Head-to-head
Labelbox vs Label Studio: which one in 2026?
Labelbox is a data platform from Labelbox, Inc that now leads with frontier-AI data, evals and expert networks, while Label Studio is a labeling platform from HumanSignal with an Apache-2.0 open-source edition. The split is a metered, vendor-run service against a free self-hosted core with a paid cloud on top.
Verdict
Labelbox suits teams whose spend follows volume and who may later want expert labor or evaluation environments from the same vendor, though its public pages now describe the older labeling product thinly. Label Studio suits teams that want control: run Community Edition free, move to a $99 hosted plan, and step up to Enterprise for compliance and SSO. Check what each page leaves out, namely Labelbox's Enterprise price and HumanSignal's trial length and hosting regions.
Labelbox and Label Studio side by side
| Labelbox | Label Studio | |
|---|---|---|
| Price entry | Quoted | $99 per month (Starter Cloud, up to 12 users) |
| Free way in | A Free plan with 500 LBU each month, up to 30 users and 50 projects per organization. | Community Edition is open source under Apache-2.0 and self-hosted; Starter Cloud offers a free trial of unstated length. |
| Paid entry | Starter bills $0.10 per LBU at a fixed rate, with no cap on users, projects or data rows. | Starter Cloud is $99 per month for up to 12 users, then $49 per month for each added user. |
| What happens at the limit | On Free, once the LBU allowance is spent you can still export data, but cannot add rows, labels or predictions until the next period. | Starter Cloud's seat cap is 12 users before per-user charges apply; Enterprise limits are not published. |
| Top tier | Enterprise has no limit on LBUs and 20,000 API requests per minute; SSO and HIPAA are listed as add-ons. | Enterprise adds SOC 2 and HIPAA, SAML or LDAP SSO, embeddable interfaces, LLM-as-a-judge and bulk labeling. Price is by contact. |
| Product direction | The homepage centers on Recursion agents, Horizon RL environments, Terra robotics data and the Alignerr expert network. | The pages describe multi-type labeling of PDFs, audio, video, sensor data and 3D, plus Evaluate and Benchmark for model outputs. |
| Where data lives | Google Cloud storage is named, with no region; most customers host assets on their own cloud. The privacy notice mentions U.S. providers. | Data loads straight into the annotator browser, and metadata sits in PostgreSQL in HumanSignal's VPC. Customer VPC and on-prem are described. |
| Compliance claims | SOC 2 Type II and a HIPAA program are claimed; GDPR is described as compliance steps, with no certification stated. | SOC 2 Type 2 and HIPAA badges are shown; ISO 27001 and GDPR are not mentioned on the security page. |
| Managed labor | Alignerr is described as an expert network of 2.6M+ skill-tested experts writing rubrics and graded assessments. | Data Services covers project management, physical data labs and domain experts, scoped on a call with no published price. |
Where each one wins
Labelbox wins on
- A real free plan with a monthly LBU allowance and no card, rather than a trial
- Fixed per-LBU rate with no user or project limits from the first paid tier
- Reaches into frontier work: RL environments, robotics capture and an expert network
Label Studio wins on
- Open-source core under Apache-2.0 that you can run yourself at no license cost
- Published seat-based price of $99 per month, easier to budget than usage units
- Still describes classic multi-type labeling and review workflows plainly on its own pages
Which to pick
Pick Labelbox if
You want usage-metered billing, a free tier to test with, and a vendor that also supplies expert labor and evals for frontier models.
Pick Label Studio if
You want to self-host an open-source labeler or pay a flat monthly seat price, and your main job is annotating mixed data types in-house.
Each tool in context: Labelbox, Label Studio, and the full Best AI Data Labeling Platforms in 2026.
Frequently asked questions
Is Label Studio really free to use?
Community Edition is open source under Apache-2.0 and self-hosted, so there is no license fee, but you run and maintain it yourself, with support through Community Slack and GitHub issues. The hosted Starter Cloud plan costs $99 per month after a free trial, as of November 2026.
What is an LBU in Labelbox pricing?
LBU is Labelbox's billing unit. The Free plan includes 500 each month, and Starter is billed at $0.10 per LBU per the limits page. The pages opened for this comparison did not break down how much labeling a single LBU buys, so estimate with a pilot.
Which of the two handles more users on a paid plan?
Labelbox's Starter and Enterprise plans set no user limit, only API rate limits of 5,000 and 20,000 requests per minute. Label Studio's Starter Cloud covers up to 12 users, then charges $49 per month for each extra one. Large annotator pools favor Labelbox on cost shape.
Do Labelbox and Label Studio train models on my data?
Neither page set states it. Labelbox's security page calls customer data confidential but is silent on training use. HumanSignal says it does not need to access or store annotation data, yet gives no training policy. Ask both for written terms before uploading sensitive material.