Array Labs vs Castelion
Which Aerospace AI tool is better in 2026?
Array Labs
3D maps of Earth from formation-flying radar satellites
Castelion
Mass-producing affordable hypersonic weapons for defense
Side-by-side
Castelion is the more established option (raised $469M); pricing is comparable on both sides.
| Metric | Array Labs | Castelion |
|---|---|---|
| Taglinei | 3D maps of Earth from formation-flying radar satellites | Mass-producing affordable hypersonic weapons for defense |
| Foundedi | 2021🏆 | 2022 |
| HQi | — | El Segundo, US |
| Employeesi | 11-50 | 201-500🏆 |
| Neuron scorei | 68 | 76🏆 |
| Total fundingi | $35M | $469M🏆 |
| Latest roundi | Seed | Series B · Dec 2025 |
| Valuationi | — | — |
| 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 | Enterprise · Contact sales |
| Categoriesi |
Capability matrix
Developer-facing capabilities and access signals for Array Labs and Castelion.
| Capability | Array Labs | Castelion |
|---|---|---|
| MCP support | ✗ | ✗ |
| Public API | ✗ | ✗ |
| Webhooks | ✗ | ✗ |
| OAuth 2.0 | ✗ | ✗ |
| SDK languages | — | — |
| Free plan | ✓ | ✗ |
| Free trial | ✓ | ✗ |
| Verified | ✗ | ✗ |
| Active deal | ✗ | ✗ |
🟢 Strengths of Array Labs
- Offers a free plan
- Offers a free trial
- More mature (2021)
🔵 Strengths of Castelion
- Has raised more capital ($469M vs $35M)
- Higher Neuron score (76 vs 68)
- Newer company (2022)
Which should you choose?
Choose Castelion if price matters most — it starts at Enterprise · Contact sales, which is friendlier for teams watching burn. Both AI Aerospace tools ship core features, so the cost delta often decides it for small teams and solo operators.
Choose Castelion if you want the most established option — it has raised $469M, 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
Array Labs vs Castelion — which is better?
It depends on your priority. Array Labs is the leaner option; Castelion has broader feature depth. See the side-by-side table above.
Is Array Labs cheaper than Castelion?
No — Castelion's cheapest paid plan is Enterprise · Contact sales, while Array Labs's is Free.
Do Array Labs and Castelion offer free plans?
Array Labs: Yes, has a free plan. Castelion: Paid only.
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