University of Washington RAIVN Lab logo

University of Washington RAIVN Lab

Research labSeattle, WA, United States

Reasoning, AI and Vision lab in UW's Allen School led by Ali Farhadi and Ranjay Krishna; released the SAM2Act manipulation policy.

Overview

The RAIVN (Reasoning, AI, and VisioN) Lab is the computer vision and reasoning lab in the Allen School at the University of Washington, led by Ali Farhadi and Ranjay Krishna. In January 2025 UW researchers released SAM2Act, a multi-view transformer manipulation policy that uses SAM2 visual features, and SAM2Act+, which adds a memory architecture for memory-dependent tasks. The lab's members also co-author Ai2's MolmoAct models, listed separately.

Sources: raivn.cs.washington.edu (19 Oct 2026) · arxiv.org (30 Jan 2025)

Type
Research lab
Headquarters
Seattle, WA, United Statesraivn.cs.washington.edu, 19 Oct 2026

Key people

  • Haoquan FangLead author, SAM2Actarxiv.org, 30 Jan 2025
  • Jiafei DuanSenior author (equal advising), SAM2Actarxiv.org, 30 Jan 2025
  • Ranjay KrishnaSenior author (equal advising), SAM2Actarxiv.org, 30 Jan 2025
  • Dieter FoxCo-author, SAM2Actarxiv.org, 30 Jan 2025

Funding history

Research lab · University research lab at the University of Washington; no separate funding.

Ranking

#47 of 104 model companies · score 36.6 / 100 · updated 19 Oct 2026

  • Published benchmarks 35%0%
  • Open weights 20%100%
  • Adoption 20%50%
  • Released models 15%20%
  • Disclosed funding 10%n/a

Each bar shows an input from 0 to 100% before weighting. 1 of 1 listed models have open weights. Most-starred official repository: sam2act/sam2act (250 stars, 19 Oct 2026).

How we rank model companies

The score (0–100) measures public, checkable evidence about a company's robot models. It does not measure private capability. A company that publishes no benchmark results and no weights can still have strong models. Every input is computed from the data on each company page, and every number there links to its source.

InputWeightHow it is measured
Published benchmarks35%For each scored benchmark, the company's best result divided by the best result any company has published, averaged over the benchmarks it reports. No published results scores 0. Results come only from the model's own paper, model card or the official benchmark leaderboard. Scored: LIBERO (4-suite average success, %); SimplerEnv Google Robot, visual matching (%); SimplerEnv Google Robot, variant aggregation (%); SimplerEnv WidowX / Bridge (%); CALVIN ABC→D (average length, 0–5); RoboArena (pairwise rating).
Open weights20%Share of the company's listed models whose weights the public can download.
Adoption20%GitHub stars on the company's most-starred official model repository, on a log scale relative to the most-starred repository in the list. Hugging Face downloads are shown on company pages but not scored, because gated repositories report zero.
Released models15%Number of publicly announced, named models, capped at 5.
Disclosed funding10%The sum of the funding rounds listed on the company's profile that were disclosed in USD, on a log scale from $10M to the largest sum in the list. Rounds reported only in other currencies are listed but not converted or counted. This input applies only to private startups and robot makers. For big-tech divisions, research labs and listed companies it is n/a, and its weight is shared across the other inputs in proportion.

Sources. arXiv papers and official model cards for benchmarks and parameters; official leaderboards (RoboArena); the GitHub and Hugging Face APIs for stars and downloads; company announcements and established press for funding. Missing values are shown as n/a, never estimated.

Updated 19 Oct 2026. Benchmark protocols differ between papers, for example in fine-tuning and number of trials, so small gaps between close scores are not meaningful.

Submit or correct data →

Open-weights models (1)

University of Washington RAIVN Lab logo

SAM2Act

Open weightsPolicy

Multi-view keyframe manipulation policy built on SAM2 visual features, with a SAM2Act+ variant adding a memory bank for memory-dependent tasks; evaluated on RLBench and a real Franka.

Released
30 Jan 2025
Parameters
n/a
License
Apache-2.0
Embodiments
single-arm
GitHub stars
250 as of 19 Oct 2026
HF downloads (all time)
n/a

No benchmark results on a shared public benchmark have been published for this model.