Service tiers now available on AI Gateway
Vercel's AI Gateway now lets you pick your price-speed tradeoff. Priority tier costs 1.8-2x more. Flex tier cuts costs in half.

Why it matters
Vercel democratizes compute tier selection for AI inference, letting builders optimize for latency vs. cost per request across OpenAI and Gemini without provider lock-in. This shifts economics for cost-sensitive production deployments.
The key facts
6 to knowService tiering live on AI Gateway for OpenAI and Gemini models
Three tiers: default (baseline), priority (~1.8-2x cost, faster), flex (~0.5x cost, higher latency)
Works across Chat Completions, Anthropic Messages, OpenAI Responses APIs
Billing adjusts per-request based on actual tier applied; fallback to default tier at default rate
Tier selection via serviceTier under providerOptions.gateway, unified across all supported providers
Applied tier returned in provider metadata for request-level confirmation
Go to the source
Vercel Blogvercel.com
Publisher excerpt: AI Gateway now supports service tiering. Service tiers let you optimize for latency, throughput, and cost per request to match your use case. Pick a faster tier for interactive workloads (less queueing, higher token throughput), or a lower cost tier for background jobs that can tolerate more…