CuspAI vs Spiritus
Which Climate AI tool is better in 2026?
CuspAI
AI foundation models that act as a search engine for new materials.
Spiritus
Carbon removal company developing low-cost direct air capture (DAC) technology to pull carbon
Side-by-side
CuspAI is the more established option (raised $100M); pricing is comparable on both sides.
| Metric | CuspAI | Spiritus |
|---|---|---|
| Taglinei | AI foundation models that act as a search engine for new materials. | Carbon removal company developing low-cost direct air capture (DAC) technology to pull carbon |
| Foundedi | 2024 | 2022🏆 |
| HQi | Cambridge, GB | — |
| Employeesi | 11-50 | 11-50🏆 |
| Neuron scorei | 59🏆 | 50 |
| Total fundingi | $100M🏆 | $30M |
| Latest roundi | Series A · Sep 2025 | Series A |
| Valuationi | $520M🏆 | — |
| Cheapest paid plani | Pricing not disclosed | Pricing not disclosed |
| Free plani | ✗ | ✓ |
| Free triali | ✗ | ✓ |
| Top tier pricei | Pricing not disclosed | Pricing not disclosed |
| Pricing summaryi | Enterprise · Contact sales | Free |
| Categoriesi |
Capability matrix
Developer-facing capabilities and access signals for CuspAI and Spiritus.
| Capability | CuspAI | Spiritus |
|---|---|---|
| MCP support | ✗ | ✗ |
| Public API | ✗ | ✗ |
| Webhooks | ✗ | ✗ |
| OAuth 2.0 | ✗ | ✗ |
| SDK languages | — | — |
| Free plan | ✗ | ✓ |
| Free trial | ✗ | ✓ |
| Verified | ✗ | ✗ |
| Active deal | ✗ | ✗ |
🟢 Strengths of CuspAI
- Has raised more capital ($100M vs $30M)
- Higher Neuron score (59 vs 50)
- Newer company (2024)
🔵 Strengths of Spiritus
- Offers a free plan
- Offers a free trial
- More mature (2022)
Which should you choose?
Choose Spiritus if price matters most — it starts at Free, which is friendlier for teams watching burn. Both AI Climate tools ship core features, so the cost delta often decides it for small teams and solo operators.
Choose CuspAI if you want the most established option — it has raised $100M, 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
CuspAI vs Spiritus — which is better?
It depends on your priority. CuspAI has raised more capital and is the more established option; Spiritus has broader feature depth. See the side-by-side table above.
Is CuspAI cheaper than Spiritus?
No — Spiritus's cheapest paid plan is Free, while CuspAI's is Enterprise · Contact sales.
Do CuspAI and Spiritus offer free plans?
CuspAI: Paid only. Spiritus: Yes, has a free plan.
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