# GitHub Copilot charges GPT 5.5 with a 57x multiplier per request from June first

> Source: <https://docs.github.com/en/copilot/reference/copilot-billing/request-based-billing-legacy/model-multipliers-for-annual-plans>
> Published: 2026-05-30 18:09:01+00:00

Important

On June 1, 2026, GitHub moved to usage-based billing. The model multipliers in this article apply only to Copilot Pro and Copilot Pro+ subscribers on an existing **annual plan** who remained on the legacy **premium request-based billing** model after June 1, 2026.

To learn more about these billing changes, including what your options are as an existing Copilot Pro and Copilot Pro+ subscriber on an annual plan, see [What changed with Copilot billing (legacy)](/en/copilot/reference/copilot-billing/request-based-billing-legacy/what-changed-with-billing).

Under the legacy premium request-based billing model, each model has a premium request multiplier, based on its complexity and resource usage. Your premium request allowance is deducted according to this multiplier.

Model multipliers are a concept specific to the legacy premium request-based billing system, and **do not apply** to GitHub's new usage-based billing model.

The models included with Copilot plans are subject to change.

Model multipliers and costs are subject to change.

Note

If you use auto model selection in Copilot Chat, Copilot CLI, or Copilot cloud agent, you qualify for a 10% discount. For example, if a model has a multiplier of 1x you'll be billed at 0.9x instead.

[Model multipliers](#model-multipliers)

The following table shows the model multipliers per supported model.

Note

The multiplier for these models are subject to change.

- Claude Sonnet 4.6
- GPT-5.4 mini

| Model | Multiplier |
|---|---|
| Claude Haiku 4.5 | 0.33 |
| Claude Opus 4.5 | 15 |
| Claude Opus 4.6 | 27 |
| Claude Opus 4.7 | 27 |
| Claude Opus 4.8 | 27 |
| Claude Sonnet 4.5 | 6 |
| Claude Sonnet 4.6 | 9 |
| Gemini 2.5 Pro | 1 |
| Gemini 3 Flash | 0.33 |
| Gemini 3 Pro | 6 |
| Gemini 3.1 Pro | 6 |
| Gemini 3.5 Flash | 14 |
| GPT-4o | 0.33 |
| GPT-4o mini | 0.33 |
| GPT-4.1 | 1 |
| GPT-5.1 | 3 |
| GPT-5.1-Codex | 3 |
| GPT-5.1-Codex-Mini | 0.33 |
| GPT-5.1-Codex-Max | 3 |
| GPT-5.2 | 3 |
| GPT-5.2-Codex | 3 |
| GPT-5.3-Codex | 6 |
| GPT-5.4 | 6 |
| GPT-5.4 mini | 6 |
| GPT-5.5 | 57 |
| GPT-5 mini | 0.33 |
| Raptor mini | 0.33 |

[Model multiplier for Copilot code review](#model-multiplier-for-copilot-code-review)

Copilot code review has a model multiplier of 13. This means each time Copilot reviews a pull request or reviews code in your IDE, your monthly quota of Copilot premium requests is reduced by 13.

[Further reading](#further-reading)

- To learn more about premium requests, see
[Requests in GitHub Copilot (legacy)](/en/copilot/managing-copilot/monitoring-usage-and-entitlements/about-premium-requests). - To understand more about how the new usage-based billing model works, see
[Usage-based billing for individuals](/en/copilot/concepts/billing/usage-based-billing-for-individuals).