Pyyan / Compare / Vercel AI SDK vs OpenRouter vs Requesty vs Portkey
Vercel AI SDK vs OpenRouter vs Requesty vs Portkey
4 of 5Routers & Gateways · verified 13 Aug 2026
×OpenRouterOpenRoutercurrent
| Specification | Vercel AI SDK | OpenRouter | Requesty | Portkey |
|---|---|---|---|---|
| Summary | TypeScript-native provider abstraction. | Biggest catalogue, simplest start. | Lowest measured overhead. | Routing plus guardrails and compliance. |
| Added latency | None | 40–55ms | 8ms P50 | 8–20ms |
| Hosting | Library | Managed | Managed | Both |
| Caching | — | — | — | Semantic |
| Category | Routers & Gateways | Routers & Gateways | Routers & Gateways | Routers & Gateways |
| Official | Vercel ↗ | OpenRouter ↗ | Requesty ↗ | Portkey ↗ |
Highlighted rows are where these differ.
OpenRouter
- Consolidated billing across every provider
- 40–55ms overhead — 5× the alternatives
Best for prototyping.
Portkey
- Best caching implementation
- Prompt management and audit trail
Best for regulated teams.