Comet ML vs Labelbox

Comet ML — Infrastructure · Private · $70M raised · 3 of 3 figures sourced  |  Labelbox — Infrastructure · Private · $189M raised · 2 of 2 figures sourced

Relationship

Comet Artifacts and Terra do comparable work on model training; both also serve buyers who need to train or fine-tune a model; similar scale (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 4 capabilitiesShared product type

3 of 4 capabilities — Shares data analysis, evaluation and observability and model training.

Ludbee capability tags · from the product records

Shared product type — Both ship application, developer tool and platform.

Ludbee product records

Aligned comparison

FieldComet MLLabelbox
Capital raised$70M$189M Labelbox has 2.7× more
Employees80—
Founded20172018 1 yrs later
StatusPrivatePrivate match
CategoryInfrastructureInfrastructure match
Stack layerApplication, Developer tool, PlatformAgent platform, Application, Data service, Developer tool, Platform
HeadquartersNew York, USASan Francisco, USA

Capability overlap

Shared · 3

Data analysisEvaluation and observabilityModel training

Not verified for Labelbox · 1

Agentic coding

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

Not verified for Comet ML · 5

Agent orchestrationData labellingModel inferenceVector searchWorkflow automation

Recorded for Labelbox. Comet ML’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

Comet ML

Application

Cost IntelligenceApplication

Opik feature that tracks and attributes AI/coding-agent token spend (Claude Code, Codex) across engineering teams, surfacing recoverable-spend opportunities.

Developer tool

Agent OptimizerDeveloper tool

Opik feature (also available as an open-source SDK) that automatically iterates and tunes system prompts across seven optimization algorithms before freezing them for production.

Comet ArtifactsDeveloper tool

Comet's dataset- and model-versioning product for tracking artifacts and lineage from training through production.

Comet Experiment TrackingDeveloper tool

Comet's experiment-tracking product for logging, comparing, visualizing and reproducing machine-learning training runs.

Platform

Comet Model Production MonitoringPlatform

Comet's production-monitoring product for tracking deployed-model performance and data drift across the ML lifecycle.

OpikPlatform

GenAI observability and agent-testing platform from Comet, for tracing, evaluating and debugging LLM applications.

Labelbox

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.

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.

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.

No counterpart

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

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.

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.