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May 2026

VoiceFrom Outperforms OpenAI in Live Translation Benchmark

VoiceFrom Outperforms OpenAI in Live Translation Benchmark

One week after OpenAI launched GPT-Realtime-Translate, Silicon Gardens portfolio company VoiceFrom ran it through a public head-to-head benchmark. VoiceFrom Pro won 6 of 8 language pairs.

On May 8, OpenAI added GPT-Realtime-Translate to its Realtime API. The first model built for live speech translation. Within a week, Silicon Gardens portfolio company
VoiceFrom ran it through a public head-to-head benchmark across eight language pairs. VoiceFrom Pro won six of them.

Figure :  Translation accuracy across major language pairs, measured using GEMBA error magnitude (lower is better). VoiceFrom consistently achieved the best scores in nearly every category, outperforming OpenAI, Google, and other leading translation providers

Tested against OpenAI, Google Meet, LiveVoice, and Palabra using GEMBA-MQM v2 , VoiceFrom delivered lower error magnitude across every major language pair. OpenAI's model is faster at the median. VoiceFrom is more accurate, including on real-world edge cases.


OpenAI's launch tells the industry that live translation is a real category. The benchmark tells the industry which system you can put on a stage today — VoiceFrom team


→ Full benchmark & audio: VoiceFrom Blog post
→ Open-source eval harness: GitHub

Big congrats to the VoiceFrom Team!

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