Sovereign AI workflows·Operational in 14 markets
PhilippinesDeployed

Cebuano

Spoken across the Visayas and Mindanao, and the language most often missing from commercial models.

87.74%
ASR accuracy
12.26%
Word error rate
3.8/5
TTS score
Speed
Coverage

What Cebuano supports today

TextAvailable

Understanding and reply in written conversation — the floor every language here has.

Audio messagingAvailable

Speech-to-text and text-to-speech for recorded voice notes, processed in batch, not live.

Voice streamingSoon

Live, real-time speech on a voice call — not yet built for any language.

Benchmarks

Measured against published targets

Measured performance of the deployed ASR and TTS models for Cebuano, against Proto's target thresholds. Proto publishes these figures whether or not they clear the target.

ASR · speech-to-text
ASR accuracy
87.74% · Target ≥ 90% · 2.3% under target
Word error rate
12.26% · Target ≤ 10% · 2.3% over target
ASR fallback
6.36% · Target < 5% · 1.4% over target
ASR speed
1.76s · Target < 1s · 0.8s over target
TTS · text-to-speech
TTS mean opinion score
3.8/5 · Target ≥ 4.5 / 5 · 0.7/5 under target
TTS fallback
22.58% · Target < 5% · 17.6% over target
TTS speed
1.53s · Target < 1s · 0.5s over target

Mean opinion score rates the naturalness of synthesised speech on a 1–5 scale. Tests ran on an Azure Standard NC4as T4 v3 instance with an NVIDIA Tesla T4 GPU; the ASR test set used audio samples of 5–10 seconds.

In production

Where Cebuano is deployed

Cebuano is used for regional citizen support in the Visayas and Mindanao, where callers routinely code-switch between Cebuano, Filipino and English within a single conversation.

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Deploy in Cebuano

Our local team will benchmark against your own audio before you commit.