diff --git a/config/example.yaml b/config/example.yaml
index 20b0aa5..37788d6 100644
--- a/config/example.yaml
+++ b/config/example.yaml
@@ -58,8 +58,12 @@ model:
   - openai/gpt-oss-120b
 
 # Optional OpenAI client parameters passed to chat completions.
-# Common options: seed, temperature, max_tokens, parallel_tool_calls
+# Common options: temperature, max_tokens, parallel_tool_calls
 # The `extra_body` field passes provider-specific parameters (e.g., OpenRouter).
+#
+# NOTE: You can add `seed` for mostly-deterministic outputs with providers that
+# support it (e.g. OpenAI), but note that some providers (e.g. Google) reject the
+# `seed` parameter with a 400 error. Use it only if you know your provider supports it.
 model_config:
   extra_body:
     usage:
diff --git a/src/balatrollm/config.py b/src/balatrollm/config.py
index 52539cc..8e04f7e 100644
--- a/src/balatrollm/config.py
+++ b/src/balatrollm/config.py
@@ -16,7 +16,6 @@
 ################################################################################
 
 DEFAULT_MODEL_CONFIG: dict[str, bool | int | str | dict] = {
-    "seed": 1,
     "parallel_tool_calls": False,
     "tool_choice": "auto",
     "extra_headers": {