Tented 0013 (#58700)

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
Co-authored-by: Nhu Do <nhu-do@github.com>

Author: 3 people

content/copilot/concepts/auto-model-selection.md

@@ -17,7 +17,7 @@ category:
 
 Experience less rate limiting and reduce the mental load of choosing a model by letting {% data variables.copilot.copilot_auto_model_selection %} automatically choose the best available model on your behalf.
 
-{% data variables.copilot.copilot_auto_model_selection %} is currently optimized for model availability, choosing from a list of models that may change over time. It currently chooses from {% data variables.copilot.copilot_gpt_41 %}, {% data variables.copilot.copilot_gpt_5_mini %}, {% data variables.copilot.copilot_gpt_5 %}, {% data variables.copilot.copilot_claude_haiku_45 %}, and {% data variables.copilot.copilot_claude_sonnet_45 %}, based on your subscription type. 
+{% data variables.copilot.copilot_auto_model_selection %} is currently optimized for model availability, choosing from a list of models that may change over time. It currently chooses from {% data variables.copilot.copilot_gpt_41 %}, {% data variables.copilot.copilot_gpt_5_mini %}, {% data variables.copilot.copilot_gpt_51_codex_max %}, {% data variables.copilot.copilot_claude_haiku_45 %}, {% data variables.copilot.copilot_claude_sonnet_45 %}, and {% data variables.copilot.copilot_gemini_3_pro %}, based on your subscription type.
 
 With {% data variables.copilot.copilot_auto_model_selection %}, you benefit from:
   * Reduced chances of rate limiting

content/copilot/reference/ai-models/model-hosting.md

@@ -27,6 +27,7 @@ Used for:
 * {% data variables.copilot.copilot_gpt_51 %}
 * {% data variables.copilot.copilot_gpt_51_codex %}
 * {% data variables.copilot.copilot_gpt_51_codex_mini %}
+* {% data variables.copilot.copilot_gpt_51_codex_max %}
 
 These models are hosted by OpenAI and {% data variables.product.github %}'s Azure infrastructure.
 

data/tables/copilot/model-multipliers.yml

@@ -69,6 +69,10 @@
   multiplier_paid: 0.33
   multiplier_free: Not applicable
 
+- name: GPT-5.1-Codex-Max
+  multiplier_paid: 1.0
+  multiplier_free: Not applicable
+
 - name: Grok Code Fast 1
   multiplier_paid: 0.25
   multiplier_free: Not applicable

data/tables/copilot/model-release-status.yml

@@ -67,6 +67,13 @@
   ask_mode: true
   edit_mode: true
 
+- name: 'GPT-5.1-Codex-Max'
+  provider: 'OpenAI'
+  release_status: 'Public preview'
+  agent_mode: true
+  ask_mode: true
+  edit_mode: true
+
 # Anthropic models
 - name: 'Claude Haiku 4.5'
   provider: 'Anthropic'

data/tables/copilot/model-supported-clients.yml

@@ -125,6 +125,14 @@
   xcode: true
   jetbrains: true
 
+- name: GPT-5.1-Codex-Max
+  dotcom: true
+  vscode: true
+  vs: false
+  eclipse: false
+  xcode: false
+  jetbrains: false
+
 - name: Grok Code Fast 1
   dotcom: true
   vscode: true

data/tables/copilot/model-supported-plans.yml

@@ -110,6 +110,13 @@
   business: true
   enterprise: true
 
+- name: GPT-5.1-Codex-Max
+  free: false
+  pro: true
+  pro_plus: true
+  business: true
+  enterprise: true
+
 - name: Grok Code Fast 1
   free: false
   pro: true

data/variables/copilot.yml

@@ -158,6 +158,7 @@ copilot_gpt_5_mini: 'GPT-5 mini'
 copilot_gpt_51: 'GPT-5.1'
 copilot_gpt_51_codex: 'GPT-5.1-Codex'
 copilot_gpt_51_codex_mini: 'GPT-5.1-Codex-Mini'
+copilot_gpt_51_codex_max: 'GPT-5.1-Codex-Max'
 # OpenAI 'o' series:
 copilot_o3: 'o3'
 copilot_o4_mini: 'o4-mini'