diff --git a/pkg/models/users.go b/pkg/models/users.go
index 71b6e26..5586003 100755
--- a/pkg/models/users.go
+++ b/pkg/models/users.go
@@ -30,6 +30,7 @@ type Users struct {
 	NumeroMedidor    string `json:"numero_medidor" gorm:"numero_medidor"`
 	TelefonoFijo     string `json:"telefono_fijo" gorm:"telefono_fijo"`
 	Celular          string `json:"celular" gorm:"celular"`
+	TelegramChatID   string `json:"telegram_chat_id" gorm:"column:telegram_chat_id"`
 	AceptoInfo       bool   `json:"acepto_info" gorm:"acepto_info"`
 }
 
@@ -103,16 +104,15 @@ func CreateUser(User Users) error {
 }
 
 // UpdateUser updates an existing user
-func UpdateUser(userID uint, Name string, NombreUsuario string, Email string, RoleID int) error {
-	// Crea un mapa con los campos a actualizar
+func UpdateUser(userID uint, Name string, NombreUsuario string, Email string, RoleID int, TelegramChatID string) error {
 	updates := map[string]interface{}{
-		"name":           Name,
-		"nombre_usuario": NombreUsuario,
-		"email":          Email,
-		"role_id":        RoleID,
+		"name":             Name,
+		"nombre_usuario":   NombreUsuario,
+		"email":            Email,
+		"role_id":          RoleID,
+		"telegram_chat_id": TelegramChatID,
 	}
 
-	// Realiza la actualización de los campos en la base de datos
 	if err := app.Http.Database.DB.Model(&Users{}).Where("id = ?", userID).Updates(updates).Error; err != nil {
 		return err
 	}
diff --git a/rest/controllers/api/ia_controller.go b/rest/controllers/api/ia_controller.go
index ae34a22..b5f1c55 100644
--- a/rest/controllers/api/ia_controller.go
+++ b/rest/controllers/api/ia_controller.go
@@ -27,6 +27,28 @@ type respuestaOllama struct {
 	Error    string `json:"error"`
 }
 
+type openaiChatMsg struct {
+	Role    string `json:"role"`
+	Content string `json:"content"`
+}
+
+type openaiChatReq struct {
+	Model    string          `json:"model"`
+	Messages []openaiChatMsg `json:"messages"`
+	Stream   bool            `json:"stream"`
+}
+
+type openaiChatChoice struct {
+	Delta struct {
+		Content string `json:"content"`
+	} `json:"delta"`
+	FinishReason *string `json:"finish_reason"`
+}
+
+type openaiChatResp struct {
+	Choices []openaiChatChoice `json:"choices"`
+}
+
 func GeneraTextoStream(c *fiber.Ctx) error {
 	var data DataIa
 	if err := c.BodyParser(&data); err != nil {
@@ -34,16 +56,13 @@ func GeneraTextoStream(c *fiber.Ctx) error {
 	}
 	data.Stream = true
 
-	hasDBConfig := true
 	config, err := models.GetAiConfigForService("ia")
 	if err != nil {
-		hasDBConfig = false
-		config = &models.AiConfig{
-			BaseURL:   "http://72.60.24.97:8080/ollama",
-			ApiKey:    "",
-			ModelName: "gemma3:1b",
-		}
+		return c.Status(fiber.StatusServiceUnavailable).JSON(fiber.Map{
+			"error": "No hay configuración de IA activa. Configura una en /app/ai-config",
+		})
 	}
+
 	if data.Model == "" {
 		data.Model = config.ModelName
 	}
@@ -51,37 +70,64 @@ func GeneraTextoStream(c *fiber.Ctx) error {
 		data.Model = "gemma3:1b"
 	}
 
-	baseURL := strings.TrimSuffix(strings.TrimRight(config.BaseURL, "/"), "/v1")
-	endpoint := baseURL + "/api/generate"
+	provider := strings.ToLower(config.Provider)
+	baseURL := strings.TrimRight(config.BaseURL, "/")
+	hasV1 := strings.Contains(baseURL, "/v1")
 
-	if !hasDBConfig {
-		log.Printf("[IA] Usando config default: endpoint=%s model=%s", endpoint, data.Model)
+	var endpoint string
+	var bodyReader io.Reader
+	useOpenAI := provider != "ollama" || hasV1
+
+	// OpenAI-compatible (openai, anthropic, qwen, o llameo con /v1)
+	if !useOpenAI {
+		// Native Ollama API
+		endpoint = baseURL + "/api/generate"
+		jsonData, _ := json.Marshal(data)
+		bodyReader = bytes.NewBuffer(jsonData)
 	} else {
-		log.Printf("[IA] Usando config BD: endpoint=%s model=%s", endpoint, data.Model)
+		// OpenAI-compatible (/v1/chat/completions)
+		baseURL = strings.TrimSuffix(baseURL, "/v1")
+		endpoint = baseURL + "/v1/chat/completions"
+		chatReq := openaiChatReq{
+			Model: data.Model,
+			Messages: []openaiChatMsg{
+				{Role: "user", Content: data.Prompt},
+			},
+			Stream: true,
+		}
+		jsonData, _ := json.Marshal(chatReq)
+		bodyReader = bytes.NewBuffer(jsonData)
 	}
 
-	jsonData, _ := json.Marshal(data)
-	req, err := http.NewRequest("POST", endpoint, bytes.NewBuffer(jsonData))
+	log.Printf("[IA] endpoint=%s model=%s provider=%s", endpoint, data.Model, provider)
+
+	req, err := http.NewRequest("POST", endpoint, bodyReader)
 	if err != nil {
 		return err
 	}
 	req.Header.Set("Content-Type", "application/json")
-	if config.ApiKey != "" && config.ApiKey != "ollama" {
+
+	// Auth
+	if provider == "ollama" && config.ApiKey != "" && config.ApiKey != "ollama" {
 		req.SetBasicAuth("ollama", config.ApiKey)
+	} else if config.ApiKey != "" {
+		req.Header.Set("Authorization", "Bearer "+config.ApiKey)
 	}
 
 	client := &http.Client{Timeout: 120 * time.Second}
 	resp, err := client.Do(req)
 	if err != nil {
-		log.Printf("[IA] Error conectando a Ollama: %v", err)
-		return c.Status(fiber.StatusBadGateway).JSON(fiber.Map{"error": err.Error()})
+		log.Printf("[IA] Error conectando: %v", err)
+		return c.Status(fiber.StatusBadGateway).JSON(fiber.Map{
+			"error": fmt.Sprintf("Error conectando a %s: %v", provider, err),
+		})
 	}
 	if resp.StatusCode != http.StatusOK {
 		bodyBytes, _ := io.ReadAll(resp.Body)
 		resp.Body.Close()
-		log.Printf("[IA] Ollama status %d: %s", resp.StatusCode, string(bodyBytes))
+		log.Printf("[IA] %s status %d: %s", provider, resp.StatusCode, string(bodyBytes))
 		return c.Status(fiber.StatusBadGateway).JSON(fiber.Map{
-			"error":   fmt.Sprintf("Ollama respondió con status %d", resp.StatusCode),
+			"error":   fmt.Sprintf("%s respondió con status %d", provider, resp.StatusCode),
 			"details": string(bodyBytes),
 		})
 	}
@@ -94,25 +140,46 @@ func GeneraTextoStream(c *fiber.Ctx) error {
 		defer resp.Body.Close()
 		dec := json.NewDecoder(resp.Body)
 		for {
-			var msg respuestaOllama
-			if err := dec.Decode(&msg); err != nil {
-				if err != io.EOF {
-					log.Printf("[IA] Error decodificando: %v", err)
+			if useOpenAI {
+				var msg openaiChatResp
+				if err := dec.Decode(&msg); err != nil {
+					if err != io.EOF {
+						log.Printf("[IA] Error decodificando respuesta OpenAI: %v", err)
+					}
+					break
+				}
+				if len(msg.Choices) == 0 {
+					continue
+				}
+				content := msg.Choices[0].Delta.Content
+				if content != "" {
+					fmt.Fprint(w, content)
+					w.Flush()
+				}
+				if msg.Choices[0].FinishReason != nil {
+					break
+				}
+			} else {
+				var msg respuestaOllama
+				if err := dec.Decode(&msg); err != nil {
+					if err != io.EOF {
+						log.Printf("[IA] Error decodificando respuesta Ollama: %v", err)
+					}
+					break
+				}
+				if msg.Error != "" {
+					log.Printf("[IA] Ollama error: %s", msg.Error)
+					fmt.Fprintf(w, "[Error: %s]", msg.Error)
+					w.Flush()
+					break
+				}
+				if msg.Response != "" {
+					fmt.Fprint(w, msg.Response)
+					w.Flush()
+				}
+				if msg.Done {
+					break
 				}
-				break
-			}
-			if msg.Error != "" {
-				log.Printf("[IA] Ollama error: %s", msg.Error)
-				fmt.Fprintf(w, "[Error: %s]", msg.Error)
-				w.Flush()
-				break
-			}
-			if msg.Response != "" {
-				fmt.Fprint(w, msg.Response)
-				w.Flush()
-			}
-			if msg.Done {
-				break
 			}
 		}
 	})
diff --git a/rest/controllers/users_controller.go b/rest/controllers/users_controller.go
index 1274e5e..e1de706 100755
--- a/rest/controllers/users_controller.go
+++ b/rest/controllers/users_controller.go
@@ -240,8 +240,10 @@ func UpdateUser(c *fiber.Ctx) error {
 		updates["role_id"] = m.RoleID
 	}
 
+	updates["telegram_chat_id"] = m.TelegramChatID
+
 	// Realiza la actualización de los campos seleccionados
-	if err := models.UpdateUser(m.ID, m.Name, m.NombreUsuario, m.Email, int(m.RoleID)); err != nil {
+	if err := models.UpdateUser(m.ID, m.Name, m.NombreUsuario, m.Email, int(m.RoleID), m.TelegramChatID); err != nil {
 		return c.Status(fiber.StatusInternalServerError).JSON(fiber.Map{
 			"message": err.Error(),
 			"error":   true,