diff --git a/src/util/redis_keys.rs b/src/util/redis_keys.rs
index f93fddf321..7939ba0ad3 100644
--- a/src/util/redis_keys.rs
+++ b/src/util/redis_keys.rs
@@ -5,13 +5,27 @@ impl RedisKeys {
 
   /// This is a counter incremented with TTS inference.
   /// We can use a job to read MySql and fix counts if they get out of sync.
+  /// These should be long-lived keys.
   pub fn tts_model_usage_count(model_token: &str) -> String {
     format!("ttsUseCount:{}", model_token)
   }
 
   /// This is a counter incremented with TTS inference.
   /// We can use a job to read MySql and fix counts if they get out of sync.
+  /// These should be long-lived keys.
   pub fn w2l_template_usage_count(template_token: &str) -> String {
     format!("w2lUseCount:{}", template_token)
   }
+
+  /// We write extra in-progress status information to keys.
+  /// These keys should have a TTL.
+  pub fn tts_inference_extra_status_info(inference_job_token: &str) -> String {
+    format!("ttsInferenceExtraStatus:{}", inference_job_token)
+  }
+
+  /// We write extra in-progress status information to keys.
+  /// These keys should have a TTL.
+  pub fn w2l_inference_extra_status_info(inference_job_token: &str) -> String {
+    format!("w2lInferenceExtraStatus:{}", inference_job_token)
+  }
 }