
interactive lab
← all modulesAI Conversation Simulator
Watch how AI conversations work under the hood — step through real API calls and agent workflows. See the JSON messages, tool calls, and the agent loop in action.
conversation simulator
2 phases
timelineready to begin
the basics
What Happens When You Send a Message
When you type into ChatGPT, a structured request is sent to the model behind the scenes. It includes a system prompt — hidden instructions that tell the model how to behave — along with your message. This simulation shows you exactly what that request looks like.
use the controls above to step phase-by-phase or autoplay
context window
press play to see the context window