Weights & Biases
The AI developer platform.
293 employees · est. 2017 · San Francisco, United States
Weights & Biases is the older company (2021 vs 2017); Weights & Biases is the larger of the two.
Side-by-Side Comparison
| Metric | EXPAI | Weights & Biases |
|---|---|---|
| Founded | ||
| Founded | 2021 | 2017 older |
| Headquarters | ||
| Headquarters | Barcelona, Spain | San Francisco, United States |
| Employees | ||
| Employees | 1 | 293 larger |
| Industry | ||
| Industry | AI, Machine Learning | AI, Data Analytics, Developer Tools |
| Funding Stage | ||
| Funding Stage | Not tracked yet | Acquired |
| Total Funding | ||
| Total Funding | Not tracked yet | $1.95B |
| Funding Rounds | ||
| Funding Rounds | Not tracked yet | 7 |
| Services | ||
| Services | Not tracked yet | Not tracked yet |
| Target Customers | ||
| Target Customers | Not tracked yet | Not tracked yet |
| Taxonomy | ||
| Taxonomy | Algorithm Justice, Data-driven, Model Interpretability, AI Transparency, Bias Mitigation, Trust-building, Visual Tool, Interpretable AI | MLOps, LLMOps, GenAI Applications, Model Performance Visualization, Experiment Tracking, AI Governance, Model Monitoring, Inference, Model Comparison, Data Quality, AI Observability, Prompt Engineering, Hyperparameter Tuning, Reproducibility, Dataset Versioning |
| Website | ||
| Website | expai.io | wandb.ai |
About EXPAI
EXPAI is a startup based in Spain, founded in 2020, with a mission to enhance user trust and improve AI efficiency. The company aims to demystify complex AI models by providing innovative tools that enable companies to comprehend and improve the decisions made by these algorithms. EXPAI's platform o...
About Weights & Biases
Weights & Biases, founded in 2017, is a leader in the rapidly evolving AI and Data Analytics sectors. Positioned as "The AI developer platform," the company offers a comprehensive suite of tools designed to expedite AI model development, including fine-tuning LLMs and building GenAI applications wit...
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Funding, hiring, leadership and stack changes at EXPAI and Weights & Biases — by email.
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Compiled from the BounceWatch company index. We last looked at EXPAI on 11 Sep 2024, and Weights & Biases on 1 Jul 2026. Where a field is blank here, it means we have not recorded it — not that the answer is zero. How we source and date this.
