Anysphere

9 tools · 5 companies · 13 verified facts — receipts on every one.

Composer Custom codebase indexing (Merkle trees + embeddings) Cursor Bench / BugBench (internal evals) Anyrun Online RL pipeline (Tab model) In-house expert data curation Sandboxed terminals (Seatbelt / seccomp + Landlock) Cursor Bugbot

Companies with Anysphere in the stack

Cursor (Anysphere) Klarna Notion Perplexity Shopify

All Anysphere facts

Cursor (Anysphere) · Composer

Flagship in-house model family specialized for agentic coding.

High confidence

Source last verified Jul 26, 2026 View fact with receipts →
Cursor (Anysphere) · Custom codebase indexing (Merkle trees + embeddings)

Indexes codebases with client-side change detection and server-side embeddings for search.

High confidence

Source last verified Jul 26, 2026 View fact with receipts →
Cursor (Anysphere) · Cursor Bench / BugBench (internal evals)

Internal benchmark suites built from real usage gate model releases.

High confidence

Source last verified Jul 26, 2026 View fact with receipts →
Cursor (Anysphere) · Anyrun

Internal compute platform running sandboxed cloud environments for RL rollouts.

High confidence

Source last verified Jul 26, 2026 View fact with receipts →
Cursor (Anysphere) · Online RL pipeline (Tab model)

Trains the Tab model continuously on live accept and reject feedback.

High confidence

Source last verified Jul 26, 2026 View fact with receipts →
Cursor (Anysphere) · In-house expert data curation

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

High confidence

Source last verified Jul 26, 2026 View fact with receipts →
Cursor (Anysphere) · Sandboxed terminals (Seatbelt / seccomp + Landlock)

Runs agent shell commands in OS-level sandboxes with restricted filesystem access.

High confidence

Source last verified Jul 26, 2026 View fact with receipts →
Cursor (Anysphere) · Cursor

Builds Cursor with Cursor through company-wide dogfooding.

High confidence

Source last verified Jul 26, 2026 View fact with receipts →
Cursor (Anysphere) · Bugbot

Reviews every internal pull request with Cursor's own AI reviewer.

High confidence

Source last verified Jul 26, 2026 View fact with receipts →
Klarna · Cursor

The CEO vibe-codes feature prototypes before handing them to engineering.

Medium confidence

Source last verified Jul 26, 2026 View fact with receipts →
Notion · Cursor

AI IDE in active use by Notion engineers.

Medium confidence

Source last verified Jul 26, 2026 View fact with receipts →
Perplexity · Cursor

Mandatory AI coding tool used across engineering and beyond.

Medium confidence

Source last verified Jul 26, 2026 View fact with receipts →
Shopify · Cursor

Standard AI code editor across engineering.

High confidence

Source last verified Jul 26, 2026 View fact with receipts →