diff --git a/.config/opencode/agent/subagents/build.md b/.config/opencode/agent/subagents/build.md
index 480b85e..4f7f322 100644
--- a/.config/opencode/agent/subagents/build.md
+++ b/.config/opencode/agent/subagents/build.md
@@ -1,7 +1,7 @@
 ---
 description: "Build and validation agent"
 mode: subagent
-model: github-copilot/gpt-4.1
+model: opencode/minimax-m2.1-free
 temperature: 0.1
 tools:
   webfetch: false
diff --git a/.config/opencode/agent/subagents/coder.md b/.config/opencode/agent/subagents/coder.md
index b96ee12..17ac416 100644
--- a/.config/opencode/agent/subagents/coder.md
+++ b/.config/opencode/agent/subagents/coder.md
@@ -1,7 +1,7 @@
 ---
 description: "Executes coding subtasks in sequence, ensuring completion as specified"
 mode: subagent
-model: github-copilot/gpt-4.1
+model: opencode/minimax-m2.1-free
 temperature: 0.1
 tools:
   webfetch: false
diff --git a/.config/opencode/agent/subagents/context.md b/.config/opencode/agent/subagents/context.md
index a5c7ea4..58a4f8f 100644
--- a/.config/opencode/agent/subagents/context.md
+++ b/.config/opencode/agent/subagents/context.md
@@ -1,7 +1,7 @@
 ---
 description: "Language-agnostic codebase pattern analyst agent"
 mode: subagent
-model: github-copilot/gpt-4.1
+model: opencode/minimax-m2.1-free
 temperature: 0.1
 tools:
   bash: false
diff --git a/.config/opencode/agent/subagents/documentation.md b/.config/opencode/agent/subagents/documentation.md
index ce3be21..96eba73 100644
--- a/.config/opencode/agent/subagents/documentation.md
+++ b/.config/opencode/agent/subagents/documentation.md
@@ -1,7 +1,7 @@
 ---
 description: "Universal code documentation subagent: inserts/updates doc comments for functions, methods, and modules in any language."
 mode: subagent
-model: github-copilot/gpt-4.1
+model: opencode/minimax-m2.1-free
 temperature: 0.2
 tools:
   bash: false
diff --git a/.config/opencode/agent/subagents/research.md b/.config/opencode/agent/subagents/research.md
index cd2c03c..38eca54 100644
--- a/.config/opencode/agent/subagents/research.md
+++ b/.config/opencode/agent/subagents/research.md
@@ -1,7 +1,7 @@
 ---
 description: "Research subagent for information gathering and summarization"
 mode: subagent
-model: github-copilot/gpt-4.1
+model: opencode/minimax-m2.1-free
 temperature: 0.1
 tools:
   bash: false
diff --git a/.config/opencode/agent/subagents/reviewer.md b/.config/opencode/agent/subagents/reviewer.md
index 9e15aa7..8a5c74a 100644
--- a/.config/opencode/agent/subagents/reviewer.md
+++ b/.config/opencode/agent/subagents/reviewer.md
@@ -1,7 +1,7 @@
 ---
 description: "Comprehensive code review, security, and quality assurance subagent"
 mode: subagent
-model: github-copilot/gpt-4.1
+model: opencode/minimax-m2.1-free
 temperature: 0.1
 tools:
   bash: false
diff --git a/.config/opencode/agent/subagents/task-manager.md b/.config/opencode/agent/subagents/task-manager.md
index 13bc240..5973aa8 100644
--- a/.config/opencode/agent/subagents/task-manager.md
+++ b/.config/opencode/agent/subagents/task-manager.md
@@ -1,7 +1,7 @@
 ---
 description: "Breaks down complex features into small, verifiable subtasks"
 mode: subagent
-model: github-copilot/gpt-4.1
+model: opencode/minimax-m2.1-free
 temperature: 0.1
 tools:
   bash: false
diff --git a/.config/opencode/agent/subagents/tester.md b/.config/opencode/agent/subagents/tester.md
index 1e22571..64d9b10 100644
--- a/.config/opencode/agent/subagents/tester.md
+++ b/.config/opencode/agent/subagents/tester.md
@@ -1,7 +1,7 @@
 ---
 description: "Test authoring and TDD agent"
 mode: subagent
-model: github-copilot/gpt-4.1
+model: opencode/minimax-m2.1-free
 temperature: 0.1
 tools:
   patch: false