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FineSet — your fine-tune deserves better training data
dangerlego5 · 2026-06-23 · via Hacker News: Show HN

Live on HuggingFace · datasets shipped

Describe a research area in plain English. FineSet pulls from arXiv, Semantic Scholar, GitHub and more — merges duplicates, scores them, and hands you clean JSONL or Parquet, refreshed on a schedule.

Pulls fromarXivSemantic ScholarGitHub+ othersShipsJSONLParquetHF push

4datasets live on HF

4,800+papers assembled

weeklyrefresh cadence

0.92dedup similarity cutoff

The problem

Assembling a training set by hand is the worst part.

You know the data exists. Getting it clean, deduplicated, and fresh is a week of glue code you rewrite for every project.

Doing it yourself

  • Scrape arXiv, then Semantic Scholar, then reconcile two schemas by hand.
  • Same paper, three times, under three slightly different titles.
  • No quality signal — you train on the noise too.
  • Stale the moment you download it. Re-run the whole mess next month.
  • Scrub PII and malformed records before anything touches your model.

With FineSet

  • Describe the topic once — sources are wired in for you.
  • Cross-source dedup merges the same record into one row.
  • Every record carries a 0–1 quality score you can filter on.
  • Refreshes on a schedule. Never just the version you downloaded last month.
  • PII stripped and fields normalized before it reaches you.

The pipeline

How it works

A topic you type becomes a clean dataset in three steps. No scrapers to write, nothing to maintain.

01

Describe your topic

Give it keywords and, if you want, arXiv categories. Something like "RLHF, cs.LG, since 2023".

02

The pipeline assembles it

It pulls from every source that fits, normalizes the fields, merges duplicates, scores quality, and strips PII.

03

Download JSONL

Export it and it stays fresh, refreshed every day. Parquet and a one-click push to HuggingFace are coming soon.

Try it

Type any topic, see real records.

No signup. Animals, cars, LLMs, RLHF — type anything. We check the shared pool first, and if it's a topic we don't cover yet we pull a live sample across arXiv, GitHub and Hacker News — papers, repos and threads.

What's inside

What's in every dataset

The boring, necessary work — done before the file reaches you, every refresh.

Scheduled refresh

Subscribe to a topic and new matching records flow in on a schedule. The dataset is never the stale copy you downloaded last month.

Cross-source dedup

The same record from different sources merges into one row, with every source kept — pgvector similarity at a 0.92 cutoff.

Quality scores

Every record carries a 0–1 score from citation signal, so you can filter the noise out before you ever start training.

JSONL today, more soon

One clean record per line, normalized fields, ready for your loader. Parquet and one-click push to HuggingFace are next.

PII stripped

Emails, phone numbers, and other PII are removed before anything is stored — so what you train on stays clean.

Your own topic

Not just our templates. Describe any research area or data domain and FineSet builds the pipeline for it.

Live now

Datasets already shipping

Download a sample in the exact JSONL you'd export — no account. The full dataset is a free account away.

Who it's for

Built for people who train models

Same pipeline, different output. If you need domain-specific records and you don't want to babysit scrapers, it's for you.

ML practitioners

Thousands of papers on your topic as a JSONL dataset that refreshes on a schedule. Quality scored, so you can filter out the noise before you train.

e.g. “RLHF, cs.LG, since 2023”

Researchers

Every new paper in your subfield, structured and deduplicated, waiting for you in the morning.

e.g. “mechanistic interpretability”

Builders

Tell it what data you want to track and the records keep flowing. No scrapers to write, none to babysit.

e.g. “LLM agents + tool use”

Pricing

Free while we're in beta.

No plans, no limits to weigh up. Build datasets and export them at no cost while we're early. Paid tiers come later — you'll hear about them first.

Free while in beta

$0

Every dataset, every export — free for now. No card, no plans to pick. We'll give plenty of notice before anything costs money.

Start for free

FAQ

Questions, answered straight.

How fresh is the data?

Pipelines refresh on a schedule. New papers land in your dataset the week they post to arXiv — no scraper to maintain.

What export formats are available?

JSONL today, with Parquet coming soon. The shape matches what's already on our HuggingFace datasets, so it's drop-in.

Can I use this data commercially?

FineSet aggregates open metadata (arXiv, Semantic Scholar) and records each source. You're responsible for honoring each source's license for your use.

What if my topic isn't covered yet?

Create a pipeline for it. We configure the sources, run the first refresh, and keep it updated — the dataset builds itself from there.

How does the quality score work?

Deterministic and transparent: derived from citation signal (log-scaled), not an opaque model. You can filter on it at export.

Is there an API?

Yes — the same endpoints the dashboard uses, so you can wire pipelines and exports into your own workflow.

Start with a free dataset today.

Subscribe to the shared pool, export your first JSONL, and spin up your own pipeline when you're ready. No credit card required.

Create a free account