diff --git a/koboldcpp.py b/koboldcpp.py
index 4d7493db5..4d983b5d8 100644
--- a/koboldcpp.py
+++ b/koboldcpp.py
@@ -594,16 +594,20 @@ def end_trim_to_sentence(input_text):
         return input_text[:last + 1].strip()
     return input_text.strip()
 
-def tryparseint(value):
+def tryparseint(value,fallback):
+    if value is None:
+        return fallback
     try:
         return int(value)
     except ValueError:
-        return value
-def tryparsefloat(value):
+        return fallback
+def tryparsefloat(value,fallback):
+    if value is None:
+        return fallback
     try:
         return float(value)
     except ValueError:
-        return value
+        return fallback
 
 def is_incomplete_utf8_sequence(byte_seq): #note, this will only flag INCOMPLETE sequences, corrupted ones will be ignored.
     try:
@@ -1237,32 +1241,32 @@ def generate(genparams, stream_flag=False):
     prompt = genparams.get('prompt', "")
     memory = genparams.get('memory', "")
     images = genparams.get('images', [])
-    max_context_length = int(genparams.get('max_context_length', maxctx))
-    max_length = int(genparams.get('max_length', args.defaultgenamt))
-    temperature = float(genparams.get('temperature', 0.75))
-    top_k = int(genparams.get('top_k', 100))
-    top_a = float(genparams.get('top_a', 0.0))
-    top_p = float(genparams.get('top_p', 0.92))
-    min_p = float(genparams.get('min_p', 0.0))
-    typical_p = float(genparams.get('typical', 1.0))
-    tfs = float(genparams.get('tfs', 1.0))
-    nsigma = float(genparams.get('nsigma', 0.0))
-    rep_pen = float(genparams.get('rep_pen', 1.0))
-    rep_pen_range = int(genparams.get('rep_pen_range', 320))
-    rep_pen_slope = float(genparams.get('rep_pen_slope', 1.0))
-    presence_penalty = float(genparams.get('presence_penalty', 0.0))
-    mirostat = int(genparams.get('mirostat', 0))
-    mirostat_tau = float(genparams.get('mirostat_tau', 5.0))
-    mirostat_eta = float(genparams.get('mirostat_eta', 0.1))
-    dry_multiplier = float(genparams.get('dry_multiplier', 0.0))
-    dry_base = float(genparams.get('dry_base', 1.75))
-    dry_allowed_length = int(genparams.get('dry_allowed_length', 2))
-    dry_penalty_last_n = int(genparams.get('dry_penalty_last_n', 320))
+    max_context_length = tryparseint(genparams.get('max_context_length', maxctx),maxctx)
+    max_length = tryparseint(genparams.get('max_length', args.defaultgenamt),args.defaultgenamt)
+    temperature = tryparsefloat(genparams.get('temperature', 0.75),0.75)
+    top_k = tryparseint(genparams.get('top_k', 100),100)
+    top_a = tryparsefloat(genparams.get('top_a', 0.0),0.0)
+    top_p = tryparsefloat(genparams.get('top_p', 0.92),0.92)
+    min_p = tryparsefloat(genparams.get('min_p', 0.0),0.0)
+    typical_p = tryparsefloat(genparams.get('typical', 1.0),1.0)
+    tfs = tryparsefloat(genparams.get('tfs', 1.0),1.0)
+    nsigma = tryparsefloat(genparams.get('nsigma', 0.0),0.0)
+    rep_pen = tryparsefloat(genparams.get('rep_pen', 1.0),1.0)
+    rep_pen_range = tryparseint(genparams.get('rep_pen_range', 320),320)
+    rep_pen_slope = tryparsefloat(genparams.get('rep_pen_slope', 1.0),1.0)
+    presence_penalty = tryparsefloat(genparams.get('presence_penalty', 0.0),0.0)
+    mirostat = tryparseint(genparams.get('mirostat', 0),0)
+    mirostat_tau = tryparsefloat(genparams.get('mirostat_tau', 5.0),5.0)
+    mirostat_eta = tryparsefloat(genparams.get('mirostat_eta', 0.1),0.1)
+    dry_multiplier = tryparsefloat(genparams.get('dry_multiplier', 0.0),0.0)
+    dry_base = tryparsefloat(genparams.get('dry_base', 1.75),1.75)
+    dry_allowed_length = tryparseint(genparams.get('dry_allowed_length', 2),2)
+    dry_penalty_last_n = tryparseint(genparams.get('dry_penalty_last_n', 320),320)
     dry_sequence_breakers = genparams.get('dry_sequence_breakers', [])
-    xtc_threshold = float(genparams.get('xtc_threshold', 0.2))
-    xtc_probability = float(genparams.get('xtc_probability', 0))
+    xtc_threshold = tryparsefloat(genparams.get('xtc_threshold', 0.2),0.2)
+    xtc_probability = tryparsefloat(genparams.get('xtc_probability', 0),0)
     sampler_order = genparams.get('sampler_order', [6, 0, 1, 3, 4, 2, 5])
-    seed = tryparseint(genparams.get('sampler_seed', -1))
+    seed = tryparseint(genparams.get('sampler_seed', -1),-1)
     stop_sequence = genparams.get('stop_sequence', [])
     ban_eos_token = genparams.get('ban_eos_token', False)
     stream_sse = stream_flag
@@ -1278,9 +1282,9 @@ def generate(genparams, stream_flag=False):
     grammar_retain_state = genparams.get('grammar_retain_state', False)
     genkey = genparams.get('genkey', '')
     trimstop = genparams.get('trim_stop', True)
-    dynatemp_range = float(genparams.get('dynatemp_range', 0.0))
-    dynatemp_exponent = float(genparams.get('dynatemp_exponent', 1.0))
-    smoothing_factor = float(genparams.get('smoothing_factor', 0.0))
+    dynatemp_range = tryparsefloat(genparams.get('dynatemp_range', 0.0),0.0)
+    dynatemp_exponent = tryparsefloat(genparams.get('dynatemp_exponent', 1.0),1.0)
+    smoothing_factor = tryparsefloat(genparams.get('smoothing_factor', 0.0),0.0)
     logit_biases = genparams.get('logit_bias', {})
     render_special = genparams.get('render_special', False)
     banned_strings = genparams.get('banned_strings', []) # SillyTavern uses that name
@@ -1534,14 +1538,14 @@ def sd_generate(genparams):
     init_images = ("" if (not init_images_arr or len(init_images_arr)==0 or not init_images_arr[0]) else init_images_arr[0])
     mask = genparams.get("mask", "")
     flip_mask = genparams.get("inpainting_mask_invert", 0)
-    denoising_strength = tryparsefloat(genparams.get("denoising_strength", 0.6))
-    cfg_scale = tryparsefloat(genparams.get("cfg_scale", 5))
-    sample_steps = tryparseint(genparams.get("steps", 20))
-    width = tryparseint(genparams.get("width", 512))
-    height = tryparseint(genparams.get("height", 512))
-    seed = tryparseint(genparams.get("seed", -1))
+    denoising_strength = tryparsefloat(genparams.get("denoising_strength", 0.6),0.6)
+    cfg_scale = tryparsefloat(genparams.get("cfg_scale", 5),5)
+    sample_steps = tryparseint(genparams.get("steps", 20),20)
+    width = tryparseint(genparams.get("width", 512),512)
+    height = tryparseint(genparams.get("height", 512),512)
+    seed = tryparseint(genparams.get("seed", -1),-1)
     sample_method = genparams.get("sampler_name", "k_euler_a")
-    clip_skip = tryparseint(genparams.get("clip_skip", -1))
+    clip_skip = tryparseint(genparams.get("clip_skip", -1),-1)
 
     #clean vars
     width = width - (width%64)
@@ -2043,7 +2047,7 @@ def transform_genparams(genparams, api_format):
         else:
             genparams["stop_sequence"] = [genparams.get('stop')]
 
-        genparams["sampler_seed"] = tryparseint(genparams.get('seed', -1))
+        genparams["sampler_seed"] = tryparseint(genparams.get('seed', -1),-1)
         genparams["mirostat"] = genparams.get('mirostat_mode', 0)
 
         if api_format==4 or api_format==7: #handle ollama chat here too
@@ -2248,7 +2252,7 @@ ws ::= | " " | "\n" [ \t]{0,20}
         if "top_p" in ollamaopts:
             genparams["top_p"] = ollamaopts.get('top_p', 0.92)
         if "seed" in ollamaopts:
-            genparams["sampler_seed"] = tryparseint(ollamaopts.get('seed', -1))
+            genparams["sampler_seed"] = tryparseint(ollamaopts.get('seed', -1),-1)
         if "stop" in ollamaopts:
             genparams["stop_sequence"] = ollamaopts.get('stop', [])
         genparams["stop_sequence"].append(user_message_start.strip())
@@ -3132,7 +3136,7 @@ Change Mode<br>
             loadid = -1
             try:
                 tempbody = json.loads(body)
-                loadid = tryparseint(tempbody.get('slot', 0))
+                loadid = tryparseint(tempbody.get('slot', 0),0)
             except Exception:
                 loadid = -1
             if loadid < 0 or str(loadid) not in savedata_obj:
@@ -3149,7 +3153,7 @@ Change Mode<br>
             else:
                 try:
                     incoming_story = json.loads(body) # ensure submitted data is valid json
-                    slotid = tryparseint(incoming_story.get('slot', -1))
+                    slotid = tryparseint(incoming_story.get('slot', -1),-1)
                     dataformat = incoming_story.get('format', "")
                     title = incoming_story.get('title', "")
                     if not title or title=="":