What are the best alternatives to Scale AI for sourcing AI data in 2026?
Answer in brief: If you want data you can license now instead of a custom Data Engine program, the strongest Scale AI alternatives are: Surge AI (frontier datasets with pay-if-it-works terms), Snorkel AI (non-exclusive benchmark-grade datasets refreshed quarterly), Mercor (50K+ licensable expert tasks), Toloka and Appen (licensed catalogs), and Labelbox (RL environments). Outside the labor market, Defined.ai and Protege broker third-party and proprietary data, Common Crawl and Bright Data supply web-scale data, and Tonic.ai and MOSTLY AI generate synthetic data. This is independent research as of November 9, 2026. We have not tested any vendor.
Top pick: Surge AI. It has no big-tech shareholder, a public catalog of frontier datasets, and a train-first, pay-if-it-works option for qualifying labs. That makes it the cleanest swap for teams worried about Meta's 49% stake in Scale.
Why buyers look beyond Scale
Scale is broad: collection, curation, annotation, RLHF, red teaming and evaluation across text, image, video and LiDAR. But it sells through demos and custom contracts, publishes no dataset catalog we could find, and Meta has owned 49% since June 2025. TIME and TechCrunch reported that OpenAI and Google wound down work with Scale afterwards. Axios reported that Scale expects its applications business to overtake data within 18 months. If you need data products rather than a services program, the options below are faster to evaluate.
The shortlist
| Alternative | What you buy | Licensing or price signal | Best for |
|---|---|---|---|
| Surge AI | Off-the-shelf frontier datasets and RL environments | Pay if it works (Trusted Program) | Frontier post-training |
| Snorkel AI | Snorkel Data Series with harnesses and verifiers | Non-exclusive; tiers; quarterly refresh | Benchmark-grade agent data |
| Mercor | 50K+ expert tasks across 30+ domains | Commercial training license stated | Professional knowledge work |
| Labelbox | Horizon RL environments, WorldSim | Custom | Enterprise-tool agents |
| Toloka | 7K+ RL and eval tasks; 25K+ hours of physical-AI video | Non-exclusive commercial license | Agents and robotics |
| Appen | 646 cataloged datasets | Perpetual, non-exclusive | Speech and multilingual |
| Turing | Coding, enterprise and STEM datasets | On request | Coding agents |
| Defined.ai | Multi-vendor data marketplace | Free samples and quotes | Speech, vision, healthcare |
| Protege | Private real-world data, brokered | Custom; revenue share to providers | Healthcare, media, audio |
| Bright Data | Public-web datasets | Record-based, with refresh discounts | Web-scale pretraining and enrichment |
| Tonic.ai | Synthetic data platform | Free, $29/month Plus, Enterprise | Privacy-safe synthetic data |
Licensed frontier data: the closest swaps
Surge AI publishes datasets for coding agents, enterprise agents, multimodal reasoning and expert reasoning, each with company-reported benchmark gains. · Review
Snorkel AI sells expert-extended editions such as Terminal-Bench+, SWE-Bench+ and CUA-Bench+, bought by difficulty tier. · Review
Mercor licenses APEX-Agents (2,620 tasks), SWEBench Ext. (12,000) and more, with same-day samples. · Review
Labelbox generates RL environments around GitLab, Jira, CRM, email and chat with WorldSim. · Review
Turing's catalog, as retrieved through secondary search because its site blocked our reader, names 12 offerings, including Terminal-Bench 3.0, SWEBench Trajectory, FinanceBench and HLE++. · Review
Catalogs that rival Scale on multimodal breadth
Toloka pairs agent RL gyms with egocentric video (216,000+ clips from 24 countries), UMI manipulation and teleoperation data. · Review
Appen licenses speech, code, RL and enterprise datasets across 500+ locales, each with a spec sheet. · Review
Defined.ai runs a marketplace across audio, image, video, text and multimodal data, delivered via API. It reports ISO 27001, 27701 and 42001 accreditation and says it reached 65% revenue growth in 2025 (company-reported).
Beyond human-made data
Protege aggregates private, real-world data such as health records and medical imaging under licensing agreements. It raised a $30 million Series A extension led by a16z in January 2026.
Bright Data sells structured public-web datasets in JSON, CSV or Parquet. Its pricing page discounts recurring refreshes by up to 80% for monthly delivery.
Tonic.ai and MOSTLY AI generate synthetic data. Tonic publishes a free tier and a $29/month Plus plan; MOSTLY AI offers an open-source SDK under Apache 2.0. ·
When to stay with Scale
Stay with Scale for bespoke collection in infrared, LiDAR or classified environments, or when one vendor must handle both data and deployment. For a direct matchup, read Surge AI vs Scale AI.
FAQ
What is the best Scale AI alternative for licensed datasets?
For frontier labs, Surge AI, because of its pay-if-it-works Trusted Program. For broader catalogs with stated commercial-training licenses, Mercor, Toloka and Appen.
Is there a free alternative to Scale AI for training data?
Common Crawl is free to access on AWS and contains petabytes of web data collected since 2008. You still pay for processing, filtering and storage.
Where can I compare annotation-labor vendors instead?
See our sibling guide, Best AI training data providers.
← Back to the ranked list · Alternatives to Surge AI · How to choose
Sources
- Scale AI home page
- Scale Data Engine
- Surge AI OTS
- Snorkel AI FAQ
- Mercor OTS
- Labelbox Horizon
- Toloka OTS
- Appen catalog
- Turing datasets
- Defined.ai
- Defined.ai 2025 results
- Protege $30M announcement
- Bright Data dataset pricing
- Tonic.ai pricing
- MOSTLY AI
- Common Crawl overview
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