tented-model-022 (#60260)

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: dihydroJenoxide <97056108+dihydroJenoxide@users.noreply.github.com>

Author: Copilot

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

@@ -28,6 +28,7 @@ Used for:
 * {% 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_mini %}
 
 These models are hosted by OpenAI and {% data variables.product.github %}'s Azure infrastructure.
 

content/copilot/reference/ai-models/supported-models.md

@@ -90,7 +90,11 @@ The following table shows which AI models are available in each {% data variable
 
 ## Model multipliers
 
-{% data reusables.copilot.sonnet-46-model-multiplier-note %}
+> [!NOTE]
+> The multiplier for these models are subject to change.
+>
+> * {% data variables.copilot.copilot_claude_sonnet_46 %}
+> * {% data variables.copilot.copilot_gpt_54_mini %}
 
 Each model has a premium request multiplier, based on its complexity and resource usage. If you are on a paid {% data variables.product.prodname_copilot_short %} plan, your premium request allowance is deducted according to this multiplier.
 

data/tables/copilot/model-comparison.yml

@@ -55,6 +55,11 @@
 - name: GPT-5.4
   task_area: Deep reasoning and debugging
   excels_at: Multi-step problem solving and architecture-level code analysis
+  further_reading: '[GPT-5.4 model card](https://deploymentsafety.openai.com/gpt-5-4-thinking/introduction)'
+
+- name: GPT-5.4 mini
+  task_area: Agentic software development
+  excels_at: Codebase exploration and is especially effective when using grep-style tools
   further_reading: 'Not available'
 
 # Anthropic

data/tables/copilot/model-multipliers.yml

@@ -97,6 +97,10 @@
   multiplier_paid: 1.0
   multiplier_free: Not applicable
 
+- name: GPT-5.4 mini
+  multiplier_paid: 0.33
+  multiplier_free: Not applicable
+
 - name: Grok Code Fast 1
   multiplier_paid: 0.25
   multiplier_free: 1

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

@@ -88,6 +88,13 @@
   ask_mode: true
   edit_mode: true
 
+- name: 'GPT-5.4 mini'
+  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

@@ -203,6 +203,15 @@
   xcode: true
   jetbrains: true
 
+- name: GPT-5.4 mini
+  dotcom: true
+  cli: true
+  vscode: true
+  vs: true
+  eclipse: true
+  xcode: true
+  jetbrains: true
+
 - name: Grok Code Fast 1
   dotcom: true
   cli: false

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

@@ -181,6 +181,14 @@
   business: true
   enterprise: true
 
+- name: GPT-5.4 mini
+  free: false
+  student: false
+  pro: true
+  pro_plus: true
+  business: true
+  enterprise: true
+
 - name: Grok Code Fast 1
   free: true
   student: true

data/variables/copilot.yml

@@ -176,6 +176,7 @@ copilot_gpt_52: 'GPT-5.2'
 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'
 # OpenAI 'o' series:
 copilot_o3: 'o3'
 copilot_o4_mini: 'o4-mini'