diff --git a/alpaca.js b/alpaca.js
index 2cfd4e8..f4930e9 100644
--- a/alpaca.js
+++ b/alpaca.js
@@ -65,10 +65,36 @@ class Alpaca {
       * 5. Download models + convert + quantize
       *
       **************************************************************************************************************/
-      const outputFile = path.resolve(this.home, 'models', model, 'ggml-model-q4_0.bin')
-      if (fs.existsSync(outputFile)) {
-        console.log(`Skip conversion, file already exists: ${outputFile}`)
-      } else {
+      
+      const currentVersions = {
+        "7B": 'ggml-model-q4_0.bin',
+        "13B": 'ggml-model-q4_1.bin',
+        "30B": 'ggml-model-q4_0.bin',
+      }
+
+      const outputFiles = Object.keys(currentVersions).map((m) => {
+        return path.resolve(this.home, 'models', m, currentVersions[m])
+      })
+
+      const modelExists = outputFiles.some((f) => {
+        if (fs.existsSync(f)) {
+          console.log(`Skip conversion, file already exists: ${f}`)
+          return true
+        }
+        // delete other model files in folder in case of an upgrade
+
+        const dir = path.dirname(f);
+        const files = fs.readdirSync(dir);
+        if (files.length !== 0) console.log("Upgrading model, removing old files...")
+        
+        for (const file of files) {
+          fs.unlinkSync(path.join(dir, file));
+          console.log(`Removed old model file: ${file} in ${dir}`)
+        }
+        return false
+      })
+      
+      if (!modelExists) {
         const dir = path.resolve(this.home, "models", model)
         console.log("dir", dir)
         await fs.promises.mkdir(dir, { recursive: true }).catch((e) => {
@@ -76,39 +102,12 @@ class Alpaca {
         })
         console.log("downloading torrent")
         let url
-        switch (model) {
-          case "7B":
-            //await this.root.torrent.add('magnet:?xt=urn:btih:5aaceaec63b03e51a98f04fd5c42320b2a033010&dn=ggml-alpaca-7b-q4.bin&tr=udp%3A%2F%2Ftracker.opentrackr.org%3A1337%2Fannounce&tr=udp%3A%2F%2Fopentracker.i2p.rocks%3A6969%2Fannounce', dir)
-            //console.log("renaming")
-            //await fs.promises.rename(
-            //  path.resolve(dir, "ggml-alpaca-7b-q4.bin"),
-            //  path.resolve(dir, "ggml-model-q4_0.bin")
-            //)
-            url = "https://huggingface.co/Pi3141/alpaca-7B-ggml/resolve/main/ggml-model-q4_0.bin"
-            await this.root.down(url, path.resolve(dir, "ggml-model-q4_0.bin"))
-            break;
-          
-          case "13B":
-            /*
-            await this.root.torrent.add('magnet:?xt=urn:btih:053b3d54d2e77ff020ebddf51dad681f2a651071&dn=ggml-alpaca-13b-q4.bin&tr=udp%3A%2F%2Ftracker.opentrackr.org%3A1337%2Fannounce&tr=udp%3A%2F%2Fopentracker.i2p.rocks%3A6969%2Fannounce&tr=udp%3A%2F%2Ftracker.openbittorrent.com%3A6969%2Fannounce&tr=udp%3A%2F%2F9.rarbg.com%3A2810%2Fannounce', dir)
-            console.log("renaming")
-            await fs.promises.rename(
-              path.resolve(dir, "ggml-alpaca-13b-q4.bin"),
-              path.resolve(dir, "ggml-model-q4_0.bin")
-            )
-            */
-            url = "https://huggingface.co/Pi3141/alpaca-13B-ggml/resolve/main/ggml-model-q4_1.bin"
-            await this.root.down(url, path.resolve(dir, "ggml-model-q4_0.bin"))
-            break;
 
-          case "30B":
-            url = "https://huggingface.co/Pi3141/alpaca-30B-ggml/resolve/main/ggml-model-q4_0.bin"
-            await this.root.down(url, path.resolve(dir, "ggml-model-q4_0.bin"))
-            break;
-          
-          default:
-            console.log("Select either model 7B, 13B, or 30B")
-            break;
+        if (Object.keys(currentVersions).includes(model)) {
+          url = `https://huggingface.co/Pi3141/alpaca-${model}-ggml/resolve/main/${currentVersions[model]}`
+            await this.root.down(url, path.resolve(dir, currentVersions[model]))
+        } else {
+          console.log("Select either model 7B, 13B, or 30B")
         }
       }
     }
diff --git a/index.js b/index.js
index ea1cf3a..a6fe753 100644
--- a/index.js
+++ b/index.js
@@ -225,13 +225,19 @@ class Dalai {
       seed: req.seed || -1,
       threads: req.threads || 8,
       n_predict: req.n_predict || 128,
-      model: `models/${Model || "7B"}/ggml-model-q4_0.bin`,
+      model: "",
     }
 
     let e = await exists(path.resolve(this.home, Core, "models", Model))
     if (!e) {
       cb(`File does not exist: ${Model}. Try "dalai ${Core} get ${Model}" first.`)
       return
+    } else {
+      const potentialBinFiles = await fs.promises.readdir(path.resolve(this.home, Core, "models", Model))
+      if (potentialBinFiles.length === 0) {
+        cb(`No model files found in ${Model}. Try "dalai ${Core} get ${Model}" first.`) 
+      }
+      o.model = path.resolve(this.home, Core, "models", Model, potentialBinFiles[0])
     }
 
     if (req.top_k) o.top_k = req.top_k
@@ -367,8 +373,11 @@ class Dalai {
 
       console.log({ modelFolders })
       for(let modelFolder of modelFolders) {
-        let e = await exists(path.resolve(modelsPath, modelFolder, 'ggml-model-q4_0.bin'))
-        if (e) {
+        // get bin files in model folder
+
+        const binFiles = fs.readdirSync(path.resolve(modelsPath, modelFolder)).filter((f) => f.endsWith(".bin"))
+
+        if (binFiles.length !== 0) {
           modelNames.push(`${core}.${modelFolder}`)
           console.log("exists", modelFolder)
         }
diff --git a/llama.js b/llama.js
index 6e54625..d195c91 100644
--- a/llama.js
+++ b/llama.js
@@ -111,8 +111,16 @@ npx dalai install 7B 13B
     }
     for(let i=0; i<num[model]; i++) {
       const suffix = (i === 0 ? "" : `.${i}`)
+
+      const potentialOutputFiles = fs.readdirSync(`./models/${model}/`).filter(f => f.endsWith(`.bin`))
+      
+      if (potentialOutputFiles.length === 0) {
+        throw new Error(`No bin file found in ./models/${model}/`)
+      }
+
       const outputFile1 = path.resolve(this.home, `./models/${model}/ggml-model-f16.bin${suffix}`)
-      const outputFile2 = path.resolve(this.home, `./models/${model}/ggml-model-q4_0.bin${suffix}`)
+      const outputFile2 = path.resolve(this.home, `./models/${model}/${potentialOutputFiles[0]}${suffix}`)
+
       if (fs.existsSync(outputFile1) && fs.existsSync(outputFile2)) {
         console.log(`Skip quantization, files already exists: ${outputFile1} and ${outputFile2}}`)
         continue