Weights & Biases raises $100M Series C to keep building MLOps software

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What do you call AI these days? ML in the suit.

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ML, or Machine Learning, is a huge market today. It is thanks to modern corporations that functions such as data gathering and data science are maturing as a category. Evidence of the first can be found in the growth posted by Databricks in recent quarters, and later in how much cash Big Tech companies are willing to spare on ML-focused roles.

market that load and bias is active these days. It’s no huge surprise that the startup just raised $100 million in a supersized Series C. The company is now worth about $1 billion, it said in a release. Felicis, Insight Partners, Bond and Cotu contributed to the deal.


According for carta data, the data and analytics-focused Series C round since the beginning of 2020 has an average value of $43.75 million, and a median resulting valuation (post-money) of approximately $416 million. This effectively doubles this round, which is what we can expect the company to raise given the historical data.

In terms of product, weights and bias play in the “MLOPS” space, or machine learning operations market. MLOps, despite being a new category, is inherently similar to DevOps.

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image credit: Weight and bias. the product in question.

According to Weight & Prejudice Co-Founder lucas biwald, is a set of tools created for developers in the software world to write and deploy code well. This may include a Git-style service (gitlabhandjob GitHub, etc.), monitoring (atlassianhandjob datadog, etc.), and so on.

His company’s goal, he explained, is to build a similar stack of services for the ML world. And today, he explained, many ML teams are working with ad-hoc tooling or without software support.

The need for such a stack can be infrequent. One difference between the development and ML worlds, according to Biwald, is that when code fails, ML work can “behave badly” in more subtle ways.

Enter weights and biases, naturally. The startup’s product life began with experiment tracking, which Bywald compared to code versioning in the DevOps stack. Git, he explained, while great for human-written versioning code, is somewhat poor at handling different versions of computer-generated code, such as those that come from machine learning work. This is the point on which weight and bias want to be taken.

This effort is certainly catching the attention of investors. Felicis investor Aydin Sencutt told Nerdshala that he had been eyeing weights and biases for a while, but other investors took the lead in its last two rounds. This time round, Sencutt came to the cap table by pre-empting the company. Per Biwald, Waits and Byes would have raised a similar round, albeit later, if Felicis had not led the charge.

Nerdshala dug into the startup’s pricing plan before chatting with the company. Its price list seemed affordable in comparison to the productivity that appeared to be intended to deliver weight and bias as it builds out its service. Note that this is not a compliment per se; Lower prices are a way of transferring value from the company and investors to customers in the near term.

Biwald said Vets & Buys is pricing its service so that it’s easy for anyone to access. Sencutt said that amid customer scrutiny performed by Felicis during its due diligence for the investment, customers said the startup was downsizing its service by a factor of three.

The investor said he was excited by the prospect as other companies such as Shopify pursued similar long-term lures on near-term earnings.

To be honest, I’m curious as to what the weights and biases want to create. Let’s see how far the nine-digit probe that came early can take the company. Next time we talk, it’ll be time to come home more precisely on growth metrics and examine the margin effects of its free service (unless, of course, it’s adding that particular item to its sales and marketing spend line). does not contain the item).

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