diff --git a/config/sample.cfg.yaml b/config/sample.cfg.yaml
index fd98de5..512afd9 100644
--- a/config/sample.cfg.yaml
+++ b/config/sample.cfg.yaml
@@ -13,6 +13,6 @@
       userId: $USERID
       apiKey: $APIKEY
     - provider: openai
-      modelId: chatgpt-3.5-turbo
+      modelId: gpt-3.5-turbo
       url: https://api.openai.com
       apiKey: $APIKEY
diff --git a/pkg/api/types.go b/pkg/api/types.go
index a8a0ba7..ec5e0c0 100644
--- a/pkg/api/types.go
+++ b/pkg/api/types.go
@@ -8,7 +8,7 @@ type Model interface {
 type ModelInput struct {
 	UserId         string `json:"userid"`
 	APIKey         string `json:"apikey"`
-	ModelId        string `json:"modelid"`
+	ModelId        string `json:"modelId"`
 	Provider       string `json:"provider"`
 	Prompt         string `json:"prompt"`
 	Context        string `json:"context"`
@@ -18,10 +18,11 @@ type ModelInput struct {
 type ModelResponse struct {
 	Input          string `json:"input_tokens"`
 	Status         string `json:"status"`
-	RequestID      string `json:"request_id"`
-	ConversationID string `json:"conversation_id"`
+	RequestID      string `json:"requestId"`
+	ConversationID string `json:"conversationId"`
 	Output         string `json:"output"`
 	RawOutput      string `json:"raw_output"`
+	ErrorMessage   string `json:"error"`
 }
 
 // FeedbackPayload represents the payload for the feedback endpoint.
diff --git a/pkg/filters/filters.go b/pkg/filters/filters.go
index 7425d61..6d95d4a 100644
--- a/pkg/filters/filters.go
+++ b/pkg/filters/filters.go
@@ -1,9 +1,9 @@
 package filters
 
 import (
-	"gopkg.in/yaml.v2"
-
 	"github.com/openshift/wisdom/pkg/api"
+	"github.com/openshift/wisdom/pkg/filters/markdown"
+	"github.com/openshift/wisdom/pkg/filters/yaml"
 )
 
 type Filter struct {
@@ -15,7 +15,7 @@ type ResponseFilter func(response *api.ModelResponse) (*api.ModelResponse, error
 
 func NewFilter() Filter {
 	filter := Filter{}
-	//filter.responseFilterChain = append(filter.responseFilterChain, YamlLinter)
+	filter.responseFilterChain = append(filter.responseFilterChain, markdown.MarkdownStripper, yaml.YamlLinter)
 	return filter
 }
 
@@ -42,13 +42,3 @@ func (f *Filter) FilterResponse(response *api.ModelResponse) (*api.ModelResponse
 	}
 	return output, err
 }
-
-func YamlLinter(response *api.ModelResponse) (*api.ModelResponse, error) {
-	return response, isValidYAML(response.Output)
-}
-
-func isValidYAML(yamlString string) error {
-	var data interface{}
-	err := yaml.Unmarshal([]byte(yamlString), &data)
-	return err
-}
diff --git a/pkg/filters/markdown/markdown.go b/pkg/filters/markdown/markdown.go
new file mode 100644
index 0000000..dc41e95
--- /dev/null
+++ b/pkg/filters/markdown/markdown.go
@@ -0,0 +1,41 @@
+package markdown
+
+import (
+	"fmt"
+	"regexp"
+
+	//gomarkdown "github.com/gomarkdown/markdown"
+	log "github.com/sirupsen/logrus"
+
+	"github.com/openshift/wisdom/pkg/api"
+)
+
+var (
+	markdownRegex = regexp.MustCompile("(?s)`{3}.*?\n(.*)`{3}")
+)
+
+func MarkdownStripper(response *api.ModelResponse) (*api.ModelResponse, error) {
+
+	if response.Output == "" {
+		return response, fmt.Errorf("response output is empty")
+	}
+	log.Debugf("Stripping markdown from response:\n %s\n", response.Output)
+
+	//response.Output = markdownRegex.ReplaceAllString(response.Output, "")
+	matches := markdownRegex.FindStringSubmatch(response.Output)
+	response.Output = matches[1]
+	/*
+		node := gomarkdown.Parse([]byte(response.Output), nil)
+
+		fmt.Printf("%#v\n", node.GetChildren()[0].GetChildren()[0])
+		//fmt.Printf("%#v\n", node.GetChildren()[0].GetChildren()[1])
+		//fmt.Printf("%s\n", node.GetChildren()[0].GetChildren()[1].AsLeaf().Literal)
+
+		response.Output = string(node.GetChildren()[0].GetChildren()[0].AsLeaf().Literal)
+	*/
+
+	//response.Output = stripmd.Strip(response.Output)
+
+	log.Debugf("Stripped markdown from response:\n %s\n", response.Output)
+	return response, nil
+}
diff --git a/pkg/filters/yaml/yaml.go b/pkg/filters/yaml/yaml.go
new file mode 100644
index 0000000..805b0e0
--- /dev/null
+++ b/pkg/filters/yaml/yaml.go
@@ -0,0 +1,27 @@
+package yaml
+
+import (
+	"fmt"
+
+	"gopkg.in/yaml.v2"
+
+	log "github.com/sirupsen/logrus"
+
+	"github.com/openshift/wisdom/pkg/api"
+)
+
+func YamlLinter(response *api.ModelResponse) (*api.ModelResponse, error) {
+	if err := isValidYAML(response.Output); err != nil {
+		return response, fmt.Errorf("response output is not valid YAML: %s", err)
+	}
+	return response, nil
+}
+
+func isValidYAML(yamlString string) error {
+	var data interface{}
+
+	log.Debugf("Validating YAML:\n%s\n", yamlString)
+	err := yaml.Unmarshal([]byte(yamlString), &data)
+
+	return err
+}
diff --git a/pkg/model/invoker.go b/pkg/model/invoker.go
index 17f5374..9a258dd 100644
--- a/pkg/model/invoker.go
+++ b/pkg/model/invoker.go
@@ -8,9 +8,16 @@ import (
 func InvokeModel(input api.ModelInput, model api.Model, filter filters.Filter) (*api.ModelResponse, error) {
 
 	response, err := model.Invoke(input)
+	if response == nil {
+		response = &api.ModelResponse{}
+	}
 	if err != nil {
+		response.ErrorMessage = err.Error()
 		return response, err
 	}
 	output, err := filter.FilterResponse(response)
+	if err != nil {
+		response.ErrorMessage = err.Error()
+	}
 	return output, err
 }
diff --git a/pkg/model/openai/model_openai.go b/pkg/model/openai/model_openai.go
index 8d2e779..8324af3 100644
--- a/pkg/model/openai/model_openai.go
+++ b/pkg/model/openai/model_openai.go
@@ -111,5 +111,6 @@ func (m *OpenAIModel) Invoke(input api.ModelInput) (*api.ModelResponse, error) {
 	response := api.ModelResponse{}
 	response.Input = input.Prompt
 	response.Output = apiResp.Choices[0].Message.Content
+	response.RawOutput = apiResp.Choices[0].Message.Content
 	return &response, err
 }
diff --git a/pkg/server/inference_handler.go b/pkg/server/inference_handler.go
index 83c62cd..a7c0f8f 100644
--- a/pkg/server/inference_handler.go
+++ b/pkg/server/inference_handler.go
@@ -36,21 +36,22 @@ func (h *Handler) InferHandler(w http.ResponseWriter, r *http.Request) {
 		return
 	}
 	response, err := model.InvokeModel(payload, m, h.Filter)
-	if err != nil {
-		w.WriteHeader(http.StatusExpectationFailed)
-		w.Write([]byte(err.Error()))
-		return
-	}
 
 	buf := bytes.Buffer{}
-	err = json.NewEncoder(&buf).Encode(response)
-	if err != nil {
-		w.WriteHeader(http.StatusExpectationFailed)
-		w.Write([]byte(err.Error()))
-		return
+	if response != nil {
+		err = json.NewEncoder(&buf).Encode(response)
+		if err != nil {
+			w.WriteHeader(http.StatusExpectationFailed)
+			w.Write([]byte(err.Error()))
+			return
+		}
 	}
 
 	w.Header().Set("Content-Type", "text/json")
-	w.WriteHeader(http.StatusOK)
+	if err != nil || (response != nil && response.ErrorMessage != "") {
+		w.WriteHeader(http.StatusExpectationFailed)
+	} else {
+		w.WriteHeader(http.StatusOK)
+	}
 	w.Write(buf.Bytes())
 }