Trelis Research

Trelis Research builds voice AI systems for developers and enterprises working with overlapping speakers, specialist terminology and noisy recordings. Tiron transcribes multi-speaker meetings and attributes speech to speakers, with access through the Trelis API or locally deployed open weights. Tara handles Hindi transcription and Hindi-English code-switching, writing English in Latin script and Hindi in Devanagari. Its open weights work with whisper-large-v3 tooling.

Based in Dublin, Trelis was founded and is led by Ronan McGovern, previously co-founder and CEO of Sandymount Technologies, an MIT spinout acquired by Alfa Laval in 2020. Its engineering work includes Tiron’s Whisper Large-based transcription model and an open-source harness that joins short audio segments into long meeting transcripts. The harness uses two transcription passes and speaker embeddings to link speakers across segments, including overlapping conversations. Tiron is non-streaming, processing audio in 30-second windows.

Trelis offers custom speech recognition and text-to-speech model development, voice agent pipelines, benchmarking, audio data preparation and deployment support. Its Converse product combines recognition, turn-taking, interruption handling, reasoning, tool use and speech generation in one managed real-time API. As of August 2026, Converse remains in private alpha with a small group of design partners.