Chainguard vs Sublime Security
Which for Cyber Defense AI tool is better in 2026?
Chainguard
Secure, minimal container images for software and AI supply chains
Sublime Security
Autonomous email defense for the post-LLM threat era
Side-by-side
Chainguard is the more established option (raised $256M), but Sublime Security is cheaper to start.
| Metric | Chainguard | Sublime Security |
|---|---|---|
| Taglinei | Secure, minimal container images for software and AI supply chains | Autonomous email defense for the post-LLM threat era |
| Foundedi | 2021 | 2020🏆 |
| HQi | Kirkland, United States | Washington, US |
| Employeesi | — | 101-250🏆 |
| Neuron scorei | 75🏆 | 52 |
| Total fundingi | $256M🏆 | $244M |
| Latest roundi | Series C · Jul 2024 | Series C · Oct 2025 |
| Valuationi | $1.1B🏆 | — |
| Cheapest paid plani | Pricing not disclosed | —🏆 |
| Free plani | ✓ | ✗ |
| Free triali | ✓ | ✗ |
| Top tier pricei | Pricing not disclosed | Enterprise · Contact sales |
| Pricing summaryi | Free | 1 published plans |
| Categoriesi |
Capability matrix
Developer-facing capabilities and access signals for Chainguard and Sublime Security.
| Capability | Chainguard | Sublime Security |
|---|---|---|
| MCP support | ✗ | ✗ |
| Public API | ✓ | ✓ |
| Webhooks | ✗ | ✓ |
| OAuth 2.0 | ✓ | ✓ |
| SDK languages | — | 2 (python, go) |
| Free plan | ✓ | ✗ |
| Free trial | ✓ | ✗ |
| Verified | ✗ | ✗ |
| Active deal | ✗ | ✗ |
🟢 Strengths of Chainguard
- Has raised more capital ($256M vs $244M)
- Higher Neuron score (75 vs 52)
- Offers a free plan
- Offers a free trial
🔵 Strengths of Sublime Security
- More mature (2020)
Which should you choose?
Choose Sublime Security if price matters most — it starts at Freemium, which is friendlier for teams watching burn. Both AI for Cyber Defense tools ship core features, so the cost delta often decides it for small teams and solo operators.
Choose Chainguard if you want the most established option — it has raised $256M, 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
Chainguard vs Sublime Security — which is better?
It depends on your priority. Chainguard has raised more capital and is the more established option; Sublime Security is cheaper to start. See the side-by-side table above.
Is Chainguard cheaper than Sublime Security?
No — Sublime Security's cheapest paid plan is Freemium, while Chainguard's is Free.
Do Chainguard and Sublime Security offer free plans?
Chainguard: Yes, has a free plan. Sublime Security: Paid only.
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