Tuesday Jun 23
PRODUCTMicrosoft

Microsoft's AI Coworker Bills Per Task

23JUN
PAY PER TASKFORTUNE 5001 CENT EACH

Microsoft's AI coworker, Copilot Cowork, is now live worldwide. It runs long multi-step tasks and bills by usage, not a flat seat. Half the Fortune 500 already use it. It runs on Claude.

Copilot Cowork hit general availability June 16. It finishes complex work end-to-end, not just drafts.

Billing is usage-based, in Copilot Credits, at one cent each on pay-as-you-go. Price per task depends on model, context, tools, and runtime. It is off by default, with spend limits.

It runs on Anthropic's Opus 4.8 and Sonnet 4.6 today. Microsoft's own test claims it is 30-40% cheaper than Claude's Cowork. A cheaper in-house model, Cowork 1, is coming.

full brief & sources

⚡ Why this matters

  • Metered agent billing arrives at enterprise scale, not just in dev tools.
  • Microsoft sells an AI teammate to over half the Fortune 500 on day one.
  • Microsoft's flagship agent runs on Anthropic's models, then undercuts Anthropic on price.

🔍 What happened

  • Copilot Cowork went generally available worldwide on June 16.
  • It requires a Microsoft 365 Copilot license, then bills per task.
  • Pay-as-you-go is one cent per Copilot Credit, set by model, context, tools, runtime.
  • Off by default; admins set tenant, group, and user spend caps.
  • It runs on Anthropic Opus 4.8 and Sonnet 4.6 today; GPT-5.5 in preview.
  • An in-house model, Cowork 1, is coming for lower cost.

💬 Smart takes

  • Charles Lamanna, Microsoft EVP: Cowork is the fastest-growing feature in the history of the Frontier program.
  • Skeptic: variable per-task pricing makes budgets hard, and finance teams hate bills they can't predict.

🧭 Where this goes

  1. Likelyusage-based agent billing becomes the enterprise norm by year-end.
  2. Likely'AI credits' shows up as a new line in IT budgets and FinOps tools.
  3. PossibleMicrosoft's Cowork 1 cuts its dependence on Claude within two quarters.
  4. Wild Carda customer gets a surprise five-figure Cowork bill and it goes public.

🥄 The Spoon Take

The seat license is dying for agents. You pay for work done, not chairs filled. Microsoft is also doing something quietly bold: selling an AI coworker on Claude while building a cheaper model to replace it. The runtime owner wins, not the model owner.

🤔 Pushback

Usage-based pricing can stall adoption; if employees fear running up a bill, they just won't use it.

·Microsoft 365 - Cowork is GA·Neowin - Usage-based billing