AI SDK 6
Claude Opus 4.6 by default

Production-ready chatbot with Opus 4.6 out of the box. Switch models on the Vercel AI Gateway with zero config.

Open Chat
Capabilities
12 included
Features
Streaming
Multi-model
System Prompt
Structured Output
Sampling
Temperature0.7
Max Tokens4096
Top-p0.95
Top-k40
Freq. Penalty0
Pres. Penalty0
Zero-Config Providers
Anthropic
OpenAI
xAI
Google
Fireworks
AWS Bedrock
Output Format
MarkdownPlain TextJSONStructured
Stop Sequences
"\n\nHuman:"
"</s>"
Needs Integration
Chat persistenceSupabase / Neon
RAG / VectorsUpstash Search
Rate limitingUpstash Redis
File uploadsVercel Blob
Build It Yourself
Tool calling UIMulti-modal inputGuardrailsCode sandboxWeb searchContext trackingBranching

Everything you need to ship an AI chat app

From streaming to model switching, this starter covers the full stack so you can focus on your product.

Vercel AI Gateway

Zero-config access to OpenAI, Anthropic, Google, xAI, and more. No API key juggling.

Streaming Chat UI

Real-time streaming responses with useChat and DefaultChatTransport. Buttery smooth UX.

Agent Settings Panel

Model selector, temperature, system prompt, and max tokens. Fully configurable from the UI.

Mobile-First Design

Responsive layout with hamburger menu, full-screen mobile nav, and touch-optimized chat.

AI SDK 6 Patterns

Built on the latest AI SDK with streamText, convertToModelMessages, and UIMessage parts.

Hackable & Extensible

Clean component architecture. Add tools, persistence, auth, or any integration in minutes.

Built on proven foundations

Modern stack, minimal footprint, maximum flexibility.

Next.js 16
AI SDK 6
Vercel AI Gateway
React 19
TypeScript
Tailwind CSS
shadcn/ui
Streaming
App Router