---
title: Test and improve your generated SDKs | Stainless
description: How to tweak and iterate on your SDKs before launch.
---

[Generated SDK tests ](/docs/sdks/test/generated-tests/index.md)Learn about the tests Stainless generates for your SDKs and how and when they're run

[Make changes on branches ](/docs/sdks/test/branches/index.md)Safely test OpenAPI and Stainless config changes with branches

[AI-generated commit messages ](/docs/sdks/test/ai-commit-messages/index.md)Generate descriptive commit messages for your codegen targets

[Preview and test codegen results before API changes go live ](/docs/sdks/test/preview-builds/index.md)View and validate your SDKs and other codegen targets before you ship changes to your OpenAPI spec