Powering teams building real-world AI
Robotics LabVision AIAutonomous Co.Speech FoundryEdge Systems
How it worksTwo paths, one platform. Buyers dispatch data tasks; contributors complete them on their phones.
For data buyers
01
Define a taskWrite instructions, pick a data type (video now; audio, images, and depth soon), set a reward per approved clip, and choose how many you need.
02
Fund itPay securely via Stripe. Your budget is held in escrow and only released when you approve submissions. You're never billed for rejected clips.
03
Receive verified dataReview submissions in your dashboard or poll the API. Approve a clip and the contributor is paid instantly. Download signed URLs or stream via the API.
For contributors
01
Pick a taskBrowse tasks in the feed that match your device. Tasks show the reward, instructions, and an example clip so you know exactly what's expected.
02
Record on your phoneCapture directly in the browser — no app install needed. Record, preview, and retake until it's right, then submit with one tap.
03
Get paid fastEarnings land in your connected Stripe account within 48 hours of approval. Track every submission and payment in your earnings dashboard.
Every modality your model needsStart with video today. Audio, images, and depth follow — same task API, same contributor network.
Live
VideoAny scene, from any angle. 1080p, vertical or landscape. Ideal for vision models, robotics, and spatial AI.
Coming soon
AudioNatural speech, ambient sound, and structured prompts in any language. Perfect for ASR and TTS training.
Coming soon
ImagesSingle frames, burst sequences, and annotated stills. High-res, diverse, and verified.
Coming soon
Depth / LiDARPoint clouds and disparity maps from LiDAR-capable iPhones. Unlock 3D spatial understanding.
Developer API
Dispatch tasks programmaticallyOne API call to post a task. Another to stream back approved submissions with signed download URLs. Designed for pipelines, not people.API-key auth with per-key scopes
Idempotency keys on all writes
HMAC-signed webhook deliveries
Structured JSON errors + OpenAPI spec
curl https://groundtruth.io/api/v1/tasks \
-H "Authorization: Bearer gt_sk_••••••••" \
-H "Content-Type: application/json" \
-d '{
"title": "Record a busy street scene",
"modalities": ["video"],
"reward_cents": 250,
"target_submissions": 100,
"instructions": "Walk down any public street..."
}'Built for trust, on both sides
Verified submissionsEvery clip passes server-side format, size, and duration checks before entering the review queue. Buyers only pay for approved work.
Fast, fair payContributors are paid via Stripe Connect within 48 hours of approval. No waiting, no surprises. Payout history is fully transparent.
Privacy-firstData is stored under signed, expiring URLs. Your bucket is never public. Contributors consent explicitly before every task.