Korean transcription missing word spacing in Nova-3 (regression from Nova-2)

[hsjun99]

Problem

Nova-3 Korean transcription is returning text without spaces between words, while Nova-2 correctly included spacing. The word-level timestamps in the API response show that words are being correctly segmented internally, but this spacing is not reflected in the final transcript text.

Expected Behavior

Korean transcripts should include spaces between words, as they did in Nova-2.

Current Behavior

Nova-3: Returns Korean text without any spacing

"여보세요만나서반갑습니다제이름은홍승준이라고"

Nova-2: Correctly returned Korean text with proper spacing

"여보세요 만나서 반갑습니다. 제 이름은 한성준이라고 하고요"

Evidence of Internal Word Segmentation

The words array in the API response shows that Nova-3 is correctly identifying word boundaries:

• Each word has proper start and end timestamps
• Words are properly segmented (e.g., "여보세요", individual words are tracked)

This suggests the spacing logic works internally but isn't being applied to the final transcript string.

API Details

• Model: nova-3
• Language: Korean (ko)

Request

Please apply the same word spacing logic to Nova-3's Korean transcripts that was used in Nova-2. Since the word segmentation is already working (as evidenced by the timestamps), this should hopefully be a straightforward fix to include spaces in the concatenated transcript text.

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[hsjun99]

Python

[zakaf]

i'm also experiencing the same issue

[kapitalismho]

+1, same issue here. Interestingly, pre-recorded API returns proper spacing, but streaming API returns no spaces at all.