diff --git a/.env.example b/.env.example
index 2e7262f..c079b2c 100644
--- a/.env.example
+++ b/.env.example
@@ -6,3 +6,6 @@ REDIS_PORT=
 REDIS_USERNAME=
 REDIS_PASSWORD=
 CORS_ORIGIN=
+FINE_TUNED_ID=
+
+
diff --git a/src/config/environment.ts b/src/config/environment.ts
index ff03fa1..69519b1 100644
--- a/src/config/environment.ts
+++ b/src/config/environment.ts
@@ -9,6 +9,7 @@ export enum EnvVars {
   REDIS_PASSWORD = 'REDIS_PASSWORD',
   REDIS_USERNAME = 'REDIS_USERNAME',
   CORS_ORIGIN = 'CORS_ORIGIN',
+  FINE_TUNED_ID = 'FINE_TUNED_ID',
 }
 
 /**
@@ -24,3 +25,4 @@ export const REDIS_PASSWORD = env[EnvVars.REDIS_PASSWORD];
 export const REDIS_USERNAME = env[EnvVars.REDIS_USERNAME];
 export const OPENAI_API_KEY = env[EnvVars.OPENAI_API_KEY];
 export const CORS_ORIGIN = env[EnvVars.CORS_ORIGIN]?.split(',') ?? [];
+export const FINE_TUNED_ID = env[EnvVars.FINE_TUNED_ID];
diff --git a/src/controllers/analyzer/createAnalysis.ts b/src/controllers/analyzer/createAnalysis.ts
index 861853d..b6002f8 100644
--- a/src/controllers/analyzer/createAnalysis.ts
+++ b/src/controllers/analyzer/createAnalysis.ts
@@ -4,6 +4,7 @@ import {
   ANALYZER_REDIS_SCHEMA,
   decrementRedisCounters,
   fetchFromOpenAI,
+  getFineTunedModel,
   redis,
 } from '@/services';
 import { checkModelField, checkSentenceField } from '@/validators';
@@ -27,7 +28,11 @@ export const createAnalysis = [
     const prompt = await redis.hget(KEYS.PROMPT, FIELDS.ANALYSIS);
     if (!prompt) return throwCustomError(RETRIEVE_FAILED('prompt'), 500);
 
-    const analysis = await fetchAnalysisFromOpenAI(sentence, model, prompt);
+    const analysis = await fetchAnalysisFromOpenAI(
+      sentence,
+      getFineTunedModel(model),
+      prompt,
+    );
     if (!analysis) return throwCustomError(GENERATE_FAILED('analysis'), 500);
 
     await decrementRedisCounters(
diff --git a/src/services/openai.ts b/src/services/openai.ts
index f2f7427..2c2fe84 100644
--- a/src/services/openai.ts
+++ b/src/services/openai.ts
@@ -1,11 +1,20 @@
 import { Configuration, CreateChatCompletionRequest, OpenAIApi } from 'openai';
-import { OPENAI_API_KEY } from '@/config';
+import { FINE_TUNED_ID, OPENAI_API_KEY } from '@/config';
 import { throwCustomError } from '@/utils';
-import { ERROR_MESSAGES } from '@/constants';
+import { ERROR_MESSAGES, GPTModels } from '@/constants';
 
 const configuration = new Configuration({ apiKey: OPENAI_API_KEY });
 export const openai = new OpenAIApi(configuration);
 
+export const getFineTunedModel = (model: GPTModels) => {
+  switch (model) {
+    case GPTModels.GPT_3:
+      return FINE_TUNED_ID ?? model;
+    default:
+      return model;
+  }
+};
+
 export const fetchFromOpenAI = async (request: CreateChatCompletionRequest) => {
   const { SERVICE_ERROR } = ERROR_MESSAGES;