diff --git a/CHANGELOG.md b/CHANGELOG.md
index 27646638..4d82efd7 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,7 @@
 # Changelog
 
 ## Unreleased
+- Add missing models supported by Github Copilot
 
 ## 0.75.1
 
diff --git a/integration-test/integration/initialize_test.clj b/integration-test/integration/initialize_test.clj
index 94601db3..1976775e 100644
--- a/integration-test/integration/initialize_test.clj
+++ b/integration-test/integration/initialize_test.clj
@@ -17,11 +17,15 @@
                 "anthropic/claude-opus-4-20250514"
                 "anthropic/claude-sonnet-4-20250514"
                 "anthropic/claude-sonnet-4-5-20250929"
+                "github-copilot/claude-haiku-4.5"
+                "github-copilot/claude-opus-4.1"
                 "github-copilot/claude-sonnet-4.5"
                 "github-copilot/gemini-2.5-pro"
                 "github-copilot/gpt-4.1"
+                "github-copilot/gpt-4o"
                 "github-copilot/gpt-5"
                 "github-copilot/gpt-5-mini"
+                "github-copilot/grok-code-fast-1"
                 "google/gemini-2.0-flash"
                 "google/gemini-2.5-pro"
                 "openai/gpt-4.1"
@@ -77,11 +81,15 @@
                 "anthropic/claude-opus-4-20250514"
                 "anthropic/claude-sonnet-4-20250514"
                 "anthropic/claude-sonnet-4-5-20250929"
+                "github-copilot/claude-haiku-4.5"
+                "github-copilot/claude-opus-4.1"
                 "github-copilot/claude-sonnet-4.5"
                 "github-copilot/gemini-2.5-pro"
                 "github-copilot/gpt-4.1"
+                "github-copilot/gpt-4o"
                 "github-copilot/gpt-5"
                 "github-copilot/gpt-5-mini"
+                "github-copilot/grok-code-fast-1"
                 "google/gemini-2.0-flash"
                 "google/gemini-2.5-pro"
                 "my-custom/bar2"
diff --git a/src/eca/config.clj b/src/eca/config.clj
index deceea5a..e684df80 100644
--- a/src/eca/config.clj
+++ b/src/eca/config.clj
@@ -58,11 +58,15 @@
                                  :url "https://api.githubcopilot.com"
                                  :key nil ;; not supported, requires login auth
                                  :keyEnv nil ;; not supported, requires login auth
-                                 :models {"gpt-5" {}
+                                 :models {"claude-haiku-4.5" {}
+                                          "claude-opus-4.1" {}
+                                          "claude-sonnet-4.5" {}
+                                          "gpt-5" {}
                                           "gpt-5-mini" {}
                                           "gpt-4.1" {}
-                                          "gemini-2.5-pro" {}
-                                          "claude-sonnet-4.5" {}}}
+                                          "gpt-4o" {}
+                                          "grok-code-fast-1" {}
+                                          "gemini-2.5-pro" {}}}
                "google" {:api "openai-chat"
                          :url "https://generativelanguage.googleapis.com/v1beta/openai"
                          :key nil