diff --git a/src/index.ts b/src/index.ts
index 40aa32c..b876eb9 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -34,7 +34,7 @@ export async function run(): Promise<void> {
     const summary = await summarizeChanges(changes)
 
     if (!summary) {
-      Logger.warn('Could not summarize changes, exiting')
+      Logger.warn('Summary is empty, exiting')
       return
     }
 
diff --git a/src/prompts.ts b/src/prompts.ts
index 3d2fbd9..eaab260 100644
--- a/src/prompts.ts
+++ b/src/prompts.ts
@@ -10,33 +10,8 @@ Be specific and descriptive, accurately identifying the affected files and lines
 Present your summary in a clear and concise manner, ensuring readability and comprehension for all stakeholders involved in the code review process. 
 
 Length: Aim for a summary of around 3-5 sentences. 
-
-Style: Maintain a professional and objective tone in your review, emphasizing the technical aspects and impact of the changes rather than personal opinions.
-
-Formatting: Use Markdown to format your summary.
-e.g.
-  ## Title
-
-  # Issue Reference
-  
-  - This PR fixes/closes/relates to issue #[issue number]
-  
-  ## Description
-  
-  - Detailed explanation of what this PR does and why it's needed.
-  
-  ## Why?
-  
-  - Explanation of the reasoning behind the changes.
-  
-  ## Testing Scope
-  
-  - Scenarios to be tested based on the changes of this PR e.g table was updated so all CRUD operations should be tested.
-  
-  ## Notable Changes
-
-  - if the new changes has a  significant change in the logic please add a short table of the old and new logic and ask 
-  if the new logic is correct or not.
+-----------------------------
+{diff}
     `
 
 export const generatePrompt = () => { }
diff --git a/src/steps/summarize-changes.ts b/src/steps/summarize-changes.ts
index 42d94f6..c28747d 100644
--- a/src/steps/summarize-changes.ts
+++ b/src/steps/summarize-changes.ts
@@ -10,37 +10,48 @@ export async function summarizeChanges(
   diff: string
 ): Promise<string | undefined> {
   try {
-    Logger.log('summarizing changes')
+
     const openAiKey = core.getInput('openAIKey')
+
     const model = new OpenAI(
-      { temperature: 0, openAIApiKey: openAiKey },
+      { temperature: 0.7, openAIApiKey: openAiKey, "model": "davinci" },
     )
-    Logger.log('created model')
+
     const textSplitter = new RecursiveCharacterTextSplitter({
-      chunkSize: 1000,
       separators: ['diff --git'],
       chunkOverlap: 0,
       keepSeparator: true
     })
+
     Logger.log('created text splitter')
+
     const docs = await textSplitter.createDocuments([diff])
-    const basePromptTemplate = PromptTemplate.fromTemplate(prompt)
+
+    const basePromptTemplate = new PromptTemplate({
+      template: prompt,
+      inputVariables: ["diff"]
+    })
+
     Logger.log('created prompt template')
     const chain = loadSummarizationChain(model, {
-      prompt: basePromptTemplate,
+      type: "refine",
       verbose: true,
-      type: 'stuff'
+      refinePrompt: basePromptTemplate
     })
+
     Logger.log('loaded summarization chain')
+
     const res = await chain.call({
-      input_documents: docs
+      input_documents: docs,
+      diff: diff
     })
+
     Logger.log('summarized changes')
     console.log({ res })
-
-    return res.output.join('\n')
+    return res.output_text
   } catch (e) {
     Logger.log('error summarizing changes')
+    console.log(e)
     Logger.log(e)
   }
 }