> For the complete documentation index, see [llms.txt](https://docs.qolaba.ai/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.qolaba.ai/speech-generation/audio-quality-and-optimization.md).

# Audio Quality and Optimization

### 6.1 Choosing Between Flash and Pro

Flash should be used when:

* Speed is a priority
* Testing scripts
* Minimizing credit usage

Pro should be used when:

* Final publishing is required
* Natural tone is important
* Client-ready quality is needed

***

### 6.2 Credit Efficiency Recommendations

To optimize credit usage:

* Test scripts with Flash first
* Finalize with Pro
* Avoid repeated regeneration without modifying script
* Keep scripts concise
* Reset settings instead of recreating from scratch