- **Free Tier:** Yes (5,000 text records/month free). - **Quality:** Very good, especially with English and major languages; contextually accurate. - **Underlying Tech:** Microsoft’s advanced NLP models, continually updated with GPT/Transformer tech. - **Stability & Support:** **Very high**; part of the core Azure suite, extensive documentation, global support. - **Cons:** Occasional lag in supporting new languages/edge-cases.