GPT-5.4-nano on VS Code Codex extension (#60804)

Author: sunbrye

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

@@ -25,6 +25,7 @@ Used for:
 * {% data variables.copilot.copilot_gpt_53_codex %}
 * {% data variables.copilot.copilot_gpt_54 %}
 * {% data variables.copilot.copilot_gpt_54_mini %}
+* {% data variables.copilot.copilot_gpt_54_nano %}
 
 These models are hosted by OpenAI and {% data variables.product.github %}'s Azure infrastructure.
 

data/reusables/copilot/openai-codex-agent-models.md

@@ -1,3 +1,4 @@
 * {% data variables.copilot.copilot_gpt_52_codex %}
 * {% data variables.copilot.copilot_gpt_53_codex %}
 * {% data variables.copilot.copilot_gpt_54 %}
+* {% data variables.copilot.copilot_gpt_54_nano %}

data/tables/copilot/model-multipliers.yml

@@ -85,6 +85,10 @@
   multiplier_paid: 0.33
   multiplier_free: Not applicable
 
+- name: GPT-5.4 nano
+  multiplier_paid: 0.25
+  multiplier_free: Not applicable
+
 - name: Grok Code Fast 1
   multiplier_paid: 0.25
   multiplier_free: 1

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

@@ -67,6 +67,13 @@
   ask_mode: true
   edit_mode: true
 
+- name: 'GPT-5.4 nano'
+  provider: 'OpenAI'
+  release_status: 'GA'
+  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

@@ -176,6 +176,15 @@
   xcode: true
   jetbrains: true
 
+- name: GPT-5.4 nano
+  dotcom: false
+  cli: false
+  vscode: false
+  vs: false
+  eclipse: false
+  xcode: false
+  jetbrains: false
+
 - name: Grok Code Fast 1
   dotcom: true
   cli: false

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

@@ -157,6 +157,14 @@
   business: true
   enterprise: true
 
+- name: GPT-5.4 nano
+  free: false
+  student: true
+  pro: true
+  pro_plus: true
+  business: true
+  enterprise: true
+
 - name: Grok Code Fast 1
   free: true
   student: true

data/variables/copilot.yml

@@ -175,6 +175,7 @@ copilot_gpt_52_codex: 'GPT-5.2-Codex'
 copilot_gpt_53_codex: 'GPT-5.3-Codex'
 copilot_gpt_54: 'GPT-5.4'
 copilot_gpt_54_mini: 'GPT-5.4 mini'
+copilot_gpt_54_nano: 'GPT-5.4 nano'
 # OpenAI 'o' series:
 copilot_o3: 'o3'
 copilot_o4_mini: 'o4-mini'