Comparison · Coding
Bolt vs Kiro: which AI agent is better?
A side-by-side look at Bolt and Kiro on quality, price, capabilities and trust. Scores measure observable public data; prices come from each vendor's own pricing page. Every fact is sourced and dated.
| Bolt StackBlitz | Kiro Amazon Web Services | |
|---|---|---|
| Agent Score | 48 | 44 |
| Entry price | $25/mo · free plan | $20/mo · free plan |
| Trust | ✓ VERIFIED | ✓ VERIFIED |
| Capabilities documented | 6 | 3 |
| Free plan | ✓ Yes | ✓ Yes |
| Free trial | — | — |
| Public API | — | — |
| MCP support | — | — |
| Open source | No | No |
| Last verified | 13 Oct 2026 | 13 Oct 2026 |
Score breakdown
| Component | Bolt | Kiro |
|---|---|---|
| Capabilities | 50 | 38 |
| Integrations | Not measured | Not measured |
| Documentation | Not measured | Not measured |
| Pricing clarity | 100 | 100 |
| Transparency | 100 | 100 |
| Freshness | 100 | 100 |
| Human oversight | Not measured | Not measured |
Choose Bolt if…
- You want a higher Agent Score (48 vs 44).
- You want more documented capabilities (6 vs 3).
Choose Kiro if…
On the measured criteria, Bolt leads — see opposite.
See the full picture: Bolt · Kiro · more Coding agents · all comparisons.