FieldAI vs Spirit AI
Which Robotics AI tool is better in 2026?
FieldAI
Physics-first foundation models that are universal brains for robots
Spirit AI
Embodied-intelligence foundation models for general-purpose humanoid robots
Side-by-side
Spirit AI is the more established option (raised $435M); pricing is comparable on both sides.
| Metric | FieldAI | Spirit AI |
|---|---|---|
| Taglinei | Physics-first foundation models that are universal brains for robots | Embodied-intelligence foundation models for general-purpose humanoid robots |
| Foundedi | 2016🏆 | 2024 |
| HQi | Irvine, US | Beijing, CN |
| Employeesi | 51-200 | 51-200 |
| Neuron scorei | 77🏆 | 67 |
| Total fundingi | $405M | $435M🏆 |
| Latest roundi | Series A · Aug 2025 | Series A extension · Apr 2026 |
| Valuationi | $2B🏆 | $1.4B |
| 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 | Free |
| Categoriesi |
Capability matrix
Developer-facing capabilities and access signals for FieldAI and Spirit AI.
| Capability | FieldAI | Spirit AI |
|---|---|---|
| MCP support | ✗ | ✗ |
| Public API | ✗ | ✗ |
| Webhooks | ✗ | ✗ |
| OAuth 2.0 | ✗ | ✗ |
| SDK languages | — | — |
| Free plan | ✓ | ✓ |
| Free trial | ✓ | ✓ |
| Verified | ✗ | ✗ |
| Active deal | ✗ | ✗ |
🟢 Strengths of FieldAI
- Higher Neuron score (77 vs 67)
- More mature (2016)
🔵 Strengths of Spirit AI
- Has raised more capital ($435M vs $405M)
- Newer company (2024)
Which should you choose?
Choose Spirit AI if price matters most — it starts at Free, which is friendlier for teams watching burn. Both AI Robotics tools ship core features, so the cost delta often decides it for small teams and solo operators.
Choose Spirit AI if you want the most established option — it has raised $435M, 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
FieldAI vs Spirit AI — which is better?
It depends on your priority. FieldAI is the leaner option; Spirit AI has broader feature depth. See the side-by-side table above.
Is FieldAI cheaper than Spirit AI?
No — Spirit AI's cheapest paid plan is Free, while FieldAI's is Free.
Do FieldAI and Spirit AI offer free plans?
FieldAI: Yes, has a free plan. Spirit AI: Yes, has a free plan.
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