Labelbox vs Modal

Labelbox — Infrastructure · Private · $189M raised · 2 of 2 figures sourced  |  Modal — Infrastructure · Private · $466M raised · 1 of 1 figure sourced

Relationship

Terra and Modal Notebooks do comparable work on model training; both also serve buyers who need to train or fine-tune a model; same layer and the same scale band (growth-stage private).

Assembled from the recorded fields for this pair, not hand-checked. The comparison below is read from each company’s own profile.

3 of 8 capabilitiesShared product typeSame scale band

3 of 8 capabilities — Shares model inference, model training and workflow automation.

Ludbee capability tags · from the product records

Shared product type — Both ship developer tool.

Ludbee product records

Same scale band — Both growth-stage private.

Ludbee scale bands · from valuation and funding figures

Aligned comparison

FieldLabelboxModal
Capital raised$189M$466M Modal has 2.5× more
Employees——
Founded2018—
StatusPrivatePrivate match
CategoryInfrastructureInfrastructure match
Stack layerAgent platform, Application, Data service, Developer tool, PlatformDeveloper tool, Infrastructure service
HeadquartersSan Francisco, USANew York, USA

Capability overlap

Shared · 3

Model inferenceModel trainingWorkflow automation

Not verified for Modal · 5

Agent orchestrationData analysisData labellingEvaluation and observabilityVector search

Recorded for Labelbox. Modal’s product records say nothing either way — a missing record is not a missing capability.

Not verified for Labelbox · 2

GPU cloudModel hosting

Recorded for Modal. Labelbox’s product records say nothing either way — a missing record is not a missing capability.

Products, side by side

Algorithmic pairing — assembled from recorded fields, not hand-checked

Labelbox

Developer tool

Labelbox FoundryDeveloper tool

Foundry runs third-party foundation models over data already in Labelbox to pre-label and enrich image, text and document datasets without code, routing the predictions to human review; billed as inference cost per model run plus Labelbox Units.

Modal

Developer tool

Modal NotebooksDeveloper tool

Hosted notebooks backed by Modal's GPUs, for profiling and experimenting without provisioning a machine.

No counterpart

Labelbox sells these in a stack layer with no product recorded for Modal yet — nothing on the other side to compare them against.

Application

AnnotateApplication

Annotate is the data labeling product within Labelbox, providing 10+ built-in editors for multimodal chat, LLM evaluation, prompt/response generation, computer vision and NLP, plus customizable labeling and review workflows and team performance monitoring.

CatalogApplication

Catalog is Labelbox's data curation and search product providing out-of-the-box search across images, text, video, conversations and documents over metadata, vector embeddings and annotations without building your own vector database infrastructure.

Agent platform

RecursionAgent platform

Labelbox's reinforcement-learning platform for developing, evaluating and deploying enterprise specialist agents, connecting RL environments, evaluation systems and a training loop that fine-tunes models from graded rollout trajectories.

Platform

HorizonPlatform

Horizon supplies RL training gyms and evaluations for reasoning, tool use and computer use, using WorldSim to simulate enterprise environments such as GitLab, Jira, CRM, email and chat and to produce calibrated reward and preference signals for post-training.

Data service

AlignerrData service

Alignerr is Labelbox's expert-network product that routes AI training and evaluation tasks to credentialed contributors across 200+ knowledge domains and 40+ countries and returns structured outputs for RL training, RLHF and evaluation workflows.

TerraData service

Terra is Labelbox's robotics data product delivering video, trajectories and multimodal annotations across pre-training, post-training and evaluation stages, including expert teleoperation with action labels and multiple camera perspectives for embodied foundation models.

Modal sells these in a stack layer with no product recorded for Labelbox yet — nothing on the other side to compare them against.

Infrastructure service

ModalInfrastructure service

Serverless GPU compute: a Python decorator puts a function on an accelerator, scales it from zero to thousands of containers and stops billing when it stops running — aimed at inference, fine-tuning and batch jobs rather than reserved clusters.

Modal BatchInfrastructure service

Batch execution of large jobs across Modal's fleet, described as one line of code on the product page.

Modal InferenceInfrastructure service

Serve, scale and optimise model inference on Modal's runtime, with sub-second cold starts and autoscaling across regions.

Modal SandboxesInfrastructure service

Isolated, instantly-started containers for running untrusted or agent-generated code at scale — the primitive behind AI app-generation products.

Modal TrainingInfrastructure service

Managed training runs on Modal's fleet, configured in Python alongside the rest of a team's code.