RasavsVercel AI Gateway

Full side-by-side comparison — features, pricing, platforms, and which one wins in 2026.

Rasa

Chatbot Builders

Open-source framework for building conversational AI

Full review →Website ↗

Vercel AI Gateway

LLM APIs & Inference

Unified API gateway for routing app calls across hundreds of AI models

Full review →Website ↗
FeatureRasaVercel AI Gateway
CategoryChatbot BuildersLLM APIs & Inference
PricingFree (open-source) + EnterpriseFree monthly credits; pay-as-you-go at provider list price with no markup
GitHub Stars
✓ More stars
19k
—
PlatformsLinux, macOS, DockerWeb, API
Key Features
  • ✓ NLU
  • ✓ Dialogue management
  • ✓ Custom actions
  • ✓ Multi-channel
  • ✓ On-premise
  • ✓ Single API key
  • ✓ Hundreds of models
  • ✓ Unified model API
  • ✓ Provider routing and fallbacks
  • ✓ Automatic retries
  • ✓ Usage and spend monitoring
  • ✓ Bring Your Own Key
  • ✓ AI SDK and OpenAI-compatible APIs
Pros
  • + Full control and customization
  • + On-premise deployment
  • + Production-grade reliability
  • + Strong NLU engine
  • + Open-source core
  • + One endpoint for many model providers
  • + Centralized usage, spend, and observability
  • + Automatic retries and fallbacks improve production resilience
  • + No token markup according to Vercel docs
  • + Works with AI SDK and OpenAI-compatible API clients
Cons
  • − Steep learning curve
  • − Requires ML knowledge
  • − Resource intensive
  • − Enterprise features are paid
  • − Best fit for teams already building web apps or using Vercel/AI SDK
  • − Underlying provider terms and model limits still apply
  • − BYOK fallback can still consume AI Gateway credits
  • − Exact model pricing should be checked in the current Gateway model list
Tags
conversationalnlpopen-sourceenterprise
ai-gatewaymodel-routingvercelai-sdkllm-apibyokobservability

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