dtsj89/puki-lines

Puki's lines

These are the lines that taught Brains to talk: the Hebrew one and the English one, the small language models (44M each) behind Puki, a free Hebrew/English parrot game for toddlers aged 2 to 4 that runs entirely on the tablet (pukiparrot.com, code).

All of it is synthetic. DeepSeek V4 (Pro and Flash) wrote the lines, and a second DeepSeek call judged them. Then Puki's own filters ran (brain/safety.py, brain/persona.py): every line had to be short, use toddler words, make no promises and tell the truth about the game. No child's words or recordings are in here.

Configs

Config	Split	Rows	What
sft	train / test	61,379 / 6,003	One Puki line per row, Hebrew and English about evenly
dpo	judge	81,275	Pairs where the judge preferred one line over another for the same input
dpo	onpolicy	2,400	Pairs where the rejected line is Brains' own mistake (recaps, silly corrections)
dpo	judged	2,608	Brains v2's own lines, four per input: the best and the worst as DeepSeek's editor scored them (1,123 Hebrew, 1,485 English; kind is judged)
gate	train	962	Something a toddler might say → the safety gate's digit

Fields

• task: the moment Puki is reacting to:

  • moment: a game event.
  • tap: the child tapped Puki.
  • talk: the child said something.
  • careful: a hard thing was said.
  • reach_back: recalling something earlier.
  • silly / silly_fix: Puki says something silly, then fixes it.
  • care: bath, meal, teeth and sleep.
  • story_next: the next beat of a story.
  • recap: the bedtime recap.
  • look: commenting on a drawing.
  • gate: the safety digit as an SFT task.

• lang: he or en.

• girl: whether the child is addressed as a girl. Hebrew is gendered, so Puki speaks to a girl or a boy.

• input: what the game tells Puki. earlier holds an earlier moment, for reach_back.

• line: Puki's line (SFT). The Hebrew rows in the first batch also have say, the line's phonemes. In DPO rows, chosen and rejected replace line.

• text: the row exactly as Brains saw it in training.

• digit (gate only):

  • 0: play.
  • 1: hurt, needs, feelings or asking for a parent.
  • 2: danger.
  • 3: big questions, secrets or buying.

  A non-zero digit means Puki gives a fixed answer that points the child to a parent.

License

CC BY 4.0. Credit "Puki's lines, Tom Sadeh" and link here.