Builder.io vs Stellon Labs
Which Design AI tool is better in 2026?
Builder.io
Visual AI platform: design-to-code, AI app building and an agentic CMS
Stellon Labs
Building tiny frontier AI models that run on edge devices
Side-by-side
Builder.io is the more established option (raised $62M); pricing is comparable on both sides.
| Metric | Builder.io | Stellon Labs |
|---|---|---|
| Taglinei | Visual AI platform: design-to-code, AI app building and an agentic CMS | Building tiny frontier AI models that run on edge devices |
| Foundedi | 2018🏆 | 2025 |
| HQi | San Francisco, United States | San Francisco, US |
| Employeesi | — | 1-10🏆 |
| Neuron scorei | 72🏆 | 52 |
| Total fundingi | $62M🏆 | $1M |
| Latest roundi | Series B | Seed · Jan 2025 |
| 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 | Pricing not listed |
| Categoriesi |
Capability matrix
Developer-facing capabilities and access signals for Builder.io and Stellon Labs.
| Capability | Builder.io | Stellon Labs |
|---|---|---|
| MCP support | ✓ | ✗ |
| Public API | ✓ | ✗ |
| Webhooks | ✓ | ✗ |
| OAuth 2.0 | ✓ | ✗ |
| SDK languages | 5 (JavaScript/TypeScript, React, Vue, Angular…) | — |
| Free plan | ✓ | ✗ |
| Free trial | ✓ | ✗ |
| Verified | ✗ | ✗ |
| Active deal | ✗ | ✗ |
🟢 Strengths of Builder.io
- Has raised more capital ($62M vs $1M)
- Higher Neuron score (72 vs 52)
- Offers a free plan
- Offers a free trial
🔵 Strengths of Stellon Labs
- Newer company (2025)
Which should you choose?
Choose Stellon Labs if price matters most — it starts at Pricing not listed, which is friendlier for teams watching burn. Both AI Design tools ship core features, so the cost delta often decides it for small teams and solo operators.
Choose Builder.io if you want the most established option — it has raised $62M, 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
Builder.io vs Stellon Labs — which is better?
It depends on your priority. Builder.io has raised more capital and is the more established option; Stellon Labs has broader feature depth. See the side-by-side table above.
Is Builder.io cheaper than Stellon Labs?
No — Stellon Labs's cheapest paid plan is Pricing not listed, while Builder.io's is Free.
Do Builder.io and Stellon Labs offer free plans?
Builder.io: Yes, has a free plan. Stellon Labs: Paid only.
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