Surge AI vs Scale AI: which is the better source of AI training data in 2026?
Answer in brief: Choose Surge AI if you want to license ready-made frontier data and see results before you commit. Its off-the-shelf catalog covers coding agents, enterprise agents, multimodal reasoning and expert reasoning. Labs in its Trusted Program can train on a full dataset and pay only if the agreed metrics improve. Choose Scale AI if you need data collected, curated and annotated to your own specification across text, image, video and LiDAR, bought through a demo and a custom contract. This comparison is independent research based on both companies' public pages as of November 9, 2026. We have not tested either vendor.
Top pick for buying data products: Surge AI. Few vendors offer a pay-if-it-works option on licensed datasets. If your lab qualifies, that removes most of the risk of buying data you have not tried.
The head-to-head at a glance
| Factor | Surge AI | Scale AI |
|---|---|---|
| What you buy | Licensable off-the-shelf datasets, evaluations and RL environments, plus custom work | Custom data through the Data Engine: collection, curation, annotation, RLHF, red teaming, evaluation |
| Public catalog | Yes, partial; the full catalog is available on request | No public dataset catalog found; sold as a service |
| Modalities | Code repositories, shells, tool use, enterprise documents, charts, text | Text, image (electro-optical, infrared), video, 3D sensor fusion and LiDAR |
| Proof before purchase | Benchmark gains published for each dataset (company-reported); Trusted Program lets labs train first and pay if it works | Demo, then a scoped contract |
| Published prices | None | None |
| Ownership | Says it has been profitable without venture funding | Meta bought a 49% stake in June 2025 |
| Best for | Post-training teams that want data in days, not months | Enterprise, government and physical-AI programs that need bespoke multimodal data |
Surge AI: frontier data off the shelf, with proof attached
Surge's catalog page leads with results. It reports that Kimi K2.7 rose from 19.6% to 35.9% on GDPval after training on its enterprise agents dataset. It also reports that Nemotron 3.5 Super rose from 14.8% to 27.5% on AutomationBench after training on its Long-Horizon Tool-Use dataset. These are company-reported numbers, not independent audits. Still, each one names the benchmark a dataset targets, which makes shortlisting fast.
- Coding agents: Real-World Software Engineering (tasks inside complete codebases, compatible with SWE-bench out of the box) and End-to-End Software Engineering built from real company codebases.
- Enterprise agents: Long-Horizon Tool-Use RL environments across office documents, enterprise workflows and live external services, plus Frontier Work deliverables in tax, accounting, finance, healthcare, data science and engineering.
- Multimodal reasoning: Enterprise Document Reasoning over filings, invoices, schematics and medical records, and Professional Chart Understanding.
- Expert reasoning: Complex Instruction Following and Advanced STEM Reasoning, each with verified answers and expert explanations.
Read the license carefully. Surge's public enterprise-pilot terms grant a paid, time-limited evaluation license that excludes model training. Training rights come under the Trusted Program or a separate commercial agreement. Know which one you are signing.
Scale AI: a data engine built to your spec
Scale describes its Data Engine as a loop: collect, curate and annotate data, train and evaluate models, and repeat. Its Generative AI Data Engine adds prompt-response generation, RLHF, red teaming and evaluation. Supported inputs run from document processing and transcription to full-motion video and LiDAR. That is the widest modality range of any company on our ranked list. Scale says 25% of its contributors hold advanced degrees and that 90% of the world's leading generative AI model builders are powered by Scale (company claims). Its home page also features physical-AI work, including real-world training data for Physical Intelligence's robotic foundation models.
The neutrality question. Meta owns 49% of Scale. TIME and TechCrunch reported that OpenAI and Google wound down work with Scale afterwards. If you compete with Meta, ask in writing how your data, prompts and outputs are isolated.
When to pick which
- Pick Surge AI when the data you need already exists as a product (coding agents, tool use, document reasoning, STEM) and you want samples or a train-first trial instead of a months-long build.
- Pick Scale AI when the data does not exist yet: sensor fusion, infrared imagery, classified or regulated public-sector data, or a bespoke multimodal collection program.
- Use both when you license a Surge dataset for a fast baseline and commission Scale for the gaps only your own collection can fill.
Pricing model
Neither company publishes prices. Surge sells off-the-shelf data under custom terms, with pay-if-it-works for Trusted Program labs; its pilots are paid evaluation licenses. Scale sells through a demo and custom enterprise or government contracts. To compare quotes, see how AI data companies charge.
FAQ
Can I train a model on a Surge pilot dataset?
Not under the enterprise-pilot terms, which exclude training. Trusted Program labs can train on the full dataset first and pay only if it improves the agreed metrics.
Does Scale AI sell off-the-shelf datasets?
We found no public off-the-shelf catalog on scale.com. Scale positions the Data Engine as a custom service for collecting, curating and annotating data.
Is Scale AI still neutral?
Scale is legally independent, but Meta holds 49%. Buyers who compete with Meta should ask how their data is isolated.
I need annotators, not datasets. Where should I look?
Our sibling guide to the best AI training data providers covers labeling and expert-labor vendors.
Keep comparing
← Back to the ranked list of the best AI data companies · Alternatives to Scale AI · Alternatives to Surge AI · Mercor vs Surge AI · How to choose an AI data company
Sources
- Surge AI: Off-the-Shelf Frontier Data
- Surge AI: Enterprise Pilot Terms of Sale
- Scale AI: Data Engine
- Scale AI home page
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