Replit's Agent 3 Highlights Shift to Autonomous AI Systems
The new agent, which can operate for 200 minutes, exemplifies a broader industry move from assistive copilots to AI that executes complex tasks independently.
A More Capable AI Collaborator
Replit, an AI-powered software development platform, on September 10, 2025, launched Agent 3, which it described as its most autonomous agent to date. The new product represents a significant advance over its predecessors, extending its autonomous runtime to 200 minutes, compared to just two minutes for its first version. This extended duration allows the agent to tackle more complex, human-level tasks.
According to Replit, Agent 3 can: - Test and fix its own code. - Build custom agents for specific tasks. - Automate workflows for both software engineering and other business functions.
"We were …
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