Aaru vs Tetsuwan Scientific
Which Research Assistants AI tool is better in 2026?
Aaru
AI that simulates entire populations to predict the world's events
Tetsuwan Scientific
Robotic AI scientists that run laboratory experiments autonomously
Side-by-side
Aaru is the more established option (raised $50M); pricing is comparable on both sides.
| Metric | Aaru | Tetsuwan Scientific |
|---|---|---|
| Taglinei | AI that simulates entire populations to predict the world's events | Robotic AI scientists that run laboratory experiments autonomously |
| Foundedi | 2024 | 2023🏆 |
| HQi | New York, United States | San Francisco, United States |
| Employeesi | — | 1-10🏆 |
| Neuron scorei | 72🏆 | 64 |
| Total fundingi | $50M🏆 | $2.7M |
| Latest roundi | Series A · Dec 2025 | Pre-Seed · Nov 2024 |
| Valuationi | $1B🏆 | — |
| 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 subscription (contact sales) | Enterprise · Contact sales |
| Categoriesi |
Capability matrix
Developer-facing capabilities and access signals for Aaru and Tetsuwan Scientific.
| Capability | Aaru | Tetsuwan Scientific |
|---|---|---|
| MCP support | ✗ | ✗ |
| Public API | ✓ | ✗ |
| Webhooks | ✗ | ✗ |
| OAuth 2.0 | ✗ | ✗ |
| SDK languages | — | — |
| Free plan | ✗ | ✗ |
| Free trial | ✗ | ✗ |
| Verified | ✗ | ✗ |
| Active deal | ✗ | ✗ |
🟢 Strengths of Aaru
- Has raised more capital ($50M vs $2.7M)
- Higher Neuron score (72 vs 64)
- Newer company (2024)
🔵 Strengths of Tetsuwan Scientific
- More mature (2023)
Which should you choose?
Choose Tetsuwan Scientific if price matters most — it starts at Enterprise · Contact sales, which is friendlier for teams watching burn. Both Research Assistants tools ship core features, so the cost delta often decides it for small teams and solo operators.
Choose Aaru if you want the most established option — it has raised $50M, 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
Aaru vs Tetsuwan Scientific — which is better?
It depends on your priority. Aaru has raised more capital and is the more established option; Tetsuwan Scientific has broader feature depth. See the side-by-side table above.
Is Aaru cheaper than Tetsuwan Scientific?
No — Tetsuwan Scientific's cheapest paid plan is Enterprise · Contact sales, while Aaru's is Enterprise subscription (contact sales).
Do Aaru and Tetsuwan Scientific offer free plans?
Aaru: Paid only. Tetsuwan Scientific: Paid only.
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