diff --git a/crates/language_models/src/provider/open_ai_compatible.rs b/crates/language_models/src/provider/open_ai_compatible.rs
index 55df534cc9416149ca5574e16f0230f1c8160220..789eb00a5746c729103f77a1e92d0e58fc4c1ab0 100644
--- a/crates/language_models/src/provider/open_ai_compatible.rs
+++ b/crates/language_models/src/provider/open_ai_compatible.rs
@@ -9,7 +9,7 @@ use language_model::{
     AuthenticateError, LanguageModel, LanguageModelCompletionError, LanguageModelCompletionEvent,
     LanguageModelId, LanguageModelName, LanguageModelProvider, LanguageModelProviderId,
     LanguageModelProviderName, LanguageModelProviderState, LanguageModelRequest,
-    LanguageModelToolChoice, RateLimiter,
+    LanguageModelToolChoice, LanguageModelToolSchemaFormat, RateLimiter,
 };
 use menu;
 use open_ai::{ResponseStreamEvent, stream_completion};
@@ -322,6 +322,10 @@ impl LanguageModel for OpenAiCompatibleLanguageModel {
         self.model.capabilities.tools
     }
 
+    fn tool_input_format(&self) -> LanguageModelToolSchemaFormat {
+        LanguageModelToolSchemaFormat::JsonSchemaSubset
+    }
+
     fn supports_images(&self) -> bool {
         self.model.capabilities.images
     }