18+ Best Alternatives to Labelbox in 2026
RL data engine and human expertise platform for training frontier AI
Looking for an alternative to Labelbox? Below are 18 AI startups working in the same space — ranked by our Neuron score so the most credible options come first. Each card shows what makes the tool a viable substitute, pricing signals, and funding stage.
- 1View alternative →
MOSTLY AI
UndisclosedUnlock the power of data with a platform for secure access, high-quality synthetic data generation, and seamless data analysis.
Why it's similar: Shares categories with Labelbox — Data Labeling, Synthetic Data.
💵 Enterprise · Contact sales
- 2View alternative →
Tonic.ai
UndisclosedUnblock AI training, development, and testing workflows with safe, realistic synthetic data from your production patterns or from scratch.
Why it's similar: Shares categories with Labelbox — Data Labeling, Synthetic Data.
💵 Enterprise · Contact sales
- 3View alternative →
Scale AI
$14.3BData labeling and AI infrastructure platform powering frontier models for enterprises and governments.
Why it's similar: Shares categories with Labelbox — Data Labeling, Synthetic Data.
💵 Enterprise · Contact sales
- 4View alternative →
Kili Technology
$31.9MEnterprise data labeling and annotation for AI teams
Why it's similar: Shares categories with Labelbox — Data Labeling.
💵 Enterprise · Contact sales
- 5View alternative →
Invisible Technologies
$144MAI training data and enterprise automation platform
Why it's similar: Shares categories with Labelbox — Data Labeling.
💵 Custom
- 6View alternative →
V7
$36MStop reading documents, start making decisions
Why it's similar: Shares categories with Labelbox — Data Labeling.
💵 Contact_sales
- 7View alternative →
Datacurve
$17.7MFrontier coding data for training LLMs
Why it's similar: Shares categories with Labelbox — Data Labeling.
💵 Custom
- 8View alternative →
Synthesized
$20MAI that automates software testing and test-data generation for the AI era
Why it's similar: Shares categories with Labelbox — Synthetic Data.
💵 Free
- 9View alternative →
AfterQuery
$30MExpert reasoning datasets and benchmarks for frontier AI
Why it's similar: Shares categories with Labelbox — Data Labeling.
💵 Free
- 10View alternative →
Wirestock
$23MPremium multimodal data from a global network of creative professionals for AI training.
Why it's similar: Shares categories with Labelbox — Data Labeling.
💵 Custom
- 11View alternative →
Abundant
$4.5MRL environments and human-in-the-loop for agents
Why it's similar: Shares categories with Labelbox — Synthetic Data.
💵 Custom
- 12View alternative →
Pleias
UndisclosedParis lab training small open models on fully open, rights-cleared data
Why it's similar: Shares categories with Labelbox — Synthetic Data.
💵 Enterprise · Contact sales
- 13View alternative →
micro1
$35MHuman intelligence infrastructure for high-quality AI training data
Why it's similar: Shares categories with Labelbox — Data Labeling.
💵 Enterprise · Contact sales
- 14View alternative →
Surge AI
UndisclosedSurge AI provides human intelligence to transform raw data into advanced artificial general intelligence (AGI).
Why it's similar: Shares categories with Labelbox — Data Labeling.
💵 Enterprise · Contact sales
- 15View alternative →
Snorkel AI
UndisclosedSnorkel AI helps frontier labs and AI teams develop specialized training data and environments to differentiate their models and agents.
Why it's similar: Shares categories with Labelbox — Data Labeling.
💵 Enterprise · Contact sales
- 16View alternative →
DatologyAI
UndisclosedCurate and optimize the best possible data for training high-performing AI models at lower costs.
Why it's similar: Shares categories with Labelbox — Data Labeling.
💵 Enterprise · Contact sales
- 17View alternative →
Reducto
UndisclosedAI document parsing & extraction software that unlocks data from complex documents with high accuracy.
Why it's similar: Shares categories with Labelbox — Data Labeling.
💵 Enterprise · Contact sales
- 18View alternative →
NVIDIA Synthetic Data Generation for Agentic AI
UndisclosedAccelerate the development of agentic workflows with high-quality, domain-specific synthetic data.
Why it's similar: Shares categories with Labelbox — Synthetic Data.
💵 Enterprise · Contact sales
Frequently asked questions
What are the best alternatives to Labelbox?
The top-ranked alternatives to Labelbox on NeuronFeed are MOSTLY AI, Tonic.ai, Scale AI, Kili Technology, Invisible Technologies. Rankings are based on our Neuron score, which weighs funding, momentum and editorial signal.
Is there a free alternative to Labelbox?
Yes — Kili Technology, Synthesized, AfterQuery offer a free plans. See the pricing column for each alternative above.
How is this list ranked?
We rank alternatives by shared categories with Labelbox, then by our proprietary Neuron score (0–100) which combines funding, team quality, momentum, and editorial input. The list refreshes every 30 days.
Labelbox vs MOSTLY AI — which is better?
It depends on use case. MOSTLY AI (Unlock the power of data with a platform for secure access, high-quality synthetic data generation, and seamless data analysis.) is the #1-ranked alternative. See the full side-by-side at /compare/labelbox-vs-mostly-ai.
Explore more around Labelbox
Contextual paths to related AI startups, deals and rankings.