diff --git a/bun.lock b/bun.lock
index 8ac1d04..46c9bf0 100644
--- a/bun.lock
+++ b/bun.lock
@@ -7,6 +7,8 @@
       "dependencies": {
         "@ai-sdk/openai-compatible": "^2.0.41",
         "ai": "^6.0.161",
+        "ansi-styles": "^6.2.3",
+        "chalk": "^5.6.2",
       },
       "devDependencies": {
         "@biomejs/biome": "2.4.12",
@@ -56,8 +58,12 @@
 
     "ai": ["ai@6.0.161", "", { "dependencies": { "@ai-sdk/gateway": "3.0.98", "@ai-sdk/provider": "3.0.8", "@ai-sdk/provider-utils": "4.0.23", "@opentelemetry/api": "1.9.0" }, "peerDependencies": { "zod": "^3.25.76 || ^4.1.8" } }, "sha512-ufhmijmx2YyWTPAicGgtpLOB/xD7mG8zKs1pT1Trj+JL/3r1rS8fkMi/cHZoChSAQSGB4pgmcWVxDrVTUvK2IQ=="],
 
+    "ansi-styles": ["ansi-styles@6.2.3", "", {}, "sha512-4Dj6M28JB+oAH8kFkTLUo+a2jwOFkuqb3yucU0CANcRRUbxS0cP0nZYCGjcc3BNXwRIsUVmDGgzawme7zvJHvg=="],
+
     "bun-types": ["bun-types@1.3.12", "", { "dependencies": { "@types/node": "*" } }, "sha512-HqOLj5PoFajAQciOMRiIZGNoKxDJSr6qigAttOX40vJuSp6DN/CxWp9s3C1Xwm4oH7ybueITwiaOcWXoYVoRkA=="],
 
+    "chalk": ["chalk@5.6.2", "", {}, "sha512-7NzBL0rN6fMUW+f7A6Io4h40qQlG+xGmtMxfbnH/K7TAtt8JQWVQK+6g0UXKMeVJoyV5EkkNsErQ8pVD3bLHbA=="],
+
     "eventsource-parser": ["eventsource-parser@3.0.6", "", {}, "sha512-Vo1ab+QXPzZ4tCa8SwIHJFaSzy4R6SHf7BY79rFBDf0idraZWAkYrDjDj8uWaSm3S2TK+hJ7/t1CEmZ7jXw+pg=="],
 
     "json-schema": ["json-schema@0.4.0", "", {}, "sha512-es94M3nTIfsEPisRafak+HDLfHXnKBhV3vU5eqPcS3flIWqcxJWgXHXiey3YrpaNsanY5ei1VoYEbOzijuq9BA=="],
diff --git a/index.ts b/index.ts
index 4add7c1..28f306c 100644
--- a/index.ts
+++ b/index.ts
@@ -2,6 +2,7 @@ import os from "node:os";
 import { parseArgs } from "node:util";
 import { createOpenAICompatible } from "@ai-sdk/openai-compatible";
 import { type ModelMessage, streamText } from "ai";
+import chalk from "chalk";
 
 import StreamRenderer from "./src/render";
 
@@ -101,7 +102,9 @@ async function main() {
   const output = (outputTokens ?? 0) / 1000;
   const time = (stop - start) / 1000;
   process.stderr.write(
-    `\u001b[2mContext: ${context.toFixed(1)}k, Output: ${output.toFixed(1)}k, Time: ${time.toFixed(2)}s\u001b[22m\n`,
+    chalk.dim(
+      `Context: ${context.toFixed(1)}k, Output: ${output.toFixed(1)}k, Time: ${time.toFixed(2)}s\n`,
+    ),
   );
 }
 
diff --git a/package.json b/package.json
index 63aacf3..827975e 100644
--- a/package.json
+++ b/package.json
@@ -24,6 +24,8 @@
   },
   "dependencies": {
     "@ai-sdk/openai-compatible": "^2.0.41",
-    "ai": "^6.0.161"
+    "ai": "^6.0.161",
+    "ansi-styles": "^6.2.3",
+    "chalk": "^5.6.2"
   }
 }
diff --git a/src/render/index.ts b/src/render/index.ts
index 3b0e33b..774020b 100644
--- a/src/render/index.ts
+++ b/src/render/index.ts
@@ -1,5 +1,7 @@
 import os from "node:os";
 import type { AsyncIterableStream, TextStreamPart, ToolSet } from "ai";
+import styles from "ansi-styles";
+import { supportsColor } from "chalk";
 
 const home = os.homedir();
 const reasoningWriter = Bun.file(`${home}/.aicl_reasoning.md`).writer();
@@ -56,14 +58,17 @@ export default class StreamRenderer {
 
     for await (const part of stream) {
       if (part.type === "reasoning-start") {
-        this.write("\u001b[2m\u001b[3m\n");
+        if (supportsColor)
+          this.write(`${styles.dim.open}${styles.italic.open}`);
+        this.write("\n");
       } else if (part.type === "reasoning-delta") {
         this.write(part.text);
         reasoningWriter.write(part.text);
         this.checkContainment(part.text);
       } else if (part.type === "reasoning-end") {
-        this.write("\n\u001b[22m\u001b[23m");
-        this.moveCursor(0, -this.lineCount - 2);
+        if (supportsColor)
+          this.write(`${styles.italic.close}${styles.dim.close}`);
+        this.moveCursor(0, -this.lineCount - 1);
         this.clearScreenDown();
         this.resetCounts();
         reasoningWriter.end();