The machine translation efficiency task challenges participants to make their systems faster and smaller with minimal impact on translation quality. How much quality to sacrifice for efficiency depends upon the application, so participants were encouraged to make multiple submissions covering the space of tradeoffs. In total, there were 53 submissions by 4 teams. There were GPU, single-core CPU, and multi-core CPU hardware tracks as well as batched throughput or single-sentence latency

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... s. Submissions showed hundreds of millions of words can be translated for a dollar, average latency is 5-20 ms, and models fit in 7.5-150 MB.