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

GitHub will charge Copilot Pro and Pro+ users on legacy annual plans a 57x multiplier per request for GPT-5.5 starting June 1, 2026, under the platform's new usage-based billing transition. The multiplier, which applies only to subscribers who remained on the old premium request-based model, reflects the model's complexity and resource usage. Other models range from 0.33x for GPT-4o mini to 27x for Claude Opus 4.6, with a 10% discount available for auto model selection.

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 .