diff --git a/core/src/browser/models/utils.test.ts b/core/src/browser/models/utils.test.ts
index 313ad0969..c5dff7868 100644
--- a/core/src/browser/models/utils.test.ts
+++ b/core/src/browser/models/utils.test.ts
@@ -29,7 +29,7 @@ describe('validationRules', () => {
     expect(validationRules.top_k(1)).toBe(true)
     expect(validationRules.top_k(0)).toBe(true)
     expect(validationRules.top_k(-0.1)).toBe(false)
-    expect(validationRules.top_k(1.1)).toBe(false)
+    expect(validationRules.top_k(1.1)).toBe(true)
     expect(validationRules.top_k('0.5')).toBe(false)
   })
 
@@ -68,8 +68,8 @@ describe('validationRules', () => {
     expect(validationRules.frequency_penalty(0.5)).toBe(true)
     expect(validationRules.frequency_penalty(1)).toBe(true)
     expect(validationRules.frequency_penalty(0)).toBe(true)
-    expect(validationRules.frequency_penalty(-0.1)).toBe(false)
-    expect(validationRules.frequency_penalty(1.1)).toBe(false)
+    expect(validationRules.frequency_penalty(-0.1)).toBe(true)
+    expect(validationRules.frequency_penalty(1.1)).toBe(true)
     expect(validationRules.frequency_penalty('0.5')).toBe(false)
   })
 
@@ -77,8 +77,8 @@ describe('validationRules', () => {
     expect(validationRules.presence_penalty(0.5)).toBe(true)
     expect(validationRules.presence_penalty(1)).toBe(true)
     expect(validationRules.presence_penalty(0)).toBe(true)
-    expect(validationRules.presence_penalty(-0.1)).toBe(false)
-    expect(validationRules.presence_penalty(1.1)).toBe(false)
+    expect(validationRules.presence_penalty(-0.1)).toBe(true)
+    expect(validationRules.presence_penalty(1.1)).toBe(true)
     expect(validationRules.presence_penalty('0.5')).toBe(false)
   })
 
@@ -255,16 +255,16 @@ describe('extractInferenceParams', () => {
       top_p: 0.9,
       stream: true,
       max_tokens: 50.3,
-      invalid_param: 'should_be_ignored'
+      invalid_param: 'should_be_ignored',
     }
-    
+
     const result = extractInferenceParams(modelParams as any)
     expect(result).toEqual({
       temperature: 1.5,
       token_limit: 100,
       top_p: 0.9,
       stream: true,
-      max_tokens: 50
+      max_tokens: 50,
     })
   })
 
@@ -296,9 +296,9 @@ describe('extractModelLoadParams', () => {
       prompt_template: 'template',
       llama_model_path: '/path/to/model',
       vision_model: false,
-      invalid_param: 'should_be_ignored'
+      invalid_param: 'should_be_ignored',
     }
-    
+
     const result = extractModelLoadParams(modelParams as any)
     expect(result).toEqual({
       ctx_len: 2048,
@@ -308,23 +308,23 @@ describe('extractModelLoadParams', () => {
       cpu_threads: 8,
       prompt_template: 'template',
       llama_model_path: '/path/to/model',
-      vision_model: false
+      vision_model: false,
     })
   })
 
   it('should handle parameters without validation rules', () => {
-    const modelParams = { 
+    const modelParams = {
       engine: 'llama',
       pre_prompt: 'System:',
       system_prompt: 'You are helpful',
-      model_path: '/path'
+      model_path: '/path',
     }
     const result = extractModelLoadParams(modelParams as any)
     expect(result).toEqual({
       engine: 'llama',
       pre_prompt: 'System:',
       system_prompt: 'You are helpful',
-      model_path: '/path'
+      model_path: '/path',
     })
   })
 
diff --git a/core/src/browser/models/utils.ts b/core/src/browser/models/utils.ts
index cb1baacd7..c11bed4c7 100644
--- a/core/src/browser/models/utils.ts
+++ b/core/src/browser/models/utils.ts
@@ -8,13 +8,13 @@ import { ModelParams, ModelRuntimeParams, ModelSettingParams } from '../../types
 export const validationRules: { [key: string]: (value: any) => boolean } = {
   temperature: (value: any) => typeof value === 'number' && value >= 0 && value <= 2,
   token_limit: (value: any) => Number.isInteger(value) && value >= 0,
-  top_k: (value: any) => typeof value === 'number' && value >= 0 && value <= 1,
+  top_k: (value: any) => typeof value === 'number' && value >= 0,
   top_p: (value: any) => typeof value === 'number' && value >= 0 && value <= 1,
   stream: (value: any) => typeof value === 'boolean',
   max_tokens: (value: any) => Number.isInteger(value) && value >= 0,
   stop: (value: any) => Array.isArray(value) && value.every((v) => typeof v === 'string'),
-  frequency_penalty: (value: any) => typeof value === 'number' && value >= 0 && value <= 1,
-  presence_penalty: (value: any) => typeof value === 'number' && value >= 0 && value <= 1,
+  frequency_penalty: (value: any) => typeof value === 'number' && value >= -2 && value <= 2,
+  presence_penalty: (value: any) => typeof value === 'number' && value >= -2 && value <= 2,
   repeat_last_n: (value: any) => typeof value === 'number',
   repeat_penalty: (value: any) => typeof value === 'number',
   min_p: (value: any) => typeof value === 'number',