Perspective vs Velobase Harness
Perspective ranks higher on current evidence: 6 commits by 2 contributors in the last 90 days (6 in the last 30).
| Perspective | Velobase Harness | |
|---|---|---|
| Grade | B | C |
| Verdict | Active1 major behind | Active2+ majors behind |
| Category rank | #9 | #19 |
| Model | Free | Free |
| Commits, 90 days | 6 | 26 |
| Contributors, 90 days | 2 | 8 |
| Last activity | Oct 13, 2026 | Oct 15, 2026 |
| Listed price | Free | Free |
| Evidence source | Code | Code |
| Latest release | — | v0.2.0 |
| License | MIT | MIT |
| TypeScript | 5.0.0 (latest 7.0.2) | 5.8.2 (latest 7.0.2) |
| FastAPI | 0.115.12 (latest 0.146.0) | — |
| LangChain | 0.3.25 (latest 1.4.6) | — |
| LangGraph | 0.4.8 (latest 1.2.16) | — |
| Next.js | 15.2.4 (latest 16.4.2) | 15.5.25 (latest 16.4.2) |
| Tailwind CSS | 3.4.17 (latest 4.3.3) | 4.0.15 ✓ |
| Zod | 3.24.1 (latest 4.6.7) | 3.0.0 (latest 4.6.7) |
| React | 19.0.0 ✓ | 19.0.0 ✓ |
| Stripe SDK | — | 19.1.0 (latest 23.0.0) |
| Vercel AI SDK | — | 5.0.68 (latest 7.0.143) |
| Expo | — | 57.0.29 (latest 58.0.14) |
| Express | — | 4.22.2 (latest 5.3.0) |
| Prisma | — | 6.5.0 (latest 7.10.1) |
| React Native | — | 0.86.3 (latest 0.88.0) |
| Auth.js | — | 5.0.0-beta.32 ✓ |
| tRPC | — | 11.18.0 ✓ |
| Framework | Next.js, FastAPI | Next.js, Expo, Express, React Native |
| UI | Tailwind CSS, Radix UI | Tailwind CSS, Radix UI |
| AI | LangChain, LangGraph | Vercel AI SDK, OpenAI SDK |
| API layer | Uvicorn | tRPC, TanStack Query, Hono |
| i18n | next-intl | next-intl |
| Auth | — | Auth.js |
| Payments | — | Stripe |
| Database / ORM | — | Prisma |
| — | Resend, Nodemailer, React Email, SendGrid | |
| Monitoring | — | PostHog |
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.