diff --git a/llama/runner/runner.go b/llama/runner/runner.go
index 264252b2..1491de3e 100644
--- a/llama/runner/runner.go
+++ b/llama/runner/runner.go
@@ -330,13 +330,35 @@ func (s *Server) run(ctx context.Context) {
 	}
 }
 
+type Options struct {
+	api.Runner
+
+	NumKeep          int      `json:"n_keep"`
+	Seed             int      `json:"seed"`
+	NumPredict       int      `json:"n_predict"`
+	TopK             int      `json:"top_k"`
+	TopP             float32  `json:"top_p"`
+	MinP             float32  `json:"min_p"`
+	TFSZ             float32  `json:"tfs_z"`
+	TypicalP         float32  `json:"typical_p"`
+	RepeatLastN      int      `json:"repeat_last_n"`
+	Temperature      float32  `json:"temperature"`
+	RepeatPenalty    float32  `json:"repeat_penalty"`
+	PresencePenalty  float32  `json:"presence_penalty"`
+	FrequencyPenalty float32  `json:"frequency_penalty"`
+	Mirostat         int      `json:"mirostat"`
+	MirostatTau      float32  `json:"mirostat_tau"`
+	MirostatEta      float32  `json:"mirostat_eta"`
+	PenalizeNewline  bool     `json:"penalize_nl"`
+	Stop             []string `json:"stop"`
+}
+
 type CompletionRequest struct {
 	Prompt  string   `json:"prompt"`
 	Images  []string `json:"images"`
 	Grammar string   `json:"grammar"`
-	Stop    []string `json:"stop"`
 
-	api.Options
+	Options
 }
 
 type Timings struct {
@@ -363,7 +385,7 @@ type CompletionResponse struct {
 
 func (s *Server) completion(w http.ResponseWriter, r *http.Request) {
 	var req CompletionRequest
-	req.Options = api.DefaultOptions()
+	req.Options = Options(api.DefaultOptions())
 	if err := json.NewDecoder(r.Body).Decode(&req); err != nil {
 		http.Error(w, "Bad request", http.StatusBadRequest)
 		return