12 alternatives to Surge AI in Data Labeling, Annotation & Synthetic Data. 4 of them are tracked direct competitors.
| Company | Pricing | Open source | Funding |
|---|---|---|---|
| Surge AIthis pageData-labeling platform focused on high-quality human feedback (RLHF). | Paid | No | Unknown |
| Appendirect competitorLong-standing global data-annotation and AI training-data company. | Enterprise | No | Public |
| Samadirect competitorData-annotation company also known for AI ethics/RLHF work. | Enterprise | No | Series C |
| Scale AIdirect competitorLeading data-labeling and evaluation platform for training AI models. | Enterprise | No | Series D+ |
| Tolokadirect competitorCrowdsourced data-labeling and RLHF platform. | Paid | No | Unknown |
| ArgillaOpen-source data-annotation tool for NLP/LLM training data (part of Hugging Face). | Freemium | — | Seed |
| DatasaurData-labeling platform focused on NLP and LLM training data. | Paid | No | Seed |
| EncordData annotation and management platform for computer vision/multimodal AI. | Paid | No | Series B |
| Gretel AIPlatform for generating synthetic data for AI training and testing. | Freemium | Yes | Series B |
| HumanSignal (Label Studio)Company behind the open-source Label Studio annotation tool. | Freemium | Yes | — |
| LabelboxData-labeling and training-data platform for AI teams. | Freemium | No | Series D+ |
| Mostly AISynthetic data generation platform for privacy-safe AI training. | Freemium | No | Series A |
| Snorkel AIPlatform for programmatically labeling and generating training data. | Enterprise | No | Series C |
Direct competitors are curated relationships in the index. The remaining entries share the Data Labeling, Annotation & Synthetic Data category.