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NeuronFeed

Duckbill vs Ninja AI

Which Agents AI tool is better in 2026?

Duckbill

An AI-plus-human executive assistant that actually completes your personal to-do list

$33M

Ninja AI

Your all-in-one AI agent for boundless productivity, automating tasks and streamlining workflows across your digital life.

Undisclosed

Side-by-side

Verdict

Duckbill is the more established option (raised $33M); pricing is comparable on both sides.

Metric Duckbill Ninja AI
Taglinei An AI-plus-human executive assistant that actually completes your personal to-do list Your all-in-one AI agent for boundless productivity, automating tasks and streamlining workflows across your digital life.
Foundedi 2022🏆
HQi Boston, United States
Employeesi 1-10🏆
Neuron scorei 71🏆 19
Total fundingi $33M🏆 Undisclosed
Latest roundi Series A · Sep 2023
Valuationi
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 trial Free
Categoriesi

Capability matrix

Developer-facing capabilities and access signals for Duckbill and Ninja AI.

Capability Duckbill Ninja AI
MCP support
Public API
Webhooks
OAuth 2.0
SDK languages
Free plan
Free trial
Verified
Active deal

🟢 Strengths of Duckbill

  • Has raised more capital ($33M vs Undisclosed)
  • Higher Neuron score (71 vs 19)
  • Newer company (2022)

🔵 Strengths of Ninja AI

  • Offers a free plan

Which should you choose?

Choose Ninja AI if price matters most — it starts at Free, which is friendlier for teams watching burn. Both AI Agents tools ship core features, so the cost delta often decides it for small teams and solo operators.

Choose Duckbill if you want the most established option — it has raised $33M, 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

Duckbill vs Ninja AI — which is better?

It depends on your priority. Duckbill has raised more capital and is the more established option; Ninja AI has broader feature depth. See the side-by-side table above.

Is Duckbill cheaper than Ninja AI?

No — Ninja AI's cheapest paid plan is Free, while Duckbill's is Free trial.

Do Duckbill and Ninja AI offer free plans?

Duckbill: Free trial only. Ninja AI: Yes, has a free plan.

Contextual paths to related AI startups, deals and rankings.