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UPDATED 2026.10.05
rl-list.com · Vendors · Scale AI

Scale AI

Incumbent
high confidence
scale.com ↗ · Status: active (independent; Meta holds ~49% non-voting minority stake as of June 2025) confirmed · Founded 2016

Scale AI is the data-labeling and AI-data incumbent that has extended into RL environments (simulated web apps, macOS/Windows-like desktop VMs and MCP-tool environments with expert rubrics and automated verifiers). It runs a large public evaluation program through Scale Labs (SWE-Bench Pro, MCP Atlas, Humanity's Last Exam, Remote Labor Index). After Meta's ~$14.3B deal in June 2025 (~49% non-voting stake) and Alexandr Wang's move to Meta, several frontier labs reportedly scaled back work. In 2026 Scale grew mainly in government and enterprise: the Pentagon CDAO agreement ceiling rose to $500M, it acquired ICG Solutions, and Francis deSouza (ex-Google Cloud COO) became CEO in August 2026.

Key facts
Headquarters
San Francisco, California, USAconfirmed cite
Headcount band
200+confirmed cite
Total raised
$1.6Breported cite
Last round
Meta strategic investment, ~$14.3B for ~49% non-voting stake, June 2025 (valuing Scale at ~$29B); prior Series F ~$1B in May 2024 at ~$13.8B valuationreported cite
SOC 2
Type IIconfirmed cite
What they sell
mixed (human data / data labeling, RL environments, model evaluations and leaderboards, enterprise GenAI agent platform, defense and intelligence AI including Donovan and ICG LUX)confirmed cite
Open source
noestimated cite
Deployment
managed-hosted (vendor-operated environments/infrastructure to run agent training and evaluation; simulated APIs, MCP servers, GUIs)reported cite

What's new

14 sourced updates · last 6 months

Founding team

Alexandr Wang
Alexandr Wang
Co-founder; former CEO (2016-2025); Founder and Chairman per the 2026-07-30 announcement
Left MIT to co-found Scale in 2016 through Y Combinator. Earlier a software engineer at Quora and Addepar. Since June 2025 he has been Meta's Chief AI Officer, leading Meta Superintelligence Labs.
Lucy Guo
Lucy Guo
Co-founder (left in 2018)
Left Carnegie Mellon in 2014 as a Thiel Fellow. Interned at Facebook and was Snapchat's first female designer. Founded Backend Capital (2019) and Passes (2022).
Francis deSouza
Francis deSouza
CEO (announced 2026-07-30, effective 2026-08-10)
Previously COO and President of Security Products at Google Cloud, President and CEO of Illumina, and President of Products and Services at Symantec. Founded two companies acquired by Microsoft and Symantec. BS and MS in EECS from MIT.
Jason Droege
Interim CEO (June 2025 - August 2026); assisting the CEO transition
Joined Scale as Chief Strategy Officer in September 2024. Earlier, as Uber VP, he built Uber Eats from its first order in 2015 to a $19B GMV run rate by 2020.

What practitioners should know

For researchers

  • Scale Labs (labs.scale.com, launched 2026-03-09) extends SEAL and keeps a dated papers index. Its 2026 output centers on rubric rewards for RL (reward hacking, policy-aware rubrics, rubric-guided self-distillation), long-horizon agent environments (ChainWorld from OSWorld tasks, SWE-INTERACT, Spine-Branch multi-agent computer use), agent optimization (VeRO) and deployment evaluation (READY).
  • Open releases: SWE-Bench Pro (HF ScaleAI/SWE-bench_Pro; GitHub scaleapi/SWE-bench_Pro-os), MCP Atlas (HF ScaleAI/MCP-Atlas; GitHub scaleapi/mcp-atlas) and RSI Bench (GitHub scaleapi/rsi-benchmark). SWE-Bench Pro and MCP Atlas keep held-out private splits.
  • SWE-Bench Pro v2 shows a large public vs private gap (Claude Opus 5: 99.4% vs 81.6%), which Scale attributes mainly to training-time exposure. Treat public-split scores as likely contaminated.
  • The 'Who Grades the Graders?' study (2026-09-02) found that programmatic verifiers missed critical-number corruption in all 38 tested deliverables. It recommends deterministic checks plus vision-capable judges and corruption testing, which is a useful reference for reward design in computer-use environments.

For program managers

  • Leadership changed: Francis deSouza (ex-Google Cloud COO, ex-Illumina CEO) has been CEO since 2026-08-10, replacing interim CEO Jason Droege. Alexandr Wang (Meta Chief AI Officer) is still on the board and is called 'Founder and Chairman' in the announcement. Meta holds a ~49% non-voting stake from June 2025.
  • Momentum in the window is mostly government and enterprise: ICG Solutions acquisition (2026-04-20), DOE Genesis MOU (2026-05-01) and consortium membership (2026-07-16), Pentagon CDAO OTA ceiling raised to $500M (2026-05-06), GSA MAS listing (2026-05-20), Circadence cyber partnership (2026-06-24), Singapore IMDA evaluation MOU (2026-07-07), Mayo Clinic (2026-07-15) and the Google Cloud reference architecture (2026-09-22).
  • Company-stated scale: 700+ customers to date, 15B human decisions, $1B+ paid to contributors (2026-05-14 post), plus 1,000+ employees and a $29B valuation (scale.com/about). All self-reported.
  • No new primary funding round, tender or secondary was found for 2026-04 to 2026-10.
  • No public 2026 confirmation was found that OpenAI, Google DeepMind, Anthropic or xAI buy RL environments from Scale. Labs worried about Meta's stake should do their own diligence.

For data ops

  • Security: SOC 2 Type II, ISO/IEC 27001:2022, FedRAMP High Authorized, DoD IL4 Provisional Authorization (DISA). Trust Center at trust.scale.com. HIPAA is not listed on the security page; the Mayo work runs inside Mayo's own HIPAA-compliant environment.
  • RL Environments are a managed offering (simulated apps, desktop VMs, MCP servers) that claims 'standard environment interfaces' with trajectory tracking and state resets. No public API docs, self-host option or published interchange format was found.
  • Scale's open benchmarks ship as Docker-image environments with verifiers (SWE-Bench Pro) or containerized MCP servers (MCP Atlas). READY is built on Inspect AI.
  • Procurement vehicles through Carahsoft: GSA MAS 47QSWA18D008F, SEWP V, ITES-SW2, NASPO ValuePoint and OMNIA Partners. DoD components can use the CDAO production OTA without a new competition.

Benchmarks & research

15 published
SWE-Bench Pro (v2)benchmark · 22 Sep 2026
Long-horizon software-engineering agent benchmark. v2 has 642 public tasks across 11 repos, a 51-task Hard split, a 272-task private set and network-locked evaluation. Dataset: huggingface.co/datasets/ScaleAI/SWE-bench_Pro. Code: github.com/scaleapi/SWE-bench_Pro-os. The original v1 paper is dated 2025-09-19.
Claude Opus 5: 638/642 public (99.4%) vs 222/272 private (81.6%); Hard split leader Opus 5 (Claude Code) 98.00
Industry-specific suite (healthcare first: CliniCARE-Bench, PSEBench) that measures reliability, human-oversight rate and cost for agent-plus-human workflows. Built on Inspect AI.
Two systems with near-identical accuracy (72.8% vs 72.5%) needed different human review rates (39.2% vs 29.6%) to reach the same 76% reliability target
Scale Labs study of programmatic verifiers for agent deliverables. It recommends deterministic checks plus vision-capable judges and corruption (mutation) testing of verifiers.
None of 38 programmatic verifiers failed a deliverable with its most critical number corrupted; programmatic and VLM judges agreed on 99.5% of judge-passed items
DrugDiscoveryBenchbenchmark · 30 Jun 2026
82 expert-written early-stage drug-discovery agent problems, built with Phylo.
Top: GPT 6 Astra (mini-SWE-agent) 68.70 +/- 2.50
ChainWorld (2026-06-19) composes long-horizon desktop workloads from atomic OSWorld tasks. SWE-INTERACT (2026-06-29) recasts SWE benchmarks as user-driven long-horizon coding sessions. Spine-Branch (2026-08-27) covers multi-agent computer use.
Three coding-agent benchmarks in real repositories, 284 tasks in total.
Current leaders: Test Writing Fable-5.1 (Claude Code) 67.04 +/- 5.33; Codebase QnA Opus 5 (Claude Code) 63.17 +/- 5.01; Refactoring GPT 6 Astra and Fable-5.1 roughly 57-59
HiL-Bench (Human-in-the-Loop)benchmark · 13 Apr 2026
Measures agents' help-seeking judgment: whether they recognize unresolvable missing, ambiguous or conflicting information and ask targeted questions (ASK-F1, Pass@3).
Top: Claude Fable 5.1 61.50 +/- 6.47 Pass@3
MCP Atlasbenchmark · 18 Dec 2025
Real-world tool-use benchmark over Model Context Protocol servers: 1,000 tasks (500 public, 500 private), 36 MCP servers, 220 tools, with distractor tools. Code at github.com/scaleapi/mcp-atlas.
Top: Muse Spark 1.1, 88.1% pass rate
Expert-rubric benchmark of professional reasoning.
Top: Muse Spark 1.3 (Legal 61.56 +/- 1.72; Finance 59.54 +/- 1.66)
Remote Labor Index (RLI)benchmark · 28 Oct 2025
240 real Upwork freelance projects from 358 freelancers across 23 domains, worth $143,991 in total. Measures automation rate, Elo, dollars earned and cost savings.
Top automation rate: GPT 6 Astra 20.83%
A series of papers on rubric rewards for RL post-training and evaluation, dated 2025-09-25 to 2026-06-10 on the Scale Labs papers page.
Reasoning Gymenvironment · May 2025
Procedurally generated reasoning environments for RL with verifiable rewards (100+ generators and verifiers). It is listed on labs.scale.com/papers (2025-10-20), but the arXiv author list shows no affiliations and the code is the open-source open-thought/reasoning-gym project. Scale's role is unverified, so do not present it as a Scale-built product.
Expert-level frontier question benchmark (2,500 questions in the final version) developed with the Center for AI Safety. Scale Labs hosts main and text-only leaderboards, and its leaderboard index also lists an HLE Diamond board.
Main: GPT 6 Astra 54.80 +/- 1.94; Diamond: gpt-6-astra 60.60 +/- 3.00 (labs.scale.com, accessed 2026-10-05)
RSI Benchbenchmark
Ongoing benchmark of whether AI agents can carry out the stages of frontier AI R&D needed for recursive self-improvement. Code at github.com/scaleapi/rsi-benchmark. The release date is not stated on the page.
Leaderboards covering multimodal tool use, multi-turn conversation, multilingual reasoning, audio, puzzles, honesty, safety and propensity, tutoring, and scientific prediction.

Products

RL Environments ↗
Managed simulated environments for agent training and evaluation: browser-based SaaS and productivity apps, macOS- and Windows-like desktop VMs, and MCP servers for enterprise tools (Slack, HubSpot, Linear and others). Includes expert-designed objectives, rubrics, automated verifiers and 'standard environment interfaces' (trajectory tracking, state resets). The page names no customers.
Scale Data Engine ↗
Data labeling and human-data platform, including computer vision and ML operations.
Scale GenAI Platform / GenAI Portfolio (SGP) ↗
Enterprise platform for building, evaluating, tracing and operating AI agents. Google Cloud reference architecture published 2026-09-22; listed on the GSA MAS through Carahsoft since 2026-05-20.
Scale Donovan ↗
AI decision-support platform for defense and national security, authorized on NIPR, SIPR and JWICS under the CDAO OTA.
ICG LUX (via the ICG Solutions subsidiary) ↗
Real-time streaming data ingestion, correlation and alerting for defense and intelligence. Product of ICG Solutions, which Scale acquired on 2026-04-20.launched 20 Apr 2026
Scale Labs (research hub and public leaderboards) ↗
Research hub launched 2026-03-09 that extends SEAL. Hosts public model leaderboards (HLE, SWE-Bench Pro, SWE Atlas, MCP Atlas, RLI, HiL-Bench and others) and a papers index.launched 9 Mar 2026
Outlier ↗
Expert contributor platform for AI training work, described on its site as 'a platform operated by Scale AI'.

Scale & velocity

Current headcount
1,000+ (company-stated on scale.com/about, accessed 2026-10-05); Wikipedia infobox ~1,200 (2025)reported cite
Headcount growth
~14% FTE reduction in July 2025 (~200 cut from ~1,400) plus ~500 contractors; interim CEO signaled intent to staff up enterprise and government sales units in H2 2025reported cite
Open roles
unknown
Other locations
St. Louis, Missouri, USA (opened 2022)reported cite
Distributed / remote
unknown

Research depth

Has researchers
yesconfirmed cite
Researcher count
unknown
Backgrounds
unknown

Capital

Total raised
~$1.6B in disclosed equity rounds prior to Meta; Meta's June 2025 ~$14.3B was a strategic stake purchase (largely secondary/cash to existing holders), not a conventional primary funding round, so combining them into a single ~$15.9B 'raised' figure overstates capital raisedreported cite
Last round
Meta strategic investment, ~$14.3B for ~49% non-voting stake, June 2025 (valuing Scale at ~$29B); prior Series F ~$1B in May 2024 at ~$13.8B valuationreported cite
Investors
Meta Platforms, Accel, Amazon, Nvidia, Founders Fund, Index Ventures, Tiger Global Management, Dragoneer Investment Group, Greenoaks, Y Combinatorreported cite
Valuation
~$29B (post Meta June 2025 investment)reported cite
Revenue signals
~$870M revenue in 2024 (reported). Company guided ~$2B for 2025 (Bloomberg, Apr 2025; forward guidance, not audited). In May 2026 the company reported 700+ customers to date and $1B+ paid to contributors. Pentagon CDAO agreement ceiling raised from $100M to $500M in May 2026 (a ceiling, not booked revenue). No audited 2025 or 2026 revenue has been published.reported cite

Security & compliance

SOC 2
Type IIconfirmed cite
Other certifications
ISO/IEC 27001:2022, FedRAMP High Authorized, DoD IL4 Provisional Authorization (DISA)confirmed cite
Security page
https://scale.com/security (Trust Center: https://trust.scale.com/)confirmed cite

Product

What they sell
mixed (human data / data labeling, RL environments, model evaluations and leaderboards, enterprise GenAI agent platform, defense and intelligence AI including Donovan and ICG LUX)confirmed cite
Open source
noestimated cite
License
unknown
Deployment model
managed-hosted (vendor-operated environments/infrastructure to run agent training and evaluation; simulated APIs, MCP servers, GUIs)reported cite
Maturity
GA (RL Environments product publicly offered)reported cite
Notable customers
U.S. Department of War / DoD (CDAO production OTA, ceiling raised to $500M May 2026) verified Mayo Clinic (named Mayo executive quoted) verified BP (named in the company's CEO announcement) self-claimed U.S. Department of Energy (Genesis Mission MOU and consortium membership; partner, not a disclosed contract) self-claimed General Motors verified Cisco (logo on scale.com/about) self-claimed ⚑Cohere (logo on scale.com/about) self-claimed ⚑OpenAI (former; reportedly wound down work after the Meta deal) verified ⚑Google / Alphabet (former data customer that reportedly cut ties in 2025; Google Cloud is a 2026 reference-architecture partner) verified ⚑xAI (reportedly paused work after the Meta deal; not firmly confirmed) self-claimed cite

Buyer analysis

Best fit: Government, defense and enterprise buyers who want an established FedRAMP High / IL4 / SOC 2 vendor for expert-built RL environments, human data and evaluation, and who can buy through existing vehicles (CDAO OTA, GSA MAS via Carahsoft). Also researchers who use Scale Labs' public benchmarks (SWE-Bench Pro, MCP Atlas, HLE). Frontier labs should weigh Meta's ~49% stake.

How we verified this

2026-10-05 refresh: I opened every primary source in the draft and checked its date and claims. The main facts hold up: deSouza named CEO on 2026-07-30 (effective 2026-08-10), the CDAO OTA ceiling raised from $100M to $500M on 2026-05-06, the ICG Solutions acquisition on 2026-04-20, the GSA listing, the DOE MOU, Mayo Clinic, the Google Cloud architecture, Ten Years of Scale, SWE Atlas, DrugDiscoveryBench, READY and SWE-Bench Pro v2. I corrected the SWE-Bench Pro v2 private score for Opus 5 from 82.3% to 81.6% (222/272). I removed a wrong paper link and unconfirmed OSWorld framing from the verifier study, and removed Donovan from the Google Cloud item. I dropped the Scale Labs launch from news because it predates the window. I caveated Reasoning Gym, which is an open-thought project with unverified Scale authorship, and removed an unsourced location estimate. I relabelled DOE as a self-claimed partner. I checked the Scale blog sitemap for missed items and added the Singapore IMDA MOU, Genesis Mission Consortium membership, the Circadence collaboration, VeRO and HiL-Bench. All three founder and CEO photos resolve to single-person portraits from Wikipedia or Scale's own CEO announcement; Droege has no verified photo. No funding, tender, shutdown or new frontier-lab deal was found. Web search quota was exhausted in this session, so the check for missed items relied on the Scale blog sitemap, the Scale Labs papers index and a Google News RSS index rather than open web search. Third-party coverage outside those indexes could have been missed.

Related vendors

Sources

  1. scale.com/blog/scale-appoints-new-ceo · 2026-10-05, CEO announcement 2026-07-30, effective 2026-08-10; deSouza background; Droege transition; Wang called 'Founder and Chairman'; BP and Mayo named; deSouza photo
  2. scale.com/blog/scale-ai-pentagon-cdao-500-million-agreement · 2026-10-05, CDAO production OTA raised from $100M to $500M, 2026-05-06
  3. scale.com/blog/scale-acquires-icg-solutions · 2026-10-05, ICG Solutions acquisition, 2026-04-20; terms and location not disclosed
  4. scale.com/blog/scale-labs · 2026-10-05, Scale Labs launch, 2026-03-09, extends SEAL
  5. scale.com/blog/ten-years-of-scale · 2026-10-05, 2026-05-14 anniversary post by Jason Droege: 700+ customers, 15B decisions, $1B+ paid to contributors
  6. scale.com/blog/deploying-enterprise-ai-agents-with-scale-and-google-clou · 2026-10-05, Google Cloud reference architecture, 2026-09-22, Doha Summit
  7. scale.com/blog/mayo-clinic-scale · 2026-10-05, Mayo Clinic collaboration, 2026-07-15, quote from Matthew Callstrom
  8. scale.com/blog/scale-ai-gsa-schedule-available · 2026-10-05, GSA MAS through Carahsoft, plus SEWP V, ITES-SW2, NASPO, OMNIA; 2026-05-20
  9. scale.com/blog/scale-ai-doe-genesis-mission-mou · 2026-10-05, DOE Genesis Mission MOU, 2026-05-01
  10. scale.com/blog/scale-ai-joins-genesis-mission-consortium · 2026-10-05, Genesis Mission Consortium membership, 2026-07-16
  11. scale.com/blog/singapore-imda-mou · 2026-10-05, Singapore IMDA MOU (formalized April 2026), announced 2026-07-07
  12. scale.com/blog/scale-circadence-ai-driven-cyber-readiness · 2026-10-05, Circadence collaboration, 2026-06-24
  13. scale.com/blog/vero · 2026-10-05, VeRO agent-optimization framework, blog 2026-07-06
  14. scale.com/blog/swe-atlas-complete · 2026-10-05, SWE Atlas completion, 2026-05-07
  15. scale.com/blog/drugdiscoverybench · 2026-10-05, DrugDiscoveryBench with Phylo, 2026-06-30
  16. scale.com/blog/scale-ai-announces-next-phase-of-company-evolution · 2026-10-05, June 2025: Meta investment at $29B+ valuation; Wang stays as director; Droege background (CSO since Sept 2024, ex-Uber Eats)
  17. scale.com/blog/sitemap.xml · 2026-10-05, Index of 2026 blog posts (lastmod), used to find posts in the window; each post's date was confirmed on the post itself
  18. labs.scale.com/leaderboard · 2026-10-05, All Scale Labs leaderboards and current leaders
  19. labs.scale.com/papers · 2026-10-05, Scale Labs paper list with dates
  20. labs.scale.com/blog/swe-bench-pro-v2 · 2026-10-05, SWE-Bench Pro v2, 2026-09-22; Opus 5 638/642 public vs 222/272 private
  21. labs.scale.com/leaderboard/swe_bench_pro_public_v2 · 2026-10-05, SWE-Bench Pro v2 leaderboard
  22. labs.scale.com/blog/ready · 2026-10-05, READY benchmark, 2026-09-03
  23. arxiv.org/abs/2609.02095 · 2026-10-05, READY or Not: Reliable Enterprise Agent Deployment (paper)
  24. labs.scale.com/blog/verifier-design-for-cua · 2026-10-05, 'Who Grades the Graders?' verifier study, 2026-09-02
  25. labs.scale.com/leaderboard/humanitys_last_exam · 2026-10-05, HLE leaderboards, with Center for AI Safety
  26. labs.scale.com/leaderboard/hil · 2026-10-05, HiL-Bench details and leader
  27. labs.scale.com/rsi-benchmark · 2026-10-05, RSI Bench; GitHub scaleapi/rsi-benchmark
  28. labs.scale.com/leaderboard/mcp_atlas · 2026-10-05, MCP Atlas details
  29. huggingface.co/datasets/ScaleAI/MCP-Atlas · 2026-10-05, MCP Atlas dataset (resolves)
  30. labs.scale.com/leaderboard/rli · 2026-10-05, Remote Labor Index details
  31. arxiv.org/abs/2505.24760 · 2026-10-05, Reasoning Gym paper; authors listed without Scale affiliation; repo open-thought/reasoning-gym
  32. scale.com/about · 2026-10-05, CEO deSouza, 1,000+ employees, $29B valuation, logos (Meta, Cohere, Adept, Cisco, TIME)
  33. scale.com/rlenvironments · 2026-10-05, RL Environments product page; no named customers or figures
  34. scale.com/security · 2026-10-05, SOC 2 Type II, ISO 27001:2022, FedRAMP High, DoD IL4 PA
  35. outlier.ai · 2026-10-05, 'Outlier is a platform operated by Scale AI'
  36. en.wikipedia.org/wiki/Alexandr_Wang · 2026-10-05, Wang background; infobox photo
  37. en.wikipedia.org/wiki/Lucy_Guo · 2026-10-05, Guo background; infobox photo
  38. en.wikipedia.org/wiki/Scale_AI · 2026-10-05, Confirms deSouza as CEO (July 2026) and Scale Labs; infobox valuation is stale ($14B, May 2024)
  39. news.google.com/rss/search?q=%22Scale+AI%22+when:180d&hl=en-US&gl=US&cei · 2026-10-05, Press index only, used to look for missed items. It shows Reuters and Axios coverage of the CEO appointment and Bloomberg and Forbes coverage of the $500M DoD deal. Individual articles were not opened and are not cited for any claim.
  40. scale.com/blog/rl-environments · 2026-06-07, Blog: The Next Frontier of Data Training: RL Environments
  41. scale.com/blog/soc2-hipaa · 2026-06-07, SOC 2 Type II and HIPAA compliance announcement
  42. techcrunch.com/2025/06/13/scale-ai-confirms-significant-investment-from- · 2026-06-07, Meta ~$14.3B, ~49% stake, ~$29B valuation, Wang departure
  43. techcrunch.com/2025/09/21/silicon-valley-bets-big-on-environments-to-tra · 2026-06-07, Industry context on RL environments; Scale among vendors
  44. www.cnbc.com/2025/07/16/scale-ai-cuts-14percent-of-workforce-after-meta- · 2026-06-07, 14% layoff (~200 FTE) from ~1,400 workforce; OpenAI/Google/xAI scaling back
  45. techcrunch.com/2024/05/21/data-labeling-startup-scale-ai-raises-1b-as-va · 2026-06-07, Series F $1B May 2024 at $13.8B valuation
  46. news.crunchbase.com/ai/scale-holistic-raise-big-accel-nvda-amzn/ · 2026-06-07, Series F investors: Accel, Amazon, Nvidia, Meta etc.
  47. www.linkedin.com/company/scaleai · 2026-06-07, Public LinkedIn company page (headcount band varies by source)
  48. fortune.com/2025/06/14/self-made-billionaire-college-dropout-alexandr-wa · 2026-06-07, Meta $14.3B deal context
Last updated 2026-10-05 · Every quantitative field carries a source and a confidence tag. Fields we could not source publicly are marked unknown, never estimated. See the methodology.