JetBrains AI Assistant vs Kiro
Which Agents AI tool is better in 2026?
JetBrains AI Assistant
AI inside IntelliJ, PyCharm, WebStorm — code without leaving your JetBrains IDE
Kiro
Amazon's spec-driven AI IDE — build with PRDs, not prompts
Side-by-side
Kiro is cheaper to start; funding signals are comparable on both sides.
| Metric | JetBrains AI Assistant | Kiro |
|---|---|---|
| Taglinei | AI inside IntelliJ, PyCharm, WebStorm — code without leaving your JetBrains IDE | Amazon's spec-driven AI IDE — build with PRDs, not prompts |
| Foundedi | 2024🏆 | 2025 |
| HQi | Prague, CZ | Seattle, US |
| Employeesi | 5000+🏆 | 201-500 |
| Neuron scorei | 53🏆 | 47 |
| Total fundingi | Undisclosed | Undisclosed |
| Latest roundi | Corporate · Jan 2024 | Corporate · Jul 2025 |
| Valuationi | — | — |
| Cheapest paid plani | JetBrains AI Assistant (Annual) · $8/mo | Pricing not disclosed🏆 |
| Free plani | ✗ | ✗ |
| Free triali | ✓ | ✗ |
| Top tier pricei | JetBrains AI Assistant · $10/mo | Pricing not disclosed |
| Pricing summaryi | 3 published plans | Freemium |
| Categoriesi |
Capability matrix
Developer-facing capabilities and access signals for JetBrains AI Assistant and Kiro.
| Capability | JetBrains AI Assistant | Kiro |
|---|---|---|
| MCP support | ✗ | ✗ |
| Public API | ✗ | ✗ |
| Webhooks | ✗ | ✗ |
| OAuth 2.0 | ✗ | ✗ |
| SDK languages | 2 (Kotlin, Java) | — |
| Free plan | ✗ | ✗ |
| Free trial | ✓ | ✗ |
| Verified | ✗ | ✗ |
| Active deal | ✗ | ✗ |
🟢 Strengths of JetBrains AI Assistant
- Higher Neuron score (53 vs 47)
- Offers a free trial
- More mature (2024)
🔵 Strengths of Kiro
- Newer company (2025)
Which should you choose?
Choose Kiro if price matters most — it starts at Freemium, 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 Kiro if you want the most established option — it has raised Undisclosed, 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
JetBrains AI Assistant vs Kiro — which is better?
It depends on your priority. JetBrains AI Assistant is the leaner option; Kiro is cheaper to start. See the side-by-side table above.
Is JetBrains AI Assistant cheaper than Kiro?
No — Kiro's cheapest paid plan is Freemium, while JetBrains AI Assistant's is JetBrains AI Assistant (Annual) · $8/mo.
Do JetBrains AI Assistant and Kiro offer free plans?
JetBrains AI Assistant: Free trial only. Kiro: Paid only.
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