams watching burn. Both AI Infrastructure tools ship core features, so the cost delta often decides it for small teams and solo operators.
Choose Lightmatter if you want the most established option — it has raised $850M, suggesting more runway for enterprise features, support, and long-term roadmap. For mission-critical workflows or larger teams, that stability often outweighs a lower monthly price.
Frequently asked questions
Lightmatter vs Nebius — which is better?
It depends on your priority. Lightmatter has raised more capital and is the more established option; Nebius has broader feature depth. See the side-by-side table above.
Is Lightmatter cheaper than Nebius?
Yes — Lightmatter's cheapest paid plan is Enterprise · Contact sales, while Nebius's is Free trial.
Do Lightmatter and Nebius offer free plans?
Lightmatter: Paid only. Nebius: Free trial only.
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