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license: other
license_name: research-only-non-commercial-data
license_link: https://github.com/interscript/interscript-models/blob/main/cards/urd-g2p-base-1.0.md
language:
- ur
tags:
- g2p
- byt5
- imf
- urdu
- research-only
metrics:
- cer
---
# urd-g2p-base-1.0
Urdu grapheme-to-phoneme, base tier (run-059): byt5-base seq2seq on
the full 610K-pair humair025 corpus. IMF v1 fp32 (2.16 GB).
## Metrics (full 12,699-row test split, raw char CER, row-mean)
CER **15.65** (urd-g2p-1.0 small tier: 15.78 baseline) — gate PASSED.
Normalized CER 10.75.
## Artifact parity (WO51 contract)
Single-row greedy decode, the runtime's actual decode mode: 500-row
probe recorded in the artifact metadata (the pre-WO51 batched
harness numbers were invalid — batched decode without an attention
mask measures nothing).
## License — RESEARCH-ONLY
The training corpus (humair025/urdu-g2p-dictionary) is
**non-commercial** (verified from the dataset card,
github.com/humair-m/urdu-g2p LICENSE). These weights are therefore
released **for research use only** — owner decision 2026-10-18
(recorded in `corpora/urd-g2p-dict.yaml` license_review). Code:
BSD-3-Clause.
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