DeepInfra vs RadixArk
Which Infrastructure AI tool is better in 2026?
DeepInfra
High-throughput, low-cost AI inference cloud
RadixArk
Open infrastructure for frontier AI, built on SGLang
Side-by-side
DeepInfra is the more established option (raised $133M); pricing is comparable on both sides.
| Metric | DeepInfra | RadixArk |
|---|---|---|
| Taglinei | High-throughput, low-cost AI inference cloud | Open infrastructure for frontier AI, built on SGLang |
| Foundedi | 2022🏆 | 2025 |
| HQi | Palo Alto, US | San Francisco, US |
| Employeesi | 11-50🏆 | 1-10 |
| Neuron scorei | 71 | 72🏆 |
| Total fundingi | $133M🏆 | $100M |
| Latest roundi | Series A | 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 | Open source |
| Categoriesi |
Capability matrix
Developer-facing capabilities and access signals for DeepInfra and RadixArk.
| Capability | DeepInfra | RadixArk |
|---|---|---|
| MCP support | ✗ | ✗ |
| Public API | ✓ | ✓ |
| Webhooks | ✗ | ✗ |
| OAuth 2.0 | ✗ | ✗ |
| SDK languages | — | — |
| Free plan | ✓ | ✓ |
| Free trial | ✓ | ✗ |
| Verified | ✗ | ✗ |
| Active deal | ✗ | ✗ |
🟢 Strengths of DeepInfra
- Has raised more capital ($133M vs $100M)
- Offers a free trial
- More mature (2022)
🔵 Strengths of RadixArk
- Higher Neuron score (72 vs 71)
- 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 DeepInfra if you want the most established option — it has raised $133M, 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
DeepInfra vs RadixArk — which is better?
It depends on your priority. DeepInfra has raised more capital and is the more established option; RadixArk has broader feature depth. See the side-by-side table above.
Is DeepInfra cheaper than RadixArk?
No — RadixArk's cheapest paid plan is Open source, while DeepInfra's is Free.
Do DeepInfra and RadixArk offer free plans?
DeepInfra: Yes, has a free plan. RadixArk: Yes, has a free plan.
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