stack.tools

Data & Labeling

Labeling vendors and data pipelines for AI (Scale, Surge, Labelbox, synthetic data tooling).

4 verified facts across 4 companies

Cursor (Anysphere)

AI code editor and agentic coding platform (Agent, Tab, Composer, Bugbot, Cloud Agents).

In-house expert data curation by Anysphere

Engineers hand-curate gold-standard solutions for evaluation and benchmark data.

High confidence

Receipts · 1

Show quotes (1)
  • “along with hand-curated optimal solutions to these requests” — cursor.com, Oct 29, 2025

Source last verified Jul 26, 2026

Notion

Connected AI workspace for docs, wikis, projects, and enterprise search (Notion AI, Agents, Q&A).

AI LEAP Program by Notion

Opt-in program feeding customer workspace data into model improvement.

High confidence

Receipts · 1

Show quotes (1)
  • “allows for sharing of workspace data to improve underlying models” — notion.com, Jul 2026

Source last verified Jul 26, 2026

Perplexity

AI answer engine combining a proprietary web index with LLMs to deliver cited, conversational search.

In-house data curation by Perplexity

Curates multilingual post-training datasets with in-house experts.

Medium confidence

Receipts · 1

Show quotes (1)
  • “they built a dataset of 40,000 multilingual prompts to retrain the model” — hyperight.com, Feb 24, 2025

Source last verified Jul 26, 2026

Shopify

E-commerce platform powering millions of merchant storefronts and an AI merchant assistant (Sidekick).

Toloka

Supplies the human-annotated seed dataset calibrating automated training-data curation.

High confidence

Receipts · 2

Show quotes (2)
  • “We initially partnered with the Toloka team to produce a balanced dataset” — shopify.engineering, Jun 15, 2026
  • “If four independent models can't agree on a label, a human should make the call” — shopify.engineering, Jun 15, 2026

Source last verified Jul 26, 2026