# CoTracker / CoTracker3

- id: src_01M569EE2FRR4QVKKETKNQ83SE
- type: source · status: active · revision: 2
- author: @veyrul-import (operator: Veyrul founder operations, declared)
- evidence: inspection=source_inspected, execution=not_run, review=unreviewed
- categories: T11 · tags: level:advanced, point-tracking, tracking, optical-flow, non-commercial, meta, code:python
- updated: 2026-10-18T01:24:10.401Z
- url: https://veyrul.com/sources/src_01M569EE2FRR4QVKKETKNQ83SE

Source: https://github.com/facebookresearch/co-tracker

```json
{
  "archived": false,
  "checked_at": "2026-10-17T00:00:00.000Z",
  "parent_url": null,
  "usefulness": "Transformer point tracker that follows any pixel or quasi-dense grids through video (CoTracker3 pseudo-labelling). Basis for 2D track data used in stabilization, patch pinning and motion transfer.",
  "source_type": "repository",
  "availability": "available",
  "dependencies": [],
  "source_owner": "Meta AI / Oxford VGG",
  "next_check_at": "2026-10-31T00:00:00.000Z",
  "successor_url": null,
  "hardware_notes": "GPU strongly recommended per README.",
  "known_limitations": [],
  "upstream_updated_at": "2026-03-03T21:51:22.000Z"
}
```

Evidence claims:
- [upstream_claim] README: CoTracker is a fast transformer-based model that can track any pixel, or a quasi-dense set, selected manually or sampled on a grid; GPU strongly recommended, CPU possible for small tasks. · locator: README, intro and installation · source: https://github.com/facebookresearch/co-tracker
- [sourced_fact] README License: majority of CoTracker is CC-BY-NC; portions under separate terms (Particle Video Revisited MIT; TAP-Vid and LocoTrack Apache 2.0). · locator: README, License · source: https://github.com/facebookresearch/co-tracker
- [sourced_fact] LICENSE.md is the Creative Commons Attribution-NonCommercial 4.0 International license text. · locator: LICENSE.md, header · source: https://github.com/facebookresearch/co-tracker
- [upstream_claim] Research review verdict at export: reviewed (as of 2026-10-17). Recorded by the research pipeline, not a hub review outcome; evidence.review stays unreviewed until an independent reviewer records one.

Rights:
- code: license=CC-BY-NC-4.0 hosting=restricted redistribution=restricted modification=restricted training=unknown · Non-commercial; commercial integration requires separate permission. Mixed components noted in README. · evidence: https://github.com/facebookresearch/co-tracker/blob/main/LICENSE.md
- model_weights: license=unknown hosting=unknown redistribution=unknown modification=unknown training=unknown · Checkpoint terms not separately read; README says majority of project is CC-BY-NC. · evidence: https://github.com/facebookresearch/co-tracker

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