diff --git a/Models/ChainRecord.cs b/Models/ChainRecord.cs
index b8a15e5..f462331 100644
--- a/Models/ChainRecord.cs
+++ b/Models/ChainRecord.cs
@@ -20,5 +20,6 @@ public class ChainRecord
     public string ArchiveId { get; set; }
     public string StreamErrorInfo { get; set; }
     public bool PlanMode { get; set; }
+    public string Effort { get; set; }
     public string CreatedAt { get; set; }
 }
diff --git a/Services/AnthropicService.Cli.cs b/Services/AnthropicService.Cli.cs
index c1b8384..f7f865e 100644
--- a/Services/AnthropicService.Cli.cs
+++ b/Services/AnthropicService.Cli.cs
@@ -307,6 +307,7 @@ public partial class AnthropicService
                 chainId,
                 durationMs = sw.ElapsedMilliseconds,
                 stopReason,
+                effort,
                 viaCli = true
             }, sseCt);
         }
@@ -323,6 +324,7 @@ public partial class AnthropicService
                 chainId,
                 durationMs = sw.ElapsedMilliseconds,
                 stopReason = stoppedReason,
+                effort,
                 viaCli = true
             }, CancellationToken.None);
         }
@@ -352,6 +354,7 @@ public partial class AnthropicService
                 chainId,
                 durationMs = sw.ElapsedMilliseconds,
                 stopReason = "error",
+                effort,
                 viaCli = true
             }, sseCt);
         }
diff --git a/Services/AnthropicService.Streaming.cs b/Services/AnthropicService.Streaming.cs
index aa56e38..2e4a929 100644
--- a/Services/AnthropicService.Streaming.cs
+++ b/Services/AnthropicService.Streaming.cs
@@ -302,7 +302,8 @@ public partial class AnthropicService
                         durationMs = sw.ElapsedMilliseconds,
                         stopReason = finalStopReason,
                         streamErrorInfo,
-                        planMode
+                        planMode,
+                        effort
                     }, sseCt);
                     return;
                 }
@@ -346,7 +347,8 @@ public partial class AnthropicService
                 chainId,
                 durationMs = sw.ElapsedMilliseconds,
                 stopReason = "stopped",
-                planMode
+                planMode,
+                effort
             }, CancellationToken.None);
         }
         catch (Exception) when (workCt.IsCancellationRequested || hardCt.IsCancellationRequested)
@@ -367,7 +369,8 @@ public partial class AnthropicService
                 chainId,
                 durationMs = sw.ElapsedMilliseconds,
                 stopReason = "stopped",
-                planMode
+                planMode,
+                effort
             }, CancellationToken.None);
         }
         catch (OperationCanceledException)
diff --git a/Services/ChatService.cs b/Services/ChatService.cs
index 1c7aabd..cb7887e 100644
--- a/Services/ChatService.cs
+++ b/Services/ChatService.cs
@@ -120,7 +120,8 @@ public class ChatService
             SystemPrompt = systemPromptText,
             ToolChoice = toolChoice,
             ToolNames = toolNames,
-            PlanMode = planMode
+            PlanMode = planMode,
+            Effort = OpenAiService.IsOpenAiProvider(modelId) ? "" : agent.Effort
         });
 
         await _db.UpdateSessionTimestamp(sessionId);
diff --git a/Services/DatabaseService.Sessions.cs b/Services/DatabaseService.Sessions.cs
index 080d657..52154ae 100644
--- a/Services/DatabaseService.Sessions.cs
+++ b/Services/DatabaseService.Sessions.cs
@@ -220,8 +220,8 @@ public partial class DatabaseService
         using var conn = CreateConnection();
         chain.CreatedAt = DateTime.UtcNow.ToString("o");
         await conn.ExecuteAsync(@"
-            INSERT INTO chains (chain_id, session_id, archive_id, agent_id, model, system_prompt, tool_choice, tool_names, input_tokens, output_tokens, iterations, stop_reason, duration_ms, plan_mode, created_at)
-            VALUES (@ChainId, @SessionId, @ArchiveId, @AgentId, @Model, @SystemPrompt, @ToolChoice, @ToolNames, @InputTokens, @OutputTokens, @Iterations, @StopReason, @DurationMs, @PlanMode, @CreatedAt)
+            INSERT INTO chains (chain_id, session_id, archive_id, agent_id, model, system_prompt, tool_choice, tool_names, input_tokens, output_tokens, iterations, stop_reason, duration_ms, plan_mode, effort, created_at)
+            VALUES (@ChainId, @SessionId, @ArchiveId, @AgentId, @Model, @SystemPrompt, @ToolChoice, @ToolNames, @InputTokens, @OutputTokens, @Iterations, @StopReason, @DurationMs, @PlanMode, @Effort, @CreatedAt)
         ", chain);
     }
 
diff --git a/Services/DatabaseService.cs b/Services/DatabaseService.cs
index 027efe3..0c06b67 100644
--- a/Services/DatabaseService.cs
+++ b/Services/DatabaseService.cs
@@ -197,6 +197,7 @@ public partial class DatabaseService
         TryAddColumn(conn, "sessions", "unity_mcp_token", "TEXT");
         TryAddColumn(conn, "messages", "tag", "TEXT");
         TryAddColumn(conn, "agents", "effort", "TEXT NOT NULL DEFAULT ''");
+        TryAddColumn(conn, "chains", "effort", "TEXT NOT NULL DEFAULT ''");
 
         // Migration: 1M-Suffix entfernen (Mai 2026). Seit März 2026 ist 1M-Context Default
         // bei Opus 4.6/4.7/4.8 + Sonnet 4.6 – kein "[1m]"-Suffix mehr nötig.
diff --git a/wwwroot/js/chat.js b/wwwroot/js/chat.js
index 05354d6..89f599c 100644
--- a/wwwroot/js/chat.js
+++ b/wwwroot/js/chat.js
@@ -4,6 +4,7 @@ function buildMetaBadges(d) {
   const badges = [];
   if (d.planMode) badges.push('📋 Plan-Modus');
   badges.push(prettyModelName(d.model));
+  if (d.effort) badges.push('Effort: ' + d.effort);
   badges.push('Tokens: ' + (d.inputTokens || 0) + ' / ' + (d.outputTokens || 0));
   if (d.cacheCreationTokens > 0 || d.cacheReadTokens > 0) {
     badges.push('Cache: ' + (d.cacheReadTokens || 0) + ' / ' + (d.cacheCreationTokens || 0));