diff --git a/model-registry/airouter-qwen3.yaml b/model-registry/airouter-qwen3.yaml
index c8c0248..cea1123 100644
--- a/model-registry/airouter-qwen3.yaml
+++ b/model-registry/airouter-qwen3.yaml
@@ -1,5 +1,6 @@
 name: airouter-qwen3
 endpoint: airouter-qwen3
+provider: alibaba
 scores:
   complexity: 8
   test_pass_rate: 7
diff --git a/model-registry/claude-haiku-4.yaml b/model-registry/claude-haiku-4.yaml
index f0dc098..962ac81 100644
--- a/model-registry/claude-haiku-4.yaml
+++ b/model-registry/claude-haiku-4.yaml
@@ -1,5 +1,6 @@
 name: claude-haiku-4
 endpoint: claude-haiku-4
+provider: anthropic
 scores:
   complexity: 5
   test_pass_rate: 7
diff --git a/model-registry/claude-opus-4.yaml b/model-registry/claude-opus-4.yaml
index 4b75d2f..bd55592 100644
--- a/model-registry/claude-opus-4.yaml
+++ b/model-registry/claude-opus-4.yaml
@@ -1,5 +1,6 @@
 name: claude-opus-4
 endpoint: claude-opus-4
+provider: anthropic
 scores:
   complexity: 10
   test_pass_rate: 9
diff --git a/model-registry/claude-sonnet-4.yaml b/model-registry/claude-sonnet-4.yaml
index 0d7a696..a1a0cb7 100644
--- a/model-registry/claude-sonnet-4.yaml
+++ b/model-registry/claude-sonnet-4.yaml
@@ -1,5 +1,6 @@
 name: claude-sonnet-4
 endpoint: claude-sonnet-4
+provider: anthropic
 scores:
   complexity: 8
   test_pass_rate: 9
diff --git a/model-registry/github-models-gpt4o.yaml b/model-registry/github-models-gpt4o.yaml
index dfc7ae9..a37b651 100644
--- a/model-registry/github-models-gpt4o.yaml
+++ b/model-registry/github-models-gpt4o.yaml
@@ -1,5 +1,6 @@
 name: github-models-gpt4o
 endpoint: github-models-gpt4o
+provider: github
 scores:
   complexity: 8
   test_pass_rate: 8
diff --git a/model-registry/gpt-4o-openai.yaml b/model-registry/gpt-4o-openai.yaml
index 1931c4a..74609ae 100644
--- a/model-registry/gpt-4o-openai.yaml
+++ b/model-registry/gpt-4o-openai.yaml
@@ -1,5 +1,6 @@
 name: gpt-4o-openai
 endpoint: gpt-4o-openai
+provider: openai
 scores:
   complexity: 8
   test_pass_rate: 8
diff --git a/model-registry/opencode-zen-sonnet.yaml b/model-registry/opencode-zen-sonnet.yaml
index bb4b96b..58b86f0 100644
--- a/model-registry/opencode-zen-sonnet.yaml
+++ b/model-registry/opencode-zen-sonnet.yaml
@@ -1,5 +1,6 @@
 name: opencode-zen-sonnet
 endpoint: opencode-zen-sonnet
+provider: opencode
 scores:
   complexity: 8
   test_pass_rate: 9
diff --git a/model-registry/openrouter-sonnet.yaml b/model-registry/openrouter-sonnet.yaml
index 5f0c5ea..e7a3997 100644
--- a/model-registry/openrouter-sonnet.yaml
+++ b/model-registry/openrouter-sonnet.yaml
@@ -1,5 +1,6 @@
 name: openrouter-sonnet
 endpoint: openrouter-sonnet
+provider: openrouter
 scores:
   complexity: 8
   test_pass_rate: 9
diff --git a/model-registry/qwen3-235b.yaml b/model-registry/qwen3-235b.yaml
index 1cd5b57..a799d4d 100644
--- a/model-registry/qwen3-235b.yaml
+++ b/model-registry/qwen3-235b.yaml
@@ -1,5 +1,6 @@
 name: qwen3-235b
 endpoint: qwen3-235b-vllm
+provider: alibaba
 scores:
   complexity: 8
   test_pass_rate: 8