Sonnet Code
Service · Core

Work with senior AI Training engineers.

The expert humans behind frontier models — SFT, RLHF, red-teaming, and evaluations run like a training program, not a labeling queue.

We're the team AI labs call when the next capability jump depends on the quality of the humans in the loop. Senior domain specialists — engineers, mathematicians, clinicians, lawyers, linguists — produce SFT demonstrations, preference data, adversarial probes, and custom evaluations that move a model from capable to state of the art. Calibrated raters, versioned rubrics, traceable provenance, and the operational discipline of a managed program.

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AI Training in production
Why Sonnet Code for AI Training

The bar we hold ourselves to.

Experts, not a crowd

Every rater on your run has the credentials and the track record to defend their judgement. Sourced against the task brief, not drawn from a generic pool.

Program-grade ops

Versioned rubrics, calibration rounds, inter-rater agreement tracking, reviewer-level provenance on every judgement. You get the data and the audit trail.

Senior labelers own the rubric

The person defining 'good' on your run is a specialist, not an ops manager. Edge cases get adjudicated by someone who has actually worked the domain.

Scale without collapse

We scale expert pools without falling into the quality trough that breaks most annotation programs. Gold sets, audits, and live dashboards keep the distribution honest.

What we build with AI Training

AI Training work, shipped.

SFT demonstration data

Expert-authored prompts, ideal responses, and step-by-step reasoning traces — tuned to the rubric your training run actually needs, not a generic style guide.

RLHF & preference data

Pairwise rankings, critiques, rewrites, and reward-model training sets from calibrated reviewers. Full provenance on every judgement, every rubric version.

Red-teaming & safety

Adversarial prompts, jailbreak probes, harm-category coverage, and policy-compliance audits run by people who know the real failure modes in your domain.

Custom evaluations

Gold-standard eval sets and benchmark pipelines for the domains public leaderboards don't cover. Automated scoring where it holds up, expert scoring where it doesn't.

Data generation pipelines

Synthetic-plus-expert pipelines that hit training scale without collapsing into slop. Specialist-authored gold sets anchor the distribution; automated generators do the volume.

Dedicated expert pools

STEM, code, legal, medical, multilingual — sourced, vetted, and onboarded to your task in days. Contract or continuous, exclusive or shared, under your spec and your NDAs.

Stack

Inside our AI Training practice.

RLHFDPOSFTRed-teamingModel evaluationRubric designInter-rater agreementLangChainWeights & BiasesLabel StudioArgillapgvector

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