feat: add support for aws's cross region inferences

closes #2024, closes #2145

relay/adaptor/anthropic/main.go

@@ -6,16 +6,17 @@ import (
 	"encoding/json"
 	"fmt"
 	"io"
+	"math"
 	"net/http"
 	"strings"
 
-	"github.com/songquanpeng/one-api/common/render"
-
 	"github.com/gin-gonic/gin"
+	"github.com/pkg/errors"
 	"github.com/songquanpeng/one-api/common"
 	"github.com/songquanpeng/one-api/common/helper"
 	"github.com/songquanpeng/one-api/common/image"
 	"github.com/songquanpeng/one-api/common/logger"
+	"github.com/songquanpeng/one-api/common/render"
 	"github.com/songquanpeng/one-api/relay/adaptor/openai"
 	"github.com/songquanpeng/one-api/relay/model"
 )
@@ -38,7 +39,16 @@ func stopReasonClaude2OpenAI(reason *string) string {
 	}
 }
 
-func ConvertRequest(textRequest model.GeneralOpenAIRequest) *Request {
+// isModelSupportThinking is used to check if the model supports extended thinking
+func isModelSupportThinking(model string) bool {
+	if strings.Contains(model, "claude-3-7-sonnet") {
+		return true
+	}
+
+	return false
+}
+
+func ConvertRequest(c *gin.Context, textRequest model.GeneralOpenAIRequest) (*Request, error) {
 	claudeTools := make([]Tool, 0, len(textRequest.Tools))
 
 	for _, tool := range textRequest.Tools {
@@ -65,6 +75,25 @@ func ConvertRequest(textRequest model.GeneralOpenAIRequest) *Request {
 		Tools:       claudeTools,
 		Thinking:    textRequest.Thinking,
 	}
+
+	if isModelSupportThinking(textRequest.Model) &&
+		c.Request.URL.Query().Has("thinking") && claudeRequest.Thinking == nil {
+		claudeRequest.Thinking = &model.Thinking{
+			Type:         "enabled",
+			BudgetTokens: int(math.Min(1024, float64(claudeRequest.MaxTokens/2))),
+		}
+	}
+
+	if isModelSupportThinking(textRequest.Model) &&
+		claudeRequest.Thinking != nil {
+		if claudeRequest.MaxTokens <= 1024 {
+			return nil, errors.New("max_tokens must be greater than 1024 when using extended thinking")
+		}
+
+		// top_p must be nil when using extended thinking
+		claudeRequest.TopP = nil
+	}
+
 	if len(claudeTools) > 0 {
 		claudeToolChoice := struct {
 			Type string `json:"type"`
@@ -145,7 +174,7 @@ func ConvertRequest(textRequest model.GeneralOpenAIRequest) *Request {
 		claudeMessage.Content = contents
 		claudeRequest.Messages = append(claudeRequest.Messages, claudeMessage)
 	}
-	return &claudeRequest
+	return &claudeRequest, nil
 }
 
 // https://docs.anthropic.com/claude/reference/messages-streaming