Celestial AI vs Scale AI
Which Infrastructure AI tool is better in 2026?
Celestial AI
Photonic Fabric optical interconnect for AI infrastructure
Scale AI
Data labeling and AI infrastructure platform powering frontier models for enterprises and governments.
Side-by-side
Scale AI is the more established option (raised $14.3B); pricing is comparable on both sides.
| Metric | Celestial AI | Scale AI |
|---|---|---|
| Taglinei | Photonic Fabric optical interconnect for AI infrastructure | Data labeling and AI infrastructure platform powering frontier models for enterprises and governments. |
| Foundedi | 2020 | 2016🏆 |
| HQi | Santa Clara, United States | San Francisco, US |
| Employeesi | — | 1000+🏆 |
| Neuron scorei | 77🏆 | 54 |
| Total fundingi | $515M | $14.3B🏆 |
| Latest roundi | Series C1 · Mar 2025 | Strategic · Jun 2025 |
| Valuationi | — | $29B🏆 |
| Cheapest paid plani | Pricing not disclosed | — |
| Free plani | ✗ | ✗ |
| Free triali | ✗ | ✗ |
| Top tier pricei | Pricing not disclosed | Enterprise / Custom · Contact sales |
| Pricing summaryi | Custom | 1 published plans |
| Categoriesi |
Capability matrix
Developer-facing capabilities and access signals for Celestial AI and Scale AI.
| Capability | Celestial AI | Scale AI |
|---|---|---|
| MCP support | ✗ | ✗ |
| Public API | ✗ | ✓ |
| Webhooks | ✗ | ✓ |
| OAuth 2.0 | ✗ | ✓ |
| SDK languages | — | 1 (Python) |
| Free plan | ✗ | ✗ |
| Free trial | ✗ | ✗ |
| Verified | ✗ | ✓ |
| Active deal | ✗ | ✗ |
🟢 Strengths of Celestial AI
- Higher Neuron score (77 vs 54)
- Newer company (2020)
🔵 Strengths of Scale AI
- Has raised more capital ($14.3B vs $515M)
- More mature (2016)
- Verified profile
Which should you choose?
Choose Scale AI 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 Scale AI if you want the most established option — it has raised $14.3B, 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
Celestial AI vs Scale AI — which is better?
It depends on your priority. Celestial AI is the leaner option; Scale AI has broader feature depth. See the side-by-side table above.
Is Celestial AI cheaper than Scale AI?
No — Scale AI's cheapest paid plan is Enterprise · Contact sales, while Celestial AI's is Custom.
Do Celestial AI and Scale AI offer free plans?
Celestial AI: Paid only. Scale AI: Paid only.
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