Copilot Billing Bypass: Using Subagents and Agent Definitions to Access Premium Models Without Cost
By
napolux
Crackles when you bite it. Shows the baker did the work.
Summary
The article describes a method to bypass billing and premium request usage in Copilot by exploiting a loophole involving subagents and agent definitions. By combining free models with premium models through agent configurations and subagent calls, users can access expensive premium features like Opus 4.5 without consuming premium requests or incurring costs. The technique leverages the fact that subagents and tool calls don't count toward request consumption, allowing for potentially unlimited free usage of premium models.
Key quotes
· 4 pulledIt's possible in Copilot to bypass any billing / 'premium request' usage by taking advantage of: Combining these correctly results in 'free' and almost unlimited, usage of expensive premium models like Opus 4.5 which would usually cost '3 premium requests'
Subagents and tool calls not consuming any 'requests'
Request cost being calculated on the ...
Set the model to a 'free' model, included in Copilot e.g. GPT-5 Mini. Create an agent, and set it's model to a premium model, e.g. Opus 4.5
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