Scale AI + Weights & Biases: ML Development Stack
Scale AI handles data labeling and curation while Weights & Biases tracks experiments and models. The complete ML development cycle: label data (Scale) → train and track (W&B) → evaluate (Scale) → iterate.
Tools in This Stack
Setup Guide
- 1Scale AI account
Custom pricing based on data volume and labeling complexity.
- 2W&B account
Free for personal use. Team at $50/user/mo.
- 3Integration code
Add wandb SDK to training pipeline — 3 lines of code.
- 4Evaluation pipeline
Set up automated evaluation runs triggered by model checkpoint saves.
Integration Steps
- 1Label data with Scale
Send raw data to Scale AI for human-in-the-loop labeling with quality checks.
- 2Train with W&B tracking
Use wandb.init() in training scripts to log metrics, hyperparameters, and artifacts.
- 3Evaluate with Scale
Use Scale's evaluation platform to benchmark model performance on labeled test sets.
- 4Iterate based on insights
W&B experiment comparison reveals which changes improved metrics. Scale relabels edge cases.
Cost Analysis
| Item | Cost |
|---|---|
| Total | $1,250-5,250/mo for 5-person ML team |
| Scale AI | Custom (typically $1-5K/mo) |
| W&B Team | $50/user/mo |
Ehsan's Recommendation
ML teams waste 80% of their time on data issues, not model architecture. This stack attacks both: Scale ensures data quality, W&B ensures experiment reproducibility. Together they cut the "we cannot reproduce last week's results" problem that plagues every ML team I have worked with.
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Ehsan Jahandarpour
AI Growth Strategist & Fractional CMO
Forbes Top 20 Growth Hacker · TEDx Speaker · 716 Academic Citations · Ex-Microsoft · CMO at FirstWave (ASX:FCT) · Forbes Communications Council