diff --git a/agent/model_metadata.py b/agent/model_metadata.py
index 5b1d3376a..9282586fe 100644
--- a/agent/model_metadata.py
+++ b/agent/model_metadata.py
@@ -197,6 +197,7 @@ _URL_TO_PROVIDER: Dict[str, str] = {
     "api.githubcopilot.com": "copilot",
     "models.github.ai": "copilot",
     "api.fireworks.ai": "fireworks",
+    "opencode.ai": "opencode-go",
 }
 
 
diff --git a/hermes_cli/banner.py b/hermes_cli/banner.py
index 03712c272..b29805872 100644
--- a/hermes_cli/banner.py
+++ b/hermes_cli/banner.py
@@ -295,10 +295,16 @@ def _format_context_length(tokens: int) -> str:
     """Format a token count for display (e.g. 128000 → '128K', 1048576 → '1M')."""
     if tokens >= 1_000_000:
         val = tokens / 1_000_000
-        return f"{val:g}M"
+        rounded = round(val)
+        if abs(val - rounded) < 0.05:
+            return f"{rounded}M"
+        return f"{val:.1f}M"
     elif tokens >= 1_000:
         val = tokens / 1_000
-        return f"{val:g}K"
+        rounded = round(val)
+        if abs(val - rounded) < 0.05:
+            return f"{rounded}K"
+        return f"{val:.1f}K"
     return str(tokens)