Applied AI Systems Lab

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Open-source AI playground for developers, showcasing production-grade patterns for safe, cost-aware multi-model orchestration, observability, and experiments like Model Arena and Lottery Probability Lab.

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Available Demos

Built-in Features

AI Integration

Single orchestrator for OpenAI, Anthropic, Gemini, Groq with automatic retry and BYOK support.

Smart Caching

SHA-256 hashed inputs with TTL-based caching to save costs and reduce latency.

Cost & Budget Control

Real-time token estimation, per-request cost caps, and daily budget limits for shared API keys.

Observability

Structured logging and metrics for every AI interaction.

Type Safety

End-to-end TypeScript + Zod validation for inputs and outputs.

Extensibility

Modular experiment system (Model Arena, Lottery Lab, CoT, Robustness, etc.) without touching core logic.

Technology Stack

Frontend & Framework

  • • Next.js 16 (App Router)
  • • React with TypeScript
  • • Tailwind CSS 3
  • • shadcn/ui Components

Backend & AI

  • • Vercel AI SDK
  • • Zod for validation
  • • OpenAI, Anthropic, Groq, Gemini
  • • In-memory caching, Redis-ready rate limit & budget control