diff --git a/internal/agent/coordinator.go b/internal/agent/coordinator.go
index 60f65c8d4514f1a69e99a8466b920d7021d164af..bdb01e9e2bc233e636b99277bdea20e6b3644cc7 100644
--- a/internal/agent/coordinator.go
+++ b/internal/agent/coordinator.go
@@ -1051,7 +1051,12 @@ func (c *coordinator) updateParentSessionCost(ctx context.Context, childSessionI
 
 	parentSession.Cost += childSession.Cost
 
-	if _, err := c.sessions.SaveWithModels(ctx, parentSession, c.cfg.Config().Models); err != nil {
+	models := maps.Clone(c.cfg.Config().Models)
+	for name, model := range models {
+		model.ProviderOptions = maps.Clone(model.ProviderOptions)
+		models[name] = model
+	}
+	if _, err := c.sessions.SaveWithModels(ctx, parentSession, models); err != nil {
 		return fmt.Errorf("save parent session: %w", err)
 	}
 
diff --git a/internal/agent/tools/todos.go b/internal/agent/tools/todos.go
index ea6dca52d54814a6e0e83b71f6c7d77b8c5502db..b7d0c8b65eab73b906fc61dc5b77694be2598668 100644
--- a/internal/agent/tools/todos.go
+++ b/internal/agent/tools/todos.go
@@ -4,6 +4,7 @@ import (
 	"context"
 	_ "embed"
 	"fmt"
+	"maps"
 
 	"charm.land/fantasy"
 	"github.com/charmbracelet/crush/internal/config"
@@ -97,7 +98,12 @@ func NewTodosTool(sessions session.Service, cfg *config.ConfigStore) fantasy.Age
 			}
 
 			currentSession.Todos = todos
-			_, err = sessions.SaveWithModels(ctx, currentSession, cfg.Config().Models)
+			models := maps.Clone(cfg.Config().Models)
+			for name, model := range models {
+				model.ProviderOptions = maps.Clone(model.ProviderOptions)
+				models[name] = model
+			}
+			_, err = sessions.SaveWithModels(ctx, currentSession, models)
 			if err != nil {
 				return fantasy.ToolResponse{}, fmt.Errorf("failed to save todos: %w", err)
 			}