diff --git a/05-foundry-project-pattern-setup/05-02-deploy-foundry-core-gateway/main.bicep b/05-foundry-project-pattern-setup/05-02-deploy-foundry-core-gateway/main.bicep
index bd7c372..714d99d 100644
--- a/05-foundry-project-pattern-setup/05-02-deploy-foundry-core-gateway/main.bicep
+++ b/05-foundry-project-pattern-setup/05-02-deploy-foundry-core-gateway/main.bicep
@@ -120,7 +120,10 @@ resource researchHub 'Microsoft.CognitiveServices/accounts@2025-04-01-preview' =
 resource researchModel 'Microsoft.CognitiveServices/accounts/deployments@2025-04-01-preview' = {
   parent: researchHub
   name: 'o3-deep-research'
-  sku: { name: 'GlobalStandard', capacity: 10 }
+  // Capacity is K-TPM. 10 was too low - multi-step deep-research runs hit
+  // 429 throttling before completing. 200 gives realistic headroom while
+  // staying well under the Norway East o3-DeepResearch subscription quota.
+  sku: { name: 'GlobalStandard', capacity: 200 }
   properties: {
     model: {
       name: 'o3-deep-research'
diff --git a/12-foundry-iq-deep-research/main.bicep b/12-foundry-iq-deep-research/main.bicep
index eb4ae51..7444360 100644
--- a/12-foundry-iq-deep-research/main.bicep
+++ b/12-foundry-iq-deep-research/main.bicep
@@ -54,7 +54,10 @@ resource researchHub 'Microsoft.CognitiveServices/accounts@2025-04-01-preview' =
 resource researchModel 'Microsoft.CognitiveServices/accounts/deployments@2025-04-01-preview' = {
   parent: researchHub
   name: 'o3-deep-research'
-  sku: { name: 'GlobalStandard', capacity: 10 }
+  // Capacity is K-TPM. 10 was too low - multi-step deep-research runs hit
+  // 429 throttling before completing. 200 gives realistic headroom while
+  // staying well under the Norway East o3-DeepResearch subscription quota.
+  sku: { name: 'GlobalStandard', capacity: 200 }
   properties: {
     model: {
       name: 'o3-deep-research'
diff --git a/CHANGELOG.md b/CHANGELOG.md
index de7a854..4a0b115 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,12 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [0.8.5] - 2026-05-27
+
+### Fixed
+
+- Raised the `o3-deep-research` model deployment capacity from 10 (10K TPM) to 200 (200K TPM) in both `05-foundry-project-pattern-setup/05-02-deploy-foundry-core-gateway/main.bicep` and `12-foundry-iq-deep-research/main.bicep`. The original 10K cap throttled multi-step deep-research runs with 429 errors before completion. 200K stays well under the Norway East `o3-DeepResearch` subscription quota (3000). Existing live deployments must be updated separately (`az cognitiveservices account deployment update --sku-capacity 200`) or via a fresh Bicep apply.
+
 ## [0.8.4] - 2026-05-27
 
 ### Fixed
diff --git a/pyproject.toml b/pyproject.toml
index ad85cc2..03cd9d9 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "awesome-foundry-nextgen"
-version = "0.8.4"
+version = "0.8.5"
 description = "Hands-on labs for Microsoft Foundry — Azure's unified PaaS for enterprise AI"
 requires-python = ">=3.11"
 dependencies = [