diff --git a/client/tts.go b/client/tts.go
index 28c33ec..aa44e4b 100644
--- a/client/tts.go
+++ b/client/tts.go
@@ -13,11 +13,12 @@ import (
 	"github.com/taigrr/elevenlabs/client/types"
 )
 
-func (c Client) TTSWriter(ctx context.Context, w io.Writer, text, voiceID string, options types.SynthesisOptions) error {
+func (c Client) TTSWriter(ctx context.Context, w io.Writer, text, modelID, voiceID string, options types.SynthesisOptions) error {
 	options.Clamp()
 	url := fmt.Sprintf(c.endpoint+"/v1/text-to-speech/%s", voiceID)
 	opts := types.TTS{
 		Text:          text,
+		ModelID:       modelID,
 		VoiceSettings: options,
 	}
 	b, _ := json.Marshal(opts)
@@ -56,12 +57,13 @@ func (c Client) TTSWriter(ctx context.Context, w io.Writer, text, voiceID string
 	}
 }
 
-func (c Client) TTS(ctx context.Context, text, voiceID string, options types.SynthesisOptions) ([]byte, error) {
+func (c Client) TTS(ctx context.Context, text, voiceID, modelID string, options types.SynthesisOptions) ([]byte, error) {
 	options.Clamp()
 	url := fmt.Sprintf(c.endpoint+"/v1/text-to-speech/%s", voiceID)
 	client := &http.Client{}
 	opts := types.TTS{
 		Text:          text,
+		ModelID:       modelID,
 		VoiceSettings: options,
 	}
 	b, _ := json.Marshal(opts)
diff --git a/client/types/types.go b/client/types/types.go
index 802477e..85e90ac 100644
--- a/client/types/types.go
+++ b/client/types/types.go
@@ -19,6 +19,7 @@ type Voice struct {
 	Labels      string     `json:"labels,omitempty"`      // Serialized labels dictionary for the voice.
 }
 type TTS struct {
+	ModelID       string           `json:"model_id"`
 	Text          string           `json:"text"`                     // The text that will get converted into speech. Currently only English text is supported.
 	VoiceSettings SynthesisOptions `json:"voice_settings,omitempty"` // Voice settings are applied only on the given TTS request.
 }
@@ -103,6 +104,22 @@ type LanguageResponseModel struct {
 	IsoCode     string `json:"iso_code"`
 	DisplayName string `json:"display_name"`
 }
+
+type Language struct {
+	LanguageID string `json:"language_id"`
+	Name       string `json:"name"`
+}
+
+type ModelResponseModel struct {
+	ModelID              string     `json:"model_id"`
+	Name                 string     `json:"name"`
+	Description          string     `json:"description"`
+	CanBeFinetuned       bool       `json:"can_be_finetuned"`
+	CanDoTextToSpeech    bool       `json:"can_do_text_to_speech"`
+	CanDoVoiceConversion bool       `json:"can_do_voice_conversion"`
+	TokenCostFactor      float64    `json:"token_cost_factor"`
+	Languages            []Language `json:"languages"`
+}
 type RecordingResponseModel struct {
 	RecordingID    string `json:"recording_id"`
 	MimeType       string `json:"mime_type"`