1 million characters for $15 (about 20,160 won)... AssemblyAI TTS-1, Korean not among launch languages

AssemblyAI on October 27 released its text-to-speech model AssemblyAI-TTS-1 at $15 per 1 million input characters, with supported languages limited to English, Spanish, French, German, Italian, and Portuguese—Korean was not among the six launch languages. The company said users can choose U.S. or EU data-processing regions and that voice cloning carries no separate charge. TTS-1 is priced on a usage basis with no minimum contract, though concurrent-request caps and a separate concurrency fee apply; AssemblyAI noted these terms are specific to TTS-1 and may not extend to other products. The omission of Korean matters because it leaves one of Asia's largest digital-content and voice-AI markets unaddressed at launch, while the $15-per-million-character rate sets a comparable benchmark against rival Fish Audio's API pricing of $15 per 1 million UTF-8 bytes. What to watch next is whether AssemblyAI adds Korean and other languages, and whether the concurrency fee and regional data-processing options shift enterprise adoption.