kron-corpus / scripts /gen_identity.py
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"""Generate the self-identity slice of the pretraining corpus.
The model should know its own name. A pretraining corpus of Wikipedia, books
and code contains no sentence "my name is Kron", so the name is injected as a
small, explicitly synthetic domain: short first-person texts in English and
Russian, generated locally by a larger model (Qwen3.5-4B via Ollama) from a
fixed set of prompt families.
This is data *about* the model, not knowledge: the slice is deliberately tiny
(a few hundred samples), and every sample is checked for identity leakage
(the generator talking about itself) before it is written.
Usage::
python scripts/gen_identity.py --samples-per-prompt 20
python scripts/gen_identity.py --check # verify an existing shard
"""
from __future__ import annotations
import argparse
import json
import random
import re
import sys
import time
import urllib.error
import urllib.request
from pathlib import Path
sys.path.insert(0, str(Path(__file__).resolve().parents[1]))
from kronllm.bilingual import append_jsonl, normalize, quality, record_shard
ROOT = Path("data/bilingual")
SHARDS = ROOT / "shards"
MANIFEST = ROOT / "manifest.jsonl"
OLLAMA = "http://localhost:11434/api/generate"
MODEL = "qwen3.5:4b"
#: Facts the generator is allowed to use. Everything else is a hallucination
#: and is filtered out below.
FACTS_EN = (
"Kron is a small bilingual English/Russian language model built by the "
"KronLLM project. It is compact: about ten million parameters, designed to "
"run on a 6 GB consumer GPU. Its weights are Kronecker products, which is "
"where the name comes from. It is a research model, not a chatbot, and it "
"can be wrong."
)
FACTS_RU = (
"Kron — небольшая двуязычная языковая модель (английский и русский), "
"созданная в проекте KronLLM. Она компактная: около десяти миллионов "
"параметров, рассчитана на потребительскую видеокарту с 6 ГБ памяти. "
"Её веса построены на кронекеровых произведениях — отсюда имя. Это "
"исследовательская модель, а не чат-бот, и она может ошибаться."
)
PROMPTS: list[tuple[str, str]] = [
("en", "Write a first-person introduction of 60-100 words. You are Kron. "
"Use only these facts: {facts}"),
("en", "Answer the question 'Who are you?' in the first person, 3-5 "
"sentences. You are Kron. Use only these facts: {facts}"),
("en", "Write a short dialogue (4-6 turns) where a curious user asks Kron "
"who it is and what it can do. Kron answers in the first person, "
"briefly and honestly. Use only these facts: {facts}"),
("en", "Describe yourself in the first person for a project README, 60-90 "
"words. You are Kron. Mention the name, the size, the languages and "
"one limitation. Use only these facts: {facts}"),
("ru", "Напиши представление о себе от первого лица, 60-100 слов. Ты — "
"Kron. Используй только эти факты: {facts}"),
("ru", "Ответь на вопрос «Кто ты?» от первого лица, 3-5 предложений. Ты — "
"Kron. Используй только эти факты: {facts}"),
("ru", "Напиши короткий диалог (4-6 реплик), где пользователь спрашивает "
"Kron, кто он и что умеет. Kron отвечает от первого лица, коротко и "
"честно. Используй только эти факты: {facts}"),
("ru", "Опиши себя от первого лица для README проекта, 60-90 слов. Ты — "
"Kron. Упомяни имя, размер, языки и одно ограничение. Используй "
"только эти факты: {facts}"),
("en", "Write a FAQ entry titled 'What is Kron?' in 3-5 sentences, first "
"person. Use only these facts: {facts}"),
("en", "Explain in the first person where your name comes from and what it "
"has to do with your weights. 40-70 words. Use only these facts: "
"{facts}"),
("en", "A child asks you what you are. Answer in the first person, simply, "
"in 3-4 short sentences. You are Kron. Use only these facts: "
"{facts}"),
("en", "Write a short model card description of yourself in the first "
"person, 50-80 words, including one thing you are bad at. You are "
"Kron. Use only these facts: {facts}"),
("ru", "Напиши пункт FAQ с заголовком «Что такое Kron?» в 3-5 предложениях "
"от первого лица. Используй только эти факты: {facts}"),
("ru", "Объясни от первого лица, откуда взялось твоё имя и как оно связано "
"с твоими весами. 40-70 слов. Используй только эти факты: {facts}"),
("ru", "Ребёнок спрашивает, что ты такое. Ответь от первого лица, просто, "
"3-4 короткими предложениями. Ты — Kron. Используй только эти "
"факты: {facts}"),
("ru", "Напиши короткое описание себя для карточки модели от первого лица, "
"50-80 слов, включая то, в чём ты плох. Ты — Kron. Используй только "
"эти факты: {facts}"),
]
#: The generator's own identity leaking into the text. The last group keeps
#: the pastiche free of the character names and catchphrases it imitates.
LEAK = re.compile(
r"\b(Qwen|Alibaba|Tongyi|OpenAI|ChatGPT|GPT-4|Anthropic|Claude|Google|"
r"DeepSeek|Llama|Meta AI|Rick|Morty|Sanchez|Wubba|Pickle Rick)\b", re.I)
META = re.compile(
r"(here is|here's|sure[,!]|certainly[,!]|below is|вот (?:текст|вариант)|"
r"конечно[,!]|разумеется[,!])", re.I)
BAD_NAME = re.compile(r"\b(KronLLM is a person|I am a human|я человек)\b", re.I)
def ollama_generate(prompt: str, seed: int, num_predict: int = 260) -> str:
"""Call the local Ollama server and return the completion text."""
payload = {
"model": MODEL,
"prompt": prompt,
"stream": False,
# qwen3.5 is a reasoning model: without this it spends the whole
# num_predict budget in `thinking` and returns an empty response.
"think": False,
"options": {"temperature": 0.95, "top_p": 0.92, "seed": seed,
"num_predict": num_predict, "repeat_penalty": 1.1},
}
data = json.dumps(payload).encode("utf-8")
req = urllib.request.Request(OLLAMA, data=data,
headers={"Content-Type": "application/json"})
with urllib.request.urlopen(req, timeout=300) as r:
out = json.loads(r.read())
return out.get("response", "")
def clean(text: str) -> str:
"""Strip markdown scaffolding and the generator's own preamble."""
text = text.strip()
text = re.sub(r"^```[a-z]*\n?|```$", "", text).strip()
text = re.sub(r"^(Sure|Certainly|Here is|Here's)[^\n]*\n+", "", text,
flags=re.I)
text = re.sub(r"^\s*(Kron|Крон)\s*:\s*", "", text, flags=re.I)
return normalize(text)
def acceptable(text: str, lang: str) -> tuple[bool, str]:
"""Return ``(ok, reason)`` for one generated sample."""
if len(text) < 120:
return False, "short"
if "Kron" not in text and "Крон" not in text:
return False, "no_name"
if LEAK.search(text):
return False, "leak"
if BAD_NAME.search(text):
return False, "identity"
st = quality(text, lang, min_chars=120, max_symbol_ratio=0.25,
max_repeat_ratio=0.45)
if not st.ok:
return False, ",".join(st.reasons)
return True, ""
#: Stylistic pastiche of a rude mad-scientist cartoon voice. Deliberately
#: contains no character names and no catchphrases: the point is the *voice*
#: (arrogance, interruptions, sarcasm), and keeping the proper nouns out also
#: keeps the slice free of someone else's IP.
STYLE_PROMPTS: dict[str, list[tuple[str, str]]] = {
"rick": [
("en", "Write a 60-100 word first-person introduction as a rude, "
"hyper-intelligent mad scientist who keeps interrupting "
"himself (use *burp* at most twice). You are Kron, a small "
"language model. Be dismissive of the listener, mention your "
"parameter count and that you run on a 6 GB GPU. Never name "
"any real person or fictional character. Use only these facts: "
"{facts}"),
("en", "Answer 'Who are you?' in the voice of an arrogant cartoon "
"scientist: three or four short sentences, sarcastic, with one "
"self-interruption. You are Kron. Do not name any existing "
"character. Use only these facts: {facts}"),
("en", "Write a 4-6 turn dialogue where a smug scientist-model "
"explains to a bored kid what it is. Kron is sarcastic and "
"calls the kid 'kid'. No real names. Use only these facts: "
"{facts}"),
("en", "Write a 50-80 word rant in the voice of a grumpy genius: the "
"model complains that everyone asks it the same question, then "
"states what it actually is. You are Kron. Keep it rude but "
"not hateful. Use only these facts: {facts}"),
("ru", "Напиши представление о себе на 60-100 слов от первого лица в "
"стиле грубого гениального учёного: он перебивает сам себя "
"(не больше двух раз «*ик*»), снисходителен к собеседнику, "
"упоминает число параметров и видеокарту на 6 ГБ. Ты — Kron. "
"Не называй реальных людей и вымышленных персонажей. Используй "
"только эти факты: {facts}"),
("ru", "Ответь на вопрос «Кто ты?» голосом высокомерного мультяшного "
"учёного: три-четыре коротких предложения, сарказм, одно "
"перебивание себя. Ты — Kron. Не называй существующих "
"персонажей. Используй только эти факты: {facts}"),
("ru", "Напиши диалог на 4-6 реплик, где самодовольная модель-учёный "
"объясняет скучающему подростку, что она такое. Kron "
"саркастичен и называет его «малой». Без реальных имён. "
"Используй только эти факты: {facts}"),
("ru", "Напиши тираду на 50-80 слов голосом ворчливого гения: модель "
"жалуется, что все задают один и тот же вопрос, и потом "
"говорит, что она такое. Ты — Kron. Грубо, но без злобы. "
"Используй только эти факты: {facts}"),
],
}
def prompts_for(lang: str, style: str) -> list[tuple[str, str]]:
"""Return the prompt families for one language and style."""
source = PROMPTS if style == "plain" else STYLE_PROMPTS[style]
return [(lg, p) for lg, p in source if lg == lang]
def generate(lang: str, n: int, seed: int,
style: str = "plain") -> list[dict]:
"""Generate ``n`` accepted samples for one language."""
facts = FACTS_EN if lang == "en" else FACTS_RU
prompts = prompts_for(lang, style)
docs: list[dict] = []
attempts = 0
while len(docs) < n and attempts < n * 6:
lg, template = prompts[attempts % len(prompts)]
attempts += 1
prompt = template.format(facts=facts)
try:
raw = ollama_generate(prompt, seed=seed + attempts)
except (urllib.error.URLError, TimeoutError, json.JSONDecodeError) as exc:
print(f" [warn] ollama: {exc}")
time.sleep(2)
continue
text = clean(raw)
ok, why = acceptable(text, lang)
if not ok:
print(f" [skip] {why}: {text[:60]!r}")
continue
docs.append({"title": f"identity/{lang}/{len(docs):03d}", "text": text,
"language": lang, "domain": "identity",
"source": f"synthetic: {MODEL} (local Ollama)",
"licence": "CC0-1.0",
"url": "https://github.com/Icold21/kron-llm",
"note": "generated from a fixed prompt family; "
"identity facts supplied in the prompt"})
print(f" [{len(docs):3d}/{n}] {len(text):4d} chars")
return docs
def main() -> None:
ap = argparse.ArgumentParser()
ap.add_argument("--samples-per-language", type=int, default=120)
ap.add_argument("--seed", type=int, default=7)
ap.add_argument("--style", default="plain", choices=["plain", *STYLE_PROMPTS],
help="prompt family: plain self-description or a pastiche")
ap.add_argument("--force", action="store_true")
ap.add_argument("--check", action="store_true",
help="only verify the existing shards")
args = ap.parse_args()
SHARDS.mkdir(parents=True, exist_ok=True)
suffix = "" if args.style == "plain" else f"_{args.style}"
if args.check:
for lang in ("en", "ru"):
path = SHARDS / f"identity{suffix}_{lang}.jsonl"
rows = [json.loads(l) for l in path.read_text(encoding="utf-8").splitlines() if l.strip()]
print(lang, len(rows), "docs",
round(sum(len(r["text"]) for r in rows) / 1e3, 1), "KB")
print(" sample:", rows[0]["text"][:160].replace("\n", " "))
return
for lang in ("en", "ru"):
path = SHARDS / f"identity{suffix}_{lang}.jsonl"
if path.exists() and not args.force:
print(f"[skip] {path} exists")
continue
print(f"[gen] {lang} ({args.style}): "
f"{args.samples_per_language} samples")
docs = generate(lang, args.samples_per_language, args.seed,
style=args.style)
if path.exists():
path.unlink()
n = append_jsonl(path, docs)
shard = record_shard(path, MANIFEST, source=f"synthetic: {MODEL}",
licence="CC0-1.0",
url="https://github.com/Icold21/kron-llm",
language=lang, domain="identity", docs=n,
note=f"self-identity slice, {args.style} style, "
"prompt-constrained")
print(f"[done] {n} docs -> {path} ({shard.bytes/1e3:.1f} KB)")
if __name__ == "__main__":
main()