docs/content/copilot/using-github-copilot/ai-models/changing-the-ai-model-for-copilot-chat.md

title, shortTitle, intro, versions, topics

title	shortTitle	intro	versions	topics
Changing the AI model for Copilot Chat	Change the chat model	Learn how to change the default LLM for {% data variables.product.prodname_copilot_chat_short %} to a different model.	feature copilot	Copilot

By default, {% data variables.product.prodname_copilot_chat_short %} uses a base model to provide fast, capable responses for a wide range of tasks, such as summarization, knowledge-based questions, reasoning, math, and coding.

However, you are not limited to using this model. You can choose from a selection of other models, each with its own particular strengths. You may have a favorite model that you like to use, or you might prefer to use a particular model for inquiring about a specific subject.

[!NOTE] Different models have different premium request multipliers, which can affect how much of your monthly usage allowance is consumed. For details, see AUTOTITLE.

{% data variables.product.prodname_copilot_short %} allows you to change the model during a chat and have the alternative model used to generate responses to your prompts.

Changing the model that's used by {% data variables.product.prodname_copilot_chat_short %} does not affect the model that's used for {% data variables.product.prodname_copilot_short %} code completion. See AUTOTITLE.

{% webui %}

Note

• Multiple model support in {% data variables.product.prodname_copilot_chat_short %} is in {% data variables.release-phases.public_preview %} and is subject to change.
• Support for GPT-4.5 is only available on {% data variables.product.prodname_copilot_pro_plus_short %}{% ifversion copilot-enterprise %} and {% data variables.product.prodname_copilot_enterprise_short %}{% endif %}.
• You can only use an alternative AI model in the immersive view of {% data variables.product.prodname_copilot_chat_short %}. This is the full-page version of {% data variables.product.prodname_copilot_chat_short %} that's displayed at https://github.com/copilot. The {% data variables.product.prodname_copilot_chat_short %} panel always uses the default model.

AI models for {% data variables.product.prodname_copilot_chat_short %}

The following models are currently available in the immersive mode of {% data variables.product.prodname_copilot_chat_short %}:

• {% data variables.copilot.copilot_gpt_4o %}
• {% data variables.copilot.copilot_gpt_41 %}
• {% data variables.copilot.copilot_gpt_45 %} (preview)
• {% data variables.copilot.copilot_claude_sonnet_35 %}
• {% data variables.copilot.copilot_claude_sonnet_37 %}
• {% data variables.copilot.copilot_claude_sonnet_37 %} Thinking
• {% data variables.copilot.copilot_claude_sonnet_40 %}
• {% data variables.copilot.copilot_claude_opus %}
• {% data variables.copilot.copilot_gemini_flash %}
• {% data variables.copilot.copilot_gemini_25_pro %} (preview)
• {% data variables.copilot.copilot_o1 %}
• {% data variables.copilot.copilot_o3 %}
• {% data variables.copilot.copilot_o3_mini %}
• {% data variables.copilot.copilot_o4_mini %}

For more information about these models, see AUTOTITLE.

Limitations of AI models for {% data variables.product.prodname_copilot_chat_short %}

Experimental pre-release versions of the models may not interact with all filters correctly, including the duplication detection filter.

Changing your AI model

These instructions are for {% data variables.product.prodname_copilot_short %} on the {% data variables.product.github %} website. For instructions on different clients, click the appropriate tab at the top of this page.

{% data reusables.copilot.model-picker-enable-alternative-models %}

[!NOTE] If you use {% data variables.product.prodname_copilot_extensions_short %}, they may override the model you select.

1. In the top right of any page on {% data variables.product.github %}, click {% octicon "triangle-down" aria-label="The downwards triangle icon" %} beside the {% octicon "copilot" aria-hidden="true" aria-label="copilot" %} icon and click Immersive in the dropdown menu.

   

2. At the top of the immersive view, select the CURRENT-MODEL {% octicon "chevron-down" aria-hidden="true" aria-label="chevron-down" %} dropdown menu, then click the AI model of your choice.

3. Optionally, after submitting a prompt, you can regenerate the same prompt using a different model by clicking the retry icon ({% octicon "sync" aria-label="The re-run icon" %}) below the response. The new response will use your selected model and maintain the full context of the conversation.

{% endwebui %}

{% vscode %}

Changing the model that's used by {% data variables.product.prodname_copilot_chat_short %} does not affect the model that's used for {% data variables.product.prodname_copilot_short %} code completion. See AUTOTITLE.

Note

• Multiple model support in {% data variables.product.prodname_copilot_chat_short %} is in {% data variables.release-phases.public_preview %} and is subject to change.
• Support for GPT-4.5 is only available on {% data variables.product.prodname_copilot_pro_plus_short %}{% ifversion copilot-enterprise %} and {% data variables.product.prodname_copilot_enterprise_short %}{% endif %}.

AI models for {% data variables.product.prodname_copilot_chat_short %}

The following models are currently available through multi-model {% data variables.product.prodname_copilot_chat_short %}:

• {% data variables.copilot.copilot_gpt_4o %}
• {% data variables.copilot.copilot_gpt_41 %}
• {% data variables.copilot.copilot_gpt_45 %} (preview)
• {% data variables.copilot.copilot_claude_sonnet_35 %}
• {% data variables.copilot.copilot_claude_sonnet_37 %}
• {% data variables.copilot.copilot_claude_sonnet_37 %} Thinking
• {% data variables.copilot.copilot_claude_sonnet_40 %}
• {% data variables.copilot.copilot_claude_opus %}
• {% data variables.copilot.copilot_gemini_flash %}
• {% data variables.copilot.copilot_o1 %}
• {% data variables.copilot.copilot_o3 %}
• {% data variables.copilot.copilot_o3_mini %}
• {% data variables.copilot.copilot_o4_mini %}

For more information about these models, see AUTOTITLE.

Changing your AI model

These instructions are for {% data variables.product.prodname_vscode_shortname %}. For instructions on different clients, click the appropriate tab at the top of this page.

{% data reusables.copilot.model-picker-enable-alternative-models %}

{% data reusables.copilot.chat-model-limitations-ide %}

{% data reusables.copilot.open-chat-vs-code %}

1. In the bottom right of the chat view, select the CURRENT-MODEL {% octicon "chevron-down" aria-hidden="true" aria-label="chevron-down" %} dropdown menu, then click the AI model of your choice.

{% endvscode %}

{% visualstudio %}

[!NOTE] Multiple model support in {% data variables.product.prodname_copilot_chat_short %} is in {% data variables.release-phases.public_preview %} and is subject to change.

AI models for {% data variables.product.prodname_copilot_chat_short %}

The following models are currently available through multi-model {% data variables.product.prodname_copilot_chat_short %}:

• {% data variables.copilot.copilot_gpt_4o %}
• {% data variables.copilot.copilot_claude_sonnet_35 %}
• {% data variables.copilot.copilot_claude_sonnet_37 %}
• {% data variables.copilot.copilot_o1 %}
• {% data variables.copilot.copilot_o3_mini %}

For more information about these models, see AUTOTITLE.

Changing the AI model for {% data variables.product.prodname_copilot_chat_short %}

These instructions are for {% data variables.product.prodname_vs %}. For instructions on different clients, click the appropriate tab at the top of this page.

To use multi-model {% data variables.product.prodname_copilot_chat_short %}, you must use {% data variables.product.prodname_vs %} 2022 version 17.12 or later. See the {% data variables.product.prodname_vs %} downloads page.

{% data reusables.copilot.model-picker-enable-alternative-models %}

{% data reusables.copilot.chat-model-limitations-ide %}

1. In the {% data variables.product.prodname_vs %} menu bar, click View, then click {% data variables.product.prodname_copilot_chat %}.
2. In the bottom right of the chat view, select the CURRENT-MODEL {% octicon "triangle-down" aria-hidden="true" aria-label="triangle-down" %} dropdown menu, then click the AI model of your choice.

{% endvisualstudio %}

{% jetbrains %}

Note

• Multiple model support in {% data variables.product.prodname_copilot_chat_short %} is in {% data variables.release-phases.public_preview %} and is subject to change.
• Support for GPT-4.5 is only available on {% data variables.product.prodname_copilot_pro_plus_short %}{% ifversion copilot-enterprise %} and {% data variables.product.prodname_copilot_enterprise_short %}{% endif %}.

AI models for {% data variables.product.prodname_copilot_chat_short %}

The following models are currently available through multi-model {% data variables.product.prodname_copilot_chat_short %}:

• {% data variables.copilot.copilot_gpt_4o %}
• {% data variables.copilot.copilot_gpt_41 %}
• {% data variables.copilot.copilot_gpt_45 %} (preview)
• {% data variables.copilot.copilot_claude_sonnet_35 %}
• {% data variables.copilot.copilot_claude_sonnet_37 %}
• {% data variables.copilot.copilot_claude_sonnet_37 %} Thinking
• {% data variables.copilot.copilot_gemini_flash %}
• {% data variables.copilot.copilot_gemini_25_pro %} (preview)
• {% data variables.copilot.copilot_o1 %} (preview)
• {% data variables.copilot.copilot_o3 %} (preview)
• {% data variables.copilot.copilot_o3_mini %}
• {% data variables.copilot.copilot_o4_mini %} (preview)

For more information about these models, see AUTOTITLE.

Changing the AI model for {% data variables.product.prodname_copilot_chat_short %}

These instructions are for the JetBrains IDEs. For instructions on different clients, click the appropriate tab at the top of this page.

{% data reusables.copilot.model-picker-enable-alternative-models %}

{% data reusables.copilot.chat-model-limitations-ide %}

1. Click the {% octicon "copilot" aria-hidden="true" aria-label="copilot" %} icon in the status bar.
2. In the popup menu, click Open {% data variables.product.prodname_copilot_chat %}.
3. In the bottom right of the chat view, select an AI model of your choice from the {% octicon "chevron-down" aria-hidden="true" aria-label="chevron-down" %} dropdown menu.

{% endjetbrains %}

{% eclipse %}

Note

• Multiple model support in {% data variables.product.prodname_copilot_chat_short %} is in {% data variables.release-phases.public_preview %} and is subject to change.
• Support for GPT-4.5 is only available on {% data variables.product.prodname_copilot_pro_plus_short %}{% ifversion copilot-enterprise %} and {% data variables.product.prodname_copilot_enterprise_short %}{% endif %}.

AI models for {% data variables.product.prodname_copilot_chat_short %}

The following models are currently available through multi-model {% data variables.product.prodname_copilot_chat_short %}:

• {% data variables.copilot.copilot_gpt_4o %}
• {% data variables.copilot.copilot_gpt_45 %} (preview)
• {% data variables.copilot.copilot_claude_sonnet_35 %}
• {% data variables.copilot.copilot_claude_sonnet_37 %}
• {% data variables.copilot.copilot_claude_sonnet_37 %} Thinking
• {% data variables.copilot.copilot_gemini_flash %}
• {% data variables.copilot.copilot_o1 %} (preview)
• {% data variables.copilot.copilot_o3_mini %}

For more information about these models, see AUTOTITLE.

Changing the AI model for {% data variables.product.prodname_copilot_chat_short %}

These instructions are for the Eclipse IDE. For instructions on different clients, click the appropriate tab at the top of this page.

{% data reusables.copilot.model-picker-enable-alternative-models %}

{% data reusables.copilot.chat-model-limitations-ide %}

1. Click the {% octicon "copilot" aria-hidden="true" aria-label="copilot" %} icon in the status bar.
2. In the popup menu, click Open Chat.
3. In the bottom right of the chat panel, click the currently selected AI model, then select an alternative model from the popup menu.

{% endeclipse %}

{% xcode %}

Note

• Multiple model support in {% data variables.product.prodname_copilot_chat_short %} is in {% data variables.release-phases.public_preview %} and is subject to change.
• Support for GPT-4.5 is only available on {% data variables.product.prodname_copilot_pro_plus_short %}{% ifversion copilot-enterprise %} and {% data variables.product.prodname_copilot_enterprise_short %}{% endif %}.

AI models for {% data variables.product.prodname_copilot_chat_short %}

The following models are currently available through multi-model {% data variables.product.prodname_copilot_chat_short %}:

• {% data variables.copilot.copilot_gpt_4o %}
• {% data variables.copilot.copilot_gpt_41 %}
• {% data variables.copilot.copilot_gpt_45 %} (preview)
• {% data variables.copilot.copilot_claude_sonnet_35 %}
• {% data variables.copilot.copilot_claude_sonnet_37 %}
• {% data variables.copilot.copilot_claude_sonnet_37 %} Thinking
• {% data variables.copilot.copilot_gemini_flash %}
• {% data variables.copilot.copilot_gemini_25_pro %} (preview)
• {% data variables.copilot.copilot_o1 %} (preview)
• {% data variables.copilot.copilot_o3 %} (preview)
• {% data variables.copilot.copilot_o3_mini %}
• {% data variables.copilot.copilot_o4_mini %} (preview)

For more information about these models, see AUTOTITLE.

Changing the AI model for {% data variables.product.prodname_copilot_chat_short %}

These instructions are for Xcode. For instructions on different clients, click the appropriate tab at the top of this page.

To use multi-model {% data variables.product.prodname_copilot_chat_short %}, you must install the {% data variables.product.prodname_copilot %} for Xcode extension. See AUTOTITLE.

{% data reusables.copilot.model-picker-enable-alternative-models %}

{% data reusables.copilot.chat-model-limitations-ide %}

1. To open the chat view, click Editor in the menu bar, then click {% octicon "copilot" aria-hidden="true" aria-label="copilot" %} {% data variables.product.prodname_copilot_short %} then Open Chat. {% data variables.product.prodname_copilot_chat_short %} opens in a new window.
2. In the bottom right of the chat view, select the CURRENT-MODEL {% octicon "triangle-down" aria-hidden="true" aria-label="triangle-down" %} dropdown menu, then click the AI model of your choice.

{% endxcode %}

Further reading

• AUTOTITLE
• AUTOTITLE
• AUTOTITLE
• AUTOTITLE