diff --git a/.changeset/mistralai-exclude-test-files.md b/.changeset/mistralai-exclude-test-files.md
new file mode 100644
index 000000000..fb66fcff5
--- /dev/null
+++ b/.changeset/mistralai-exclude-test-files.md
@@ -0,0 +1,5 @@
+---
+'@livekit/agents-plugin-mistralai': patch
+---
+
+fix(mistralai): exclude `.test.ts` files from build output so test artifacts are no longer published to npm
diff --git a/plugins/mistralai/tsconfig.json b/plugins/mistralai/tsconfig.json
index d33da6062..ebfd30fcd 100644
--- a/plugins/mistralai/tsconfig.json
+++ b/plugins/mistralai/tsconfig.json
@@ -1,6 +1,7 @@
 {
   "extends": "../../tsconfig.json",
   "include": ["./src"],
+  "exclude": ["./src/**/*.test.ts"],
   "compilerOptions": {
     // match output dir to input dir. e.g. dist/index instead of dist/src/index
     "rootDir": "./src",
diff --git a/plugins/mistralai/tsup.config.ts b/plugins/mistralai/tsup.config.ts
index 2711b6c7a..200666830 100644
--- a/plugins/mistralai/tsup.config.ts
+++ b/plugins/mistralai/tsup.config.ts
@@ -7,4 +7,5 @@ import defaults from '../../tsup.config';
 
 export default defineConfig({
   ...defaults,
+  entry: ['src/**/*.ts', '!src/**/*.test.ts'],
 });