feat: Enhance GetCompletionRatio function

setting/operation_setting/model-ratio.go

@@ -375,6 +375,17 @@ func GetCompletionRatio(name string) float64 {
 			return ratio
 		}
 	}
+	hardCodedRatio, contain := getHardcodedCompletionModelRatio(name)
+	if contain {
+		return hardCodedRatio
+	}
+	if ratio, ok := CompletionRatio[name]; ok {
+		return ratio
+	}
+	return hardCodedRatio
+}
+
+func getHardcodedCompletionModelRatio(name string) (float64, bool) {
 	lowercaseName := strings.ToLower(name)
 	if strings.HasPrefix(name, "gpt-4-gizmo") {
 		name = "gpt-4-gizmo-*"
@@ -385,87 +396,85 @@ func GetCompletionRatio(name string) float64 {
 	if strings.HasPrefix(name, "gpt-4") && !strings.HasSuffix(name, "-all") && !strings.HasSuffix(name, "-gizmo-*") {
 		if strings.HasPrefix(name, "gpt-4o") {
 			if name == "gpt-4o-2024-05-13" {
-				return 3
+				return 3, true
 			}
-			return 4
+			return 4, true
 		}
-		if strings.HasPrefix(name, "gpt-4.5") {
-			return 2
+		if strings.HasPrefix(name, "gpt-4.5") && strings.HasSuffix(name, "preview") {
+			return 2, true
 		}
 		if strings.HasPrefix(name, "gpt-4-turbo") || (strings.HasPrefix(name, "gpt-4-") && strings.HasSuffix(name, "preview")) {
-			return 3
+			return 3, true
 		}
-		return 2
+		// 没有特殊标记的 gpt-4 模型默认倍率为 2
+		return 2, false
 	}
 	if strings.HasPrefix(name, "o1") || strings.HasPrefix(name, "o3") {
-		return 4
+		return 4, true
 	}
 	if name == "chatgpt-4o-latest" {
-		return 3
+		return 3, true
 	}
 	if strings.Contains(name, "claude-instant-1") {
-		return 3
+		return 3, true
 	} else if strings.Contains(name, "claude-2") {
-		return 3
+		return 3, true
 	} else if strings.Contains(name, "claude-3") {
-		return 5
+		return 5, true
 	}
 	if strings.HasPrefix(name, "gpt-3.5") {
 		if name == "gpt-3.5-turbo" || strings.HasSuffix(name, "0125") {
 			// https://openai.com/blog/new-embedding-models-and-api-updates
 			// Updated GPT-3.5 Turbo model and lower pricing
-			return 3
+			return 3, true
 		}
 		if strings.HasSuffix(name, "1106") {
-			return 2
+			return 2, true
 		}
-		return 4.0 / 3.0
+		return 4.0 / 3.0, true
 	}
 	if strings.HasPrefix(name, "mistral-") {
-		return 3
+		return 3, true
 	}
 	if strings.HasPrefix(name, "gemini-") {
-		return 4
+		return 4, true
 	}
 	if strings.HasPrefix(name, "command") {
 		switch name {
 		case "command-r":
-			return 3
+			return 3, true
 		case "command-r-plus":
-			return 5
+			return 5, true
 		case "command-r-08-2024":
-			return 4
+			return 4, true
 		case "command-r-plus-08-2024":
-			return 4
+			return 4, true
 		default:
-			return 4
+			return 4, true
 		}
 	}
 	// hint 只给官方上4倍率，由于开源模型供应商自行定价，不对其进行补全倍率进行强制对齐
 	if lowercaseName == "deepseek-chat" || lowercaseName == "deepseek-reasoner" {
-		return 4
+		return 4, true
 	}
 	if strings.HasPrefix(name, "ERNIE-Speed-") {
-		return 2
+		return 2, true
 	} else if strings.HasPrefix(name, "ERNIE-Lite-") {
-		return 2
+		return 2, true
 	} else if strings.HasPrefix(name, "ERNIE-Character") {
-		return 2
+		return 2, true
 	} else if strings.HasPrefix(name, "ERNIE-Functions") {
-		return 2
+		return 2, true
 	}
 	switch name {
 	case "llama2-70b-4096":
-		return 0.8 / 0.64
+		return 0.8 / 0.64, true
 	case "llama3-8b-8192":
-		return 2
+		return 2, true
 	case "llama3-70b-8192":
-		return 0.79 / 0.59
-	}
-	if ratio, ok := CompletionRatio[name]; ok {
-		return ratio
+		return 0.79 / 0.59, true
 	}
-	return 1
+	return 1, false
 }
 
 func GetAudioRatio(name string) float64 {