# What changed with Copilot billing (legacy)

> Learn about what changed with billing and what your options are as a Copilot Pro and Copilot Pro+ annual plan subscriber on the legacy billing model.

- 网址：https://funcoding.ai/agents/github-copilot/reference/copilot-billing/request-based-billing-legacy/what-changed-with-billing/
- 来源：GitHub Copilot 官方文档原文（英文），CC-BY-4.0 许可，同步于 2026-10-11
- 官方原文：https://docs.github.com/en/copilot/reference/copilot-billing/request-based-billing-legacy/what-changed-with-billing

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This article only applies to Copilot Pro and Copilot Pro+ subscribers on an existing annual plan who remained on legacy premium request-based billing after June 1, 2026.

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## What changed with Copilot billing?

GitHub changed how Copilot usage is measured and billed.

Before June 1, 2026, billing was premium request-based: each model interaction cost one **premium request unit** (PRU), and a **multiplier** was applied based on which model you used—more powerful models used more premium requests. Model multipliers are a concept specific to this legacy request-based billing model.

As of June 1, 2026, GitHub replaced request-based billing with usage-based billing, where the cost of an interaction depends on two things: the **model** and the **number of tokens consumed**. Under usage-based billing, each plan comes with an included allowance of GitHub AI Credits, with the option to set a budget for additional usage. To learn more about usage-based billing, see [AUTOTITLE](https://funcoding.ai/agents/github-copilot/concepts/billing-and-usage/individuals/billing/).

## What are my options as a Copilot Pro and Copilot Pro+ user on an existing annual plan?

If you're on an existing **annual plan** for Copilot Pro or Copilot Pro+, you have the option to:
* **Stay** on your existing annual plan under premium request-based billing. When your annual plan ends, you'll be automatically downgraded to Copilot Free.
* **Cancel** your plan, receive a prorated refund, and optionally, re-subscribe to the equivalent monthly paid plan.
* **Upgrade** to a monthly paid plan and receive prorated credits for the remaining value of the annual plan. For example, if you're on a Copilot Pro annual plan, you can upgrade to a monthly Copilot Pro+ plan.

## What happens if I keep my annual plan?

Your existing annual plan will continue to track your Copilot expenditure using premium requests, combined with a model multiplier, until the plan ends. See [AUTOTITLE](https://docs.github.com/copilot/reference/copilot-billing/request-based-billing-legacy/model-multipliers-for-annual-plans).

## Further reading

* To understand more about how the new usage-based billing works, see [AUTOTITLE](https://funcoding.ai/agents/github-copilot/concepts/billing-and-usage/individuals/billing/).
* To learn more about model prices under usage-based billing, see [AUTOTITLE](https://docs.github.com/copilot/reference/copilot-billing/models-and-pricing).