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Introducing Respan Router

Kong AI Gateway vs Vercel AI Gateway (2026)

Updated March 10, 2026

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Overview

Rating
10.0 / 10
Rating
10.0 / 10
Best For
Enterprises using Kong who want to extend their API gateway with AI capabilities
Best For
Developers who want managed multi-provider model access and spend controls, especially teams already on Vercel or the AI SDK
Product Summary

Kong AI Gateway extends the popular Kong API gateway with AI-specific capabilities including multi-LLM routing, prompt engineering, semantic caching, rate limiting, and cost management.

Product Summary

Vercel AI Gateway routes hundreds of models through one API key with zero token markup. Compare its pricing, features, pros and cons, and alternatives.

Starting Price
$0Per month
Starting Price
$5
Free Trial
Yes
Free Trial
Yes
Free Version
Yes
Free Version
No
Website
Website

Key features

Core capabilities each platform advertises.

Kong AI GatewayKong AI Gateway
  • AI traffic management
  • Multi-LLM load balancing
  • Request/response transformation
  • Authentication and authorization
  • Plugin ecosystem
Vercel AI GatewayVercel AI Gateway
  • One API key for hundreds of models
  • Provider and model fallbacks
  • Request logs and spend dashboards
  • Budgets by team, project, API key, or member

Strengths and tradeoffs

What each tool does well, and the limitations to keep in mind.

Kong AI GatewayKong AI Gateway

Pros

  • Developer-friendly platform
  • Production-ready
  • Good performance
  • Active development

Cons

  • Enterprise pricing varies
  • Setup complexity
  • Learning curve
Vercel AI GatewayVercel AI Gateway

Pros

  • No markup on tokens, including with BYOK
  • Callable from any infrastructure, not only Vercel deployments
  • Ordered provider and model fallbacks

Cons

  • No output evaluation or quality scoring
  • Free tier limited to a subset of models with lower rate limits
  • Budgets don't cover BYOK spend, and failed BYOK requests fall back to billed system credentials
  • Team-wide ZDR, custom reporting, and trace drains are paid add-ons

Kong AI or Vercel AI — which should you choose?

Choose Kong AI if you want

  • Enterprise AI API management
  • Load balancing across LLM providers
  • AI traffic governance and security
  • Multi-tenant AI access control
  • API lifecycle management for AI

Choose Vercel AI if you want

  • Multi-provider model access for AI SDK apps
  • Provider failover for production agents
  • Capping AI spend by project or API key
  • Routing coding agent spend through one account

Compare Kong AI Gateway and Vercel AI Gateway on your own traffic

10KFree traces/mo
1,000+Models
5 minSetup

Respan lets you trace LLM and agent calls across any model or framework, A/B test prompts on production traffic, and route requests across 1,000+ models through one gateway.

Try Respan free

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