diff --git a/internal/translator/codex/claude/codex_claude_response.go b/internal/translator/codex/claude/codex_claude_response.go
index 5223cd94..238d3e24 100644
--- a/internal/translator/codex/claude/codex_claude_response.go
+++ b/internal/translator/codex/claude/codex_claude_response.go
@@ -112,7 +112,10 @@ func ConvertCodexResponseToClaude(_ context.Context, _ string, originalRequestRa
 	} else if typeStr == "response.completed" {
 		template = `{"type":"message_delta","delta":{"stop_reason":"tool_use","stop_sequence":null},"usage":{"input_tokens":0,"output_tokens":0}}`
 		p := (*param).(*ConvertCodexResponseToClaudeParams).HasToolCall
-		if p {
+		stopReason := rootResult.Get("response.stop_reason").String()
+		if stopReason != "" {
+			template, _ = sjson.Set(template, "delta.stop_reason", stopReason)
+		} else if p {
 			template, _ = sjson.Set(template, "delta.stop_reason", "tool_use")
 		} else {
 			template, _ = sjson.Set(template, "delta.stop_reason", "end_turn")
diff --git a/internal/translator/gemini-cli/claude/gemini-cli_claude_response.go b/internal/translator/gemini-cli/claude/gemini-cli_claude_response.go
index 2f8e9548..1126f1ee 100644
--- a/internal/translator/gemini-cli/claude/gemini-cli_claude_response.go
+++ b/internal/translator/gemini-cli/claude/gemini-cli_claude_response.go
@@ -244,6 +244,8 @@ func ConvertGeminiCLIResponseToClaude(_ context.Context, _ string, originalReque
 				// Set tool_use stop reason if tools were used in this response
 				if usedTool {
 					template = `{"type":"message_delta","delta":{"stop_reason":"tool_use","stop_sequence":null},"usage":{"input_tokens":0,"output_tokens":0}}`
+				} else if finish := gjson.GetBytes(rawJSON, "response.candidates.0.finishReason"); finish.Exists() && finish.String() == "MAX_TOKENS" {
+					template = `{"type":"message_delta","delta":{"stop_reason":"max_tokens","stop_sequence":null},"usage":{"input_tokens":0,"output_tokens":0}}`
 				}
 
 				// Include thinking tokens in output token count if present
diff --git a/internal/translator/gemini/claude/gemini_claude_response.go b/internal/translator/gemini/claude/gemini_claude_response.go
index db14c78a..cfc06921 100644
--- a/internal/translator/gemini/claude/gemini_claude_response.go
+++ b/internal/translator/gemini/claude/gemini_claude_response.go
@@ -251,6 +251,8 @@ func ConvertGeminiResponseToClaude(_ context.Context, _ string, originalRequestR
 				template := `{"type":"message_delta","delta":{"stop_reason":"end_turn","stop_sequence":null},"usage":{"input_tokens":0,"output_tokens":0}}`
 				if usedTool {
 					template = `{"type":"message_delta","delta":{"stop_reason":"tool_use","stop_sequence":null},"usage":{"input_tokens":0,"output_tokens":0}}`
+				} else if finish := gjson.GetBytes(rawJSON, "candidates.0.finishReason"); finish.Exists() && finish.String() == "MAX_TOKENS" {
+					template = `{"type":"message_delta","delta":{"stop_reason":"max_tokens","stop_sequence":null},"usage":{"input_tokens":0,"output_tokens":0}}`
 				}
 
 				thoughtsTokenCount := usageResult.Get("thoughtsTokenCount").Int()