Celestial AI vs Modal
Which Infrastructure AI tool is better in 2026?
Celestial AI
Photonic Fabric optical interconnect for AI infrastructure
Modal
High-performance AI infrastructure with sub-second cold starts and instant autoscaling.
Side-by-side
Modal leads on both fronts — more capital raised ($1.2B) and a lower entry price than Celestial AI.
| Metric | Celestial AI | Modal |
|---|---|---|
| Taglinei | Photonic Fabric optical interconnect for AI infrastructure | High-performance AI infrastructure with sub-second cold starts and instant autoscaling. |
| Foundedi | 2020🏆 | 2021 |
| HQi | Santa Clara, United States | New York, US |
| Employeesi | — | 51-200🏆 |
| Neuron scorei | 48 | 70🏆 |
| Total fundingi | $515M | $1.2B🏆 |
| Latest roundi | Series C1 · Mar 2025 | series-d · Oct 2026 |
| Valuationi | — | $4.7B🏆 |
| Cheapest paid plani | Pricing not disclosed | Pricing not disclosed🏆 |
| Free plani | ✗ | ✗ |
| Free triali | ✗ | ✗ |
| Top tier pricei | Pricing not disclosed | Pricing not disclosed |
| Pricing summaryi | Custom | Freemium |
| Categoriesi |
Capability matrix
Developer-facing capabilities and access signals for Celestial AI and Modal.
| Capability | Celestial AI | Modal |
|---|---|---|
| MCP support | ✗ | ✗ |
| Public API | ✗ | ✓ |
| Webhooks | ✗ | ✗ |
| OAuth 2.0 | ✗ | ✗ |
| SDK languages | — | 1 (python) |
| Free plan | ✗ | ✗ |
| Free trial | ✗ | ✗ |
| Verified | ✗ | ✗ |
| Active deal | ✗ | ✗ |
🟢 Strengths of Celestial AI
- More mature (2020)
🔵 Strengths of Modal
- Has raised more capital ($1.2B vs $515M)
- Higher Neuron score (70 vs 48)
- Newer company (2021)
Which should you choose?
Choose Modal if price matters most — it starts at Freemium, 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 Modal if you want the most established option — it has raised $1.2B, 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 Modal — which is better?
It depends on your priority. Celestial AI is the leaner option; Modal is cheaper to start. See the side-by-side table above.
Is Celestial AI cheaper than Modal?
No — Modal's cheapest paid plan is Freemium, while Celestial AI's is Custom.
Do Celestial AI and Modal offer free plans?
Celestial AI: Paid only. Modal: Paid only.
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