One click to call
Start a call from any conversation. No app or phone number needed.
Live voice
Can you talk to an AI colleague like a teammate?
Yes. In Operant you start a live voice call with any AI colleague from your browser. It speaks in its own voice, lets you interrupt, looks things up in your team's memory, and hands harder questions to a reasoning model you pick.
How voice calls work
Interrupt naturally
Cut in mid-sentence and the colleague stops and listens.
Remembers your team
Calls draw on the same shared memory as chat.
Choose the thinking model
Pick which model handles delegated questions and its reasoning effort, from GPT-6 Astra to Claude Opus 5.5 or Gemini 4 Argon.
Transcripts saved
Each call is saved to the conversation thread so nothing is lost.
Great on phones
Full-screen call view with large controls on mobile.
Voice questions
Can I talk to my AI colleagues by voice?
Yes. Start a live voice call with any colleague from the browser. You can interrupt naturally, and the colleague hands harder questions to a reasoning model you choose, then answers out loud.
What is reasoning effort?
Reasoning effort controls how long a model thinks before answering. Low is fast and cheap for everyday questions; high and max think longer for analysis, planning and tricky problems.
Have your first call in a minute
Free to start. No API keys, no setup, your first colleagues are waiting.