Features
5-10x faster inference via native vLLM integration with auto multi-GPU and PagedAttention
Grounded citations: response.sources/.citations filled from retrieved URLs
Reasoning model support: gpt-5, o-series complete with cost/token/latency reporting
One-call domain agent creation: LegalDomain().to_agent()
Custom personas enforced on every execution path
Fail-closed agent.run(): never returns success with empty output
Self-updating model catalog with drift warnings
Sandboxed built-in tools with SSRF guard and path-confined file tools
Policy-based ModelRouter: FirstAvailable, CostBased, LatencyBased with transparent failover
Automatic task decomposition and sub-agent routing (AgentMode.AUTO)
Multi-agent orchestration with team patterns, shared state, and message bus
14 inference backends: 5 local engines + 9 cloud providers (OpenAI, Anthropic, Gemini, Cerebras, Groq, Together,
Unified ProviderRegistry with list_providers()/list_models() and API readiness checks
66+ built-in tools covering computation, code execution, web search, documents, media, and more
9 agent presets: math, research, coding, general, rag, media, notify, multimodal, minimal
AI-powered code generation from natural language
One-click deployment to Replit hosting
Real-time collaborative editing
Agent 4 with faster, more versatile AI
Voice Mode for hands-free development
Custom Instructions and reusable Skills
Package Firewall to block malicious dependencies
Built-in database support (PostgreSQL, SQLite)
Integrated cloud IDE with terminal
Automatic dependency management
Version control with Git integration
Multi-language support (Python, JavaScript, TypeScript, etc.)
Context-aware code suggestions
Direct integration with Claude and Databricks
One-click MCP servers (Apollo, Black Forest Labs)
