Tented model release 0021 (#59565)

Co-authored-by: sunbrye <sunbrye@github.com>

Author: crwaters16

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

@@ -30,6 +30,7 @@ Used for:
 * {% data variables.copilot.copilot_gpt_51_codex_max %}
 * {% data variables.copilot.copilot_gpt_52 %}
 * {% data variables.copilot.copilot_gpt_52_codex %}
+* {% data variables.copilot.copilot_gpt_53_codex %}
 
 These models are hosted by OpenAI and {% data variables.product.github %}'s Azure infrastructure.
 

data/tables/copilot/model-multipliers.yml

@@ -93,6 +93,10 @@
   multiplier_paid: 1.0
   multiplier_free: Not applicable
 
+- name: GPT-5.3-Codex
+  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

@@ -88,6 +88,13 @@
   ask_mode: true
   edit_mode: true
 
+- name: 'GPT-5.3-Codex'
+  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

@@ -173,6 +173,14 @@
   xcode: true
   jetbrains: true
 
+- name: GPT-5.3-Codex
+  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

@@ -152,6 +152,13 @@
   business: true
   enterprise: true
 
+- name: GPT-5.3-Codex
+  free: false
+  pro: true
+  pro_plus: true
+  business: true
+  enterprise: true
+
 - name: Grok Code Fast 1
   free: false
   pro: true

data/variables/copilot.yml

@@ -166,6 +166,7 @@ copilot_gpt_51_codex_mini: 'GPT-5.1-Codex-Mini'
 copilot_gpt_51_codex_max: 'GPT-5.1-Codex-Max'
 copilot_gpt_52: 'GPT-5.2'
 copilot_gpt_52_codex: 'GPT-5.2-Codex'
+copilot_gpt_53_codex: 'GPT-5.3-Codex'
 # OpenAI 'o' series:
 copilot_o3: 'o3'
 copilot_o4_mini: 'o4-mini'