Meet AssemblyAI: HackerNoon Company of the Week

AssemblyAI is a research-driven Speech AI platform delivering “superhuman” speech-to-text plus rich Audio Intelligence (summarization, sentiment, topics, moderation, PII redaction) and LeMUR—an LLM framework that turns transcripts into Q&A, action items, and recaps via one API. It serves 5,000+ customers, handling 25M+ daily calls and ~10 TB/day, and meets SOC 2 Type II, ISO 27001, PCI-DSS 4.0, GDPR, and EU residency needs. Its Conformer-2 model reports 30% fewer errors vs. leaders in noisy, real-world audio. AssemblyAI also ran a diarization campaign with HackerNoon’s 325k+ newsletter audience; HackerNoon’s relevancy-based ad system (50k+ tags grouped into categories) drives ~3× clicks, with CPM ~$7 and CPC ~$5.