Pyyan / Compare / Arize AI vs OpenRouter vs Requesty vs Portkey
Arize AI vs OpenRouter vs Requesty vs Portkey
4 of 5Routers & Gateways · verified 13 Aug 2026
| Specification | Arize AI | OpenRouter | Requesty | Portkey |
|---|---|---|---|---|
| Summary | ML-grade rigour on the routing layer. | Biggest catalogue, simplest start. | Lowest measured overhead. | Routing plus guardrails and compliance. |
| Added latency | Low | 40–55ms | 8ms P50 | 8–20ms |
| Hosting | Managed | Managed | Managed | Both |
| Caching | — | — | — | Semantic |
| Category | Routers & Gateways | Routers & Gateways | Routers & Gateways | Routers & Gateways |
| Official | Arize ↗ | 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.