Physical Intelligence vs Spirit AI
Which Robotics AI tool is better in 2026?
Physical Intelligence
Foundation models for physical world AI
Spirit AI
Embodied-intelligence foundation models for general-purpose humanoid robots
Side-by-side
Physical Intelligence is the more established option (raised $600M); pricing is comparable on both sides.
| Metric | Physical Intelligence | Spirit AI |
|---|---|---|
| Taglinei | Foundation models for physical world AI | Embodied-intelligence foundation models for general-purpose humanoid robots |
| Foundedi | 2023🏆 | 2024 |
| HQi | San Francisco, US | Beijing, CN |
| Employeesi | 100-200 | 51-200🏆 |
| Neuron scorei | 67🏆 | 62 |
| Total fundingi | $600M🏆 | $435M |
| Latest roundi | Series B · Nov 2025 | Series A extension · Apr 2026 |
| Valuationi | $5.6B🏆 | $1.4B |
| Cheapest paid plani | — | Pricing not disclosed |
| Free plani | ✗ | ✓ |
| Free triali | ✗ | ✓ |
| Top tier pricei | Enterprise / Partner · Contact sales | Pricing not disclosed |
| Pricing summaryi | 1 published plans | Free |
| Categoriesi |
Capability matrix
Developer-facing capabilities and access signals for Physical Intelligence and Spirit AI.
| Capability | Physical Intelligence | Spirit AI |
|---|---|---|
| MCP support | ✗ | ✗ |
| Public API | ✓ | ✗ |
| Webhooks | ✗ | ✗ |
| OAuth 2.0 | ✗ | ✗ |
| SDK languages | 1 (Python) | — |
| Free plan | ✗ | ✓ |
| Free trial | ✗ | ✓ |
| Verified | ✓ | ✗ |
| Active deal | ✗ | ✗ |
🟢 Strengths of Physical Intelligence
- Has raised more capital ($600M vs $435M)
- Higher Neuron score (67 vs 62)
- More mature (2023)
- Verified profile
🔵 Strengths of Spirit AI
- Offers a free plan
- Offers a free trial
- 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 Physical Intelligence if you want the most established option — it has raised $600M, 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
Physical Intelligence vs Spirit AI — which is better?
It depends on your priority. Physical Intelligence has raised more capital and is the more established option; Spirit AI has broader feature depth. See the side-by-side table above.
Is Physical Intelligence cheaper than Spirit AI?
No — Spirit AI's cheapest paid plan is Free, while Physical Intelligence's is Enterprise · Contact sales.
Do Physical Intelligence and Spirit AI offer free plans?
Physical Intelligence: Paid only. Spirit AI: Yes, has a free plan.
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