b4run vs sandbase-harness
sandbase-harness ranks higher on current evidence: 1356 commits by 9 contributors in the last 90 days (472 in the last 30).
| sandbase-harness | b4run | |
|---|---|---|
| Grade | A | A |
| Verdict | ActiveCurrent deps | ActiveCurrent deps |
| Category rank | #1 | #2 |
| Model | Free | Free |
| Commits, 90 days | 1356 | 1347 |
| Contributors, 90 days | 9 | 4 |
| Last activity | Oct 12, 2026 | Oct 18, 2026 |
| Listed price | Free | Free |
| Evidence source | Code | Code |
| Latest release | v0.3.8 | v0.14.0 |
| License | Apache-2.0 | MIT |
| React | 19.3.0 ✓ | 19.2.8 ✓ |
| Tailwind CSS | 4.3.3 ✓ | 4.3.3 ✓ |
| TypeScript | 7.0.2 ✓ | 7.0.2 ✓ |
| Vercel AI SDK | 7.0.128 ✓ | — |
| Zod | 4.6.5 ✓ | 4.4.3 ✓ |
| Next.js | — | 16.3.6 ✓ |
| Framework | Vite | Next.js |
| UI | Tailwind CSS | Tailwind CSS |
| AI | Vercel AI SDK, Anthropic SDK | LangChain |
| API layer | Hono | Hono |
| Testing | Vitest, Playwright | Vitest, Playwright |
| i18n | i18next | — |
| Database / ORM | — | Neon, node-postgres |
Evidence checked . ✓ = on the latest major version. "Claimed" = a version the vendor's public pages mention, not verified code. Evidence as of Oct 19, 2026. Rankings never depend on affiliate or paid status. Method.