diff --git a/relay/model/general.go b/relay/model/general.go
index 5354694c..57a5b0b6 100644
--- a/relay/model/general.go
+++ b/relay/model/general.go
@@ -34,6 +34,8 @@ type GeneralOpenAIRequest struct {
 	MaxTokens           int       `json:"max_tokens,omitempty"`
 	MaxCompletionTokens *int      `json:"max_completion_tokens,omitempty"`
 	N                   int       `json:"n,omitempty"`
+	// ReasoningEffort constrains effort on reasoning for reasoning models, o1 models only.
+	ReasoningEffort string `json:"reasoning_effort,omitempty" binding:"omitempty,oneof=low medium high"`
 	// Modalities currently the model only programmatically allows modalities = [“text”, “audio”]
 	Modalities       []string        `json:"modalities,omitempty"`
 	Prediction       any             `json:"prediction,omitempty"`
diff --git a/relay/model/message.go b/relay/model/message.go
index 48ddb3ad..86ee57b3 100644
--- a/relay/model/message.go
+++ b/relay/model/message.go
@@ -9,11 +9,12 @@ import (
 type Message struct {
 	Role string `json:"role,omitempty"`
 	// Content is a string or a list of objects
-	Content    any           `json:"content,omitempty"`
-	Name       *string       `json:"name,omitempty"`
-	ToolCalls  []Tool        `json:"tool_calls,omitempty"`
-	ToolCallId string        `json:"tool_call_id,omitempty"`
-	Audio      *messageAudio `json:"audio,omitempty"`
+	Content          any           `json:"content,omitempty"`
+	ReasoningContent string        `json:"reasoning_content,omitempty"`
+	Name             *string       `json:"name,omitempty"`
+	ToolCalls        []Tool        `json:"tool_calls,omitempty"`
+	ToolCallId       string        `json:"tool_call_id,omitempty"`
+	Audio            *messageAudio `json:"audio,omitempty"`
 }
 
 type messageAudio struct {