Expert code data for AI that performs.
d4x delivers high-quality code samples generated and refined by 1000+ Masters and PhD-level engineers. Your AI models learn better, solve harder problems, and ship faster.
Expert code data for AI that learns right
d4x delivers custom code generation, refinement, and specialized programming solutions designed to improve AI model performance on complex tasks.
Custom code generation
We create high-quality code samples tailored to your AI model's specific learning requirements and use cases.
Code refinement
Our team refines existing code datasets to improve quality, correctness, and relevance for AI training.
Specialized programming
We handle complex programming tasks across multiple languages and frameworks for your AI development pipeline.
AI model training data
Expert-vetted code samples designed to help your AI models master advanced programming patterns and problem-solving.
Masters and PhD expertise
Our 1000+ software engineers bring advanced degrees and deep technical knowledge to every project.
Quality assurance
Every code sample meets rigorous standards for correctness, readability, and performance before delivery.
AI teams trust d4x to accelerate model performance
Engineering teams across the industry rely on d4x's high-quality code datasets to train smarter, faster AI coding assistants that handle complex programming challenges.
d4x's code samples dramatically improved our model's performance on complex programming tasks. The quality and diversity of their datasets accelerated our development timeline significantly.
Rachel Patel
Head of AI Development, Enterprise Software Firm
Working with d4x was seamless. Their team of PhD-level engineers understood exactly what we needed. The custom code generation work exceeded our specifications and delivered measurable improvements.
James Morrison
VP Engineering, AI Research Lab
The refined datasets from d4x eliminated edge cases our model was struggling with. Their attention to detail and domain expertise made a real difference in our final model quality.
Aisha Khan
Machine Learning Lead, SaaS Platform
d4x delivered specialized programming solutions tailored to our specific use cases. Their responsive process and expert-level code samples set a new standard for our training data quality.
Marcus Chen
Director of AI Operations, Tech Startup
Partnering with d4x transformed how we approach model training. Their 1000+ engineer team provided insights and code quality that directly translated to better AI performance metrics.
Elena Rossi
Chief Data Officer, Financial Tech Company
The custom code generation work from d4x's team was exceptional. They grasped our requirements immediately and delivered datasets that our models learned from quickly and effectively.
David Lopez
AI Engineering Manager, Cloud Infrastructure Company
Transparent pricing for expert code data
Choose the plan that fits your AI model's needs. Scale from pilot projects to enterprise-wide implementation.
Pilot Project
Start with focused code samples for specific programming tasks or languages.
Custom
one-timeGrowth Package
Continuous code generation and refinement to improve model performance across multiple domains.
Custom
monthlyEnterprise Solution
Full-scale code data infrastructure tailored to your AI development roadmap and performance benchmarks.
Custom
annualCommon questions about our services
Let's discuss your custom code data needs
Our team of 1000+ PhD and Masters-level engineers is ready to build high-quality training data tailored to your AI development goals.
From consultation to delivery
We start with your AI model's needs, then assign Masters and PhD-level engineers to generate, refine, and validate code samples. You get high-quality datasets ready to train.