Nebius vs RadixArk
Which Infrastructure AI tool is better in 2026?
Nebius
Full-stack AI cloud with large-scale GPU clusters for training and inference
RadixArk
Open infrastructure for frontier AI, built on SGLang
Side-by-side
Nebius is the more established option (raised $700M); pricing is comparable on both sides.
| Metric | Nebius | RadixArk |
|---|---|---|
| Taglinei | Full-stack AI cloud with large-scale GPU clusters for training and inference | Open infrastructure for frontier AI, built on SGLang |
| Foundedi | 2024🏆 | 2025 |
| HQi | Amsterdam, Netherlands | San Francisco, US |
| Employeesi | 1000🏆 | 1-10 |
| Neuron scorei | 77🏆 | 56 |
| Total fundingi | $700M🏆 | $100M |
| Latest roundi | private_placement · Dec 2024 | Seed · May 2026 |
| Valuationi | — | $400M🏆 |
| Cheapest paid plani | Pricing not disclosed | Pricing not disclosed |
| Free plani | ✗ | ✓ |
| Free triali | ✓ | ✗ |
| Top tier pricei | Pricing not disclosed | Pricing not disclosed |
| Pricing summaryi | Free trial | Open source |
| Categoriesi |
Capability matrix
Developer-facing capabilities and access signals for Nebius and RadixArk.
| Capability | Nebius | RadixArk |
|---|---|---|
| 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 Nebius
- Has raised more capital ($700M vs $100M)
- Higher Neuron score (77 vs 56)
- Offers a free trial
- More mature (2024)
🔵 Strengths of RadixArk
- Offers a free plan
- Newer company (2025)
Which should you choose?
Choose RadixArk if price matters most — it starts at Open source, 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 Nebius if you want the most established option — it has raised $700M, 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
Nebius vs RadixArk — which is better?
It depends on your priority. Nebius has raised more capital and is the more established option; RadixArk has broader feature depth. See the side-by-side table above.
Is Nebius cheaper than RadixArk?
No — RadixArk's cheapest paid plan is Open source, while Nebius's is Free trial.
Do Nebius and RadixArk offer free plans?
Nebius: Free trial only. RadixArk: Yes, has a free plan.
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