In October 2025, AssemblyAI introduced significant updates to its Voice AI platform, enhancing multilingual capabilities, safety features, and model performance. The updates include the expansion of real-time transcription support to six languages, enabling global applications without compromising accuracy or speed. New safety guardrails such as profanity filtering, PII redaction, and content moderation ensure compliant and secure voice experiences, crucial for applications like healthcare and customer service. The release also features the LLM Gateway, which simplifies managing multiple large language models by providing a unified interface for testing and comparison. Significant improvements to the Universal-2 and Slam models enhance their ability to handle complex speech tasks and domain-specific terminology, while improved speaker diarization reduces errors in identifying speakers, benefiting applications like meeting transcriptions and conversation analysis. These advancements aim to make Voice AI development more accessible, accurate, and secure, offering developers robust tools to build sophisticated voice applications.