AI gateway comparison

Phaseo vs Vercel AI Gateway

Compare Phaseo with Vercel's gateway for unified model access, routing, billing, and usage visibility.

Where Phaseo stands out

Phaseo is built around an open model-intelligence layer that connects research, provider routes, pricing, operational signals, and gateway usage.

Where Vercel AI Gateway stands out

Vercel AI Gateway integrates closely with Vercel projects and the AI SDK, and currently documents zero token markup including BYOK.

Capability comparison

Capability

Phaseo

Vercel AI Gateway

Primary product shape

Model database, gateway, and observability platform

Managed gateway integrated with the Vercel platform

Framework compatibility

OpenAI-compatible API and Phaseo SDKs

AI SDK, OpenAI Chat Completions, Responses, and Anthropic Messages

Routing

Provider policies, fallbacks, presets, and compatibility-aware routes

Dynamic provider selection, load balancing, retries, and fallbacks

BYOK

Workspace provider keys with routing controls

Provider credentials with BYOK-first fallback behaviour

Pricing model

Pay as you go with an explicit credit-purchase fee

Provider list rates with zero token markup

Model research

Public lifecycle, pricing, availability, benchmark, and provider intelligence

Public model list plus gateway pricing and provider variations

Which should you choose?

Choose Vercel AI Gateway when your stack is already centred on Vercel and the AI SDK. Choose Phaseo when you want an infrastructure-independent, open-source gateway joined to a deeper public model database.

Official competitor sources

Last reviewed 12 August 2026. Product features and pricing can change; verify purchasing decisions with each provider.