Choose the right execution model
Use functions for bounded actions, workflows for explicit control flow, and agents when the next step depends on what the model discovers.
Open-source AI infrastructure
Use agents for judgment. Use workflows for control.
Combine durable tool-using AI agents with versioned visual workflows, parallel branches, triggers, retries, memory, and human approval gates.
Keep long-running work durable
Manage sessions, tools, approvals, streaming events, sandbox state, triggers, workflow versions, and subagent coordination in one runtime.