An independent, evidence-weighted trust comparison of two agent frameworks — ranked on verifiable signals, not popularity.
| Signal | PydanticAI | Vercel AI SDK |
|---|---|---|
| HVTrust score | 90.7 | 90.5 |
| Evidence grade | B | B |
| Safety / Integrity (30) | 24.6 | 24.3 |
| Transparency (20) | 16.4 | 16.2 |
| Maintenance (20) | 20.0 | 20.0 |
| Adoption (10) | 9.7 | 10.0 |
| GitHub stars | 17.4k | 24.5k |
| Weekly downloads | 9,496,810 | 12,944,419 |
| Last push | 2026-05-30 | 2026-05-30 |
| Language | Python | TypeScript |
| OSSF Scorecard | 6.4 | 6.2 |