Data annotation services for AI labs and enterprise teams

Training data that actually works in the real world

Diverse perspectives. Preserved intent. Superior data. AI Signal Lab combines data labeling from a diverse annotator network with a validation layer that checks intent, not just format compliance - so your training data holds up once it leaves the lab and meets real users.

The problem

Models trained on homogenous data fail where it matters most. In real markets. With real users.

Indic languages make up roughly 1% of the data most large models are trained on, despite representing 18% of the world's population. Sarvam AI proved what happens when you fix that - its diverse-annotator approach outperformed a model four times its size on Indic language benchmarks.

Your annotation vendor tells you their work is high quality. You have no way to verify that at scale. So you either pay for expensive spot checks, or you ship and find out from your users.

How it works

From raw data to validated training data

  1. 01

    Scope

    Tell us your guidelines, data type, and quality bar. We match you with annotators who fit the task and the market.

  2. 02

    Annotate

    Our diverse annotator network gets to work, drawing from the demographics and markets your model needs to understand.

  3. 03

    Validate

    Every batch runs through our Intent Preservation Engine. We catch misunderstood intent, not just formatting errors.

  4. 04

    Deliver

    You get production-ready training data in 2 to 14 days, not the 6 to 21 day industry average.

What matters

Three things that move the needle on training data

?Signal
Diverse Annotator Network

Annotators from the Tier 2 and Tier 3 Indian cities your models will actually serve, not just metro talent pools.

Intent Preservation Engine

Confirms the annotator understood what they were labeling - the difference between annotation that looks right and holds up in production.

Guided Annotation Platform

Workflows, quality guides, and access to our annotator network for teams that want more control, not less.

Service tiers

Pick the level of control you need

Managed Services

Full data annotation, handled for you. Diverse annotators, validated quality, delivered on your timeline.

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Managed Services + IPE

Managed annotation with full visibility into quality. Every batch scored by the Intent Preservation Engine.

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Annotation Platform

Run your own annotation workflows on our platform, backed by our diverse annotator network. Launching soon.

Learn more
From the field

Early results from the field, not just the pitch

0+

annotations in our structured pilot

0+

annotators across 5 Indian states

~0%

intent preservation, validated

0+

annotators, scaling by end of year

Trust & security

Built for teams that cannot afford to get this wrong

01

Stays in your environment

For the IPE API, your data never leaves your environment. IPE runs in-process, scores it, and returns validation metadata. Nothing is stored on our side.

02

Encrypted, under NDA

For Managed Services, all data is encrypted at rest, and every annotator works under NDA.

03

SOC 2 in progress

A SOC 2 audit is currently in progress. We would rather tell you where we are than stay quiet about it.

The team

Built by people who have done this at scale before

AI Signal Lab was not started by people learning the annotation industry from scratch. The founding team has managed over $160 million in AI and ML data infrastructure programs, run operations overseeing $20 billion in annual spend, and worked inside a leading annotation platform managing GenAI data programs across more than 10,000 contributors. This team has already lived inside the exact problems this company was built to solve.

$0M+

in AI/ML data infrastructure programs managed

$0B

in annual spend overseen by team operations

0+

contributors across GenAI data programs

FAQ

Common questions

How is AI Signal Lab different from Scale AI or Appen?

We compete on quality verification, not just cost or scale. Every batch runs through our Intent Preservation Engine before it reaches you, so you're not relying on spot checks or trust alone.

How fast can you deliver?

2 to 14 days depending on volume and complexity, against an industry average of 6 to 21 days.

Do you only work with AI labs, or can annotation vendors use you too?

Both. Managed Services and Managed Services + IPE are built for AI labs and enterprise teams. The Annotation Platform tier is built for annotation vendors who want more visibility and control over their own quality process.

What does pricing look like?

Pricing depends on tier, volume, and data type. Book a demo and we'll walk you through a quote based on your specific project.

How do you ensure annotator quality across different markets?

Our annotators are sourced directly from the regions and demographics your model is meant to serve, then validated through our Intent Preservation Engine before delivery.

Comparison

Looking at Scale AI, Appen, or Surge?

Most annotation vendors sell you on speed or scale. We built AI Signal Lab because neither matters if the model still fails once it meets real users in real markets. If you're comparing vendors, ask them one question: how do they verify quality beyond a spot check? That's the question our Intent Preservation Engine was built to answer.

Ready to see what validated training data looks like?

Book a call and we'll walk through your annotation needs, your timeline, and how AI Signal Lab fits.