OpenAI
September 16, 2026
Startup
Hex turns complex analysis into visual reports with GPT‑6 Astra
GPT‑6 Astra helps Hex’s data agents turn answers into interactive visualizations that employees are proud to share.
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Company size: Startup
Region: North America
Industry: Technology
Products: API
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“A really important part of data work is not just doing the analysis, but also communicating it,” says Caitlin Colgrove, co-founder and CTO of Hex, an agentic data platform. But according to Caitlin, “Models have struggled with data visualization for a really long time.” GPT‑6 Astra changes that.
“With GPT‑6 Astra, you are able to build much more complex, interactive, compelling, and beautiful data artifacts that not only communicate your analysis clearly, but that you are actually proud to share with the rest of the organization.”
—Caitlin Colgrove, Co-founder and CTO, Hex
Producing a useful data visualization requires both technical work and choices about how to present the result. Caitlin remarks on how well GPT‑6 Astra works with the underlying libraries and performs the data transformations required, helping analysts create functional, visually appealing outputs.
“Astra is able to go into the underlying libraries, do all of the crazy transformations that geospatial visualizations require, and build out something that’s not just functional but aesthetically pleasing inside of the data artifact as well.”
—Caitlin Colgrove, Co-founder and CTO, Hex
For example, a Hex user can ask how sales channels are performing over time, which are doing best, and which should be discontinued. Hex presents written findings alongside trend lines and comparisons, as well as interactive dashboards that let users explore key measures, rankings, and geographic breakdowns.
Even technically correct code can produce an answer that misses the point, so Hex uses GPT‑6 Astra to interrogate the answer: Does the number make sense? Does the analysis answer the user’s question? Does it reflect the business objective?
Caitlin says GPT‑6 Astra investigates more thoroughly, uncovers more of the data’s pitfalls and nuances, and delivers a more comprehensive analysis than earlier models.
“GPT‑6 Astra is much better at exercising what we call analytical judgment, which is not just getting to an answer, but understanding whether or not that answer is actually what the user is asking for and what the business needs.”
—Caitlin Colgrove, Co-founder and CTO, Hex
A clear visualization gives colleagues a way to engage with the analysis: comparing results, following changes over time, and exploring the details that relate to their work.
With GPT‑6 Astra, Hex users can access, understand, and communicate data more easily, bringing Hex closer to its mission of making everyone a data person.
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