Comparison
Vercel's AI Gateway is a convenience layer for the Vercel AI SDK — unified provider auth, basic failover, and simple proxying. NeuralRouting is a provider-agnostic intelligent router that classifies prompts and picks the cheapest capable model automatically. They overlap on the proxy surface and diverge on everything else.
TL;DR — 5 dimensions
| Dimension | NeuralRouting | Vercel AI Gateway |
|---|---|---|
| Primary job | Cut LLM cost per request | Unify provider auth + failover |
| Routing intelligence | Automatic, per-prompt | Manual model choice |
| Cost reduction | 60–85% out of the box | Minimal (routing not cost-aware) |
| Platform coupling | Any runtime, any cloud | Tied to Vercel + AI SDK DX |
| SDK surface | OpenAI SDK compatible | Vercel AI SDK native |
| Feature | NeuralRouting | Vercel AI Gateway |
|---|---|---|
| Intelligent per-query routing | Automatic classification + routing | Pick provider per request |
| Model Cascading | Cheap → mid → premium escalation | Not available |
| Semantic caching | Meaning-based dedup, all tiers | Not core offering |
| Quality validation (Shadow) | Every economy response validated | Not available |
| Prompt security / guardrails | Built-in shield, all tiers | Not core offering |
| Multi-provider failover | Automatic | Configurable |
| Unified billing (one invoice) | BYOK per provider | Single Vercel invoice |
| Runs anywhere (any host) | Any cloud, any runtime | Best on Vercel infra |
| OpenAI SDK compatible | Vercel AI SDK–first | |
| Free tier | 5K credits | Included in Vercel plan |
| Starter price | $29/mo | Usage + Vercel plan |
NeuralRouting is built to minimize cost per correct output — classification, cascading, caching. The Vercel AI Gateway is cost-neutral: it passes your prompt to the model you specified, nothing more.
NeuralRouting runs anywhere. The Vercel AI Gateway's sweet spot is Vercel-hosted apps using the AI SDK — great DX there, more friction elsewhere.
Vercel's pitch is one invoice for everything. NeuralRouting keeps you on BYOK per provider so you retain your credits, discounts, and negotiated rates.
Honest take: if you're shipping a weekend Vercel app, their gateway is the fastest path. If you're running production traffic and your bill is meaningful, cost routing isn't optional.
See NeuralRouting pricing. Free tier, no credit card, OpenAI SDK compatible.
See pricing