Atlan vs Sifflet
Which Data Engineering AI tool is better in 2026?
Atlan
Sifflet
AI-ready data observability platform to monitor pipelines, quality, and lineage end to end
Side-by-side
Atlan is the more established option (raised $206M); pricing is comparable on both sides.
| Metric | Atlan | Sifflet |
|---|---|---|
| Taglinei | — | AI-ready data observability platform to monitor pipelines, quality, and lineage end to end |
| Foundedi | 2019🏆 | 2021 |
| HQi | — | Paris, FR |
| Employeesi | 11-50 | 51-200🏆 |
| Neuron scorei | 75🏆 | 65 |
| Total fundingi | $206M🏆 | $35.8M |
| Latest roundi | Series B | Series A · Mar 2023 |
| Valuationi | $750M🏆 | — |
| 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 | Free trial |
| Categoriesi |
Capability matrix
Developer-facing capabilities and access signals for Atlan and Sifflet.
| Capability | Atlan | Sifflet |
|---|---|---|
| MCP support | ✗ | ✗ |
| Public API | ✗ | ✓ |
| Webhooks | ✗ | ✗ |
| OAuth 2.0 | ✗ | ✗ |
| SDK languages | — | — |
| Free plan | ✓ | ✗ |
| Free trial | ✓ | ✓ |
| Verified | ✗ | ✗ |
| Active deal | ✗ | ✗ |
🟢 Strengths of Atlan
- Has raised more capital ($206M vs $35.8M)
- Higher Neuron score (75 vs 65)
- Offers a free plan
- More mature (2019)
🔵 Strengths of Sifflet
- Newer company (2021)
Which should you choose?
Choose Sifflet if price matters most — it starts at Free trial, which is friendlier for teams watching burn. Both AI Data Engineering tools ship core features, so the cost delta often decides it for small teams and solo operators.
Choose Atlan if you want the most established option — it has raised $206M, 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
Atlan vs Sifflet — which is better?
It depends on your priority. Atlan has raised more capital and is the more established option; Sifflet has broader feature depth. See the side-by-side table above.
Is Atlan cheaper than Sifflet?
No — Sifflet's cheapest paid plan is Free trial, while Atlan's is Free.
Do Atlan and Sifflet offer free plans?
Atlan: Yes, has a free plan. Sifflet: Free trial only.
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