Nullify vs Sourcery
Which Code Review AI tool is better in 2026?
Nullify
Offers an autonomous AI workforce for product security that scans code, triages
Sourcery
AI code reviews, security scanning, and team analytics for every pull request
Side-by-side
Nullify is the more established option (raised $12.5M); pricing is comparable on both sides.
| Metric | Nullify | Sourcery |
|---|---|---|
| Taglinei | Offers an autonomous AI workforce for product security that scans code, triages | AI code reviews, security scanning, and team analytics for every pull request |
| Foundedi | 2022 | 2018🏆 |
| HQi | — | London, United Kingdom |
| Employeesi | 11-50🏆 | — |
| Neuron scorei | 49 | 67🏆 |
| Total fundingi | $12.5M🏆 | $1.9M |
| Latest roundi | Seed | Seed · Jan 2022 |
| 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 | Free |
| Categoriesi |
Capability matrix
Developer-facing capabilities and access signals for Nullify and Sourcery.
| Capability | Nullify | Sourcery |
|---|---|---|
| MCP support | ✗ | ✗ |
| Public API | ✗ | ✗ |
| Webhooks | ✗ | ✓ |
| OAuth 2.0 | ✗ | ✓ |
| SDK languages | — | — |
| Free plan | ✓ | ✓ |
| Free trial | ✓ | ✓ |
| Verified | ✗ | ✗ |
| Active deal | ✗ | ✗ |
🟢 Strengths of Nullify
- Has raised more capital ($12.5M vs $1.9M)
- Newer company (2022)
🔵 Strengths of Sourcery
- Higher Neuron score (67 vs 49)
- More mature (2018)
Which should you choose?
Choose Sourcery if price matters most — it starts at Free, which is friendlier for teams watching burn. Both AI Code Review tools ship core features, so the cost delta often decides it for small teams and solo operators.
Choose Nullify if you want the most established option — it has raised $12.5M, 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
Nullify vs Sourcery — which is better?
It depends on your priority. Nullify has raised more capital and is the more established option; Sourcery has broader feature depth. See the side-by-side table above.
Is Nullify cheaper than Sourcery?
No — Sourcery's cheapest paid plan is Free, while Nullify's is Free.
Do Nullify and Sourcery offer free plans?
Nullify: Yes, has a free plan. Sourcery: Yes, has a free plan.
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