Changelog

🎨 Generative chart controls​

Previously, even small edits to your charts in generative apps required new prompts to the agent. Now, you can build custom, code-generated apps with the Hex Agent, and then use the Style panel to make point-and-click chart polishes.

Some edits you can now make this way:

• Update the chart title, style and height
• Restyle series and change the colors
• Rename axes
• Control legend titles, visibility, and placement

This makes small edits faster, and saves your valuable tokens for bigger changes that require deeper thinking.

Try this out on an app you’ve already built or start building a new one with just a single prompt.

🔐 Shareable results for OAuth connections​

Orgs with OAuth connections can collaborate, and share results, without needing to share credentials.

Importantly, this unlocks threads sharing, better performance through shared query caching, and more flexible collaboration.

To take advantage of this behavior, Admins should set Authoring queries to Require personal credentials and set Sharing results to Shared across users.

Existing connections keep results private to each user to prevent unintended data exposure. When results are private, agent threads remain isolated to the user who generated them. This setting applies per data connection, not per project.

⌨️ Semantic projects via CLI​

Pull your semantic spec out of Hex and into your repo, for local development and source control. This makes it easier to audit context or track what's changed.

Read and export semantic projects from the command line with the 'hex context semantic-project' command group

• 'list' — see all semantic projects in the workspace
• 'get' — get a project, with '--include-fields' for dimensions, measures, and joins
• 'model get' and 'view get' — pull a single model or view
• 'pull' — write the source files of a project's latest version to a local directory

To bring semantic projects into your development workflow, start by installing the Hex CLI.

🤖 Quickly toggle from chat to notebook​

Previously, you needed to wait a minute for Hex to convert your Thread to a notebook, now it happens automatically.

After starting a conversation with the Hex Agent, you can easily switch views and build in the underlying notebook. And if you're in the notebook view but just want to focus on the conversation, swap views so the code stays out of the way.

The conversation persists no matter what view you're toggling between.

Worried about your conversations cluttering your project list? Not to worry — projects created from agent conversations are unlisted to start, so nothing shows up in your project list until you decide to promote it or save it as a published app.

💬 The Hex Agent reads the whole Slack thread​

Tag @Hex mid-conversation and the Hex Agent now picks up the discussion that came before it.

Previously, the agent only saw the message that mentioned it, so "can you dig into this?" or "can you check these numbers" meant you had to restate the question. Now the Hex Agent pulls in the original message and replies, along with who said what.

That means threaded follow-ups actually get answered instead of met with "which metric do you mean?", and handoffs from a team discussion to the agent don't require restating what was already said.

Learn more about the Hex Agent in Slack.

⚡ Fast mode​

Need an answer now? Flip on fast mode in the model picker to push Opus models to 2.5x faster token output, at increased usage.

The boost is most dramatic on long blocks of pure token output: big explanations, large blocks of code, or heavy reasoning. Questions that require a lot of querying and tool calls will still feel faster, just less dramatically, since a chunk of that time is calls and execution rather than token generation.

🧠 GPT-5.6 Sol, Terra, and Luna​

OpenAI's GPT-5.6 family is now in the model picker:

• Sol for complex, multi-step analytical work
• Terra for balanced everyday use
• Luna for fast, low-cost lookups

Select one when you're prompting the agent, or keep Auto on, which automatically selects the model best suited for the task.

✅ Default new Threads to Endorsed mode​

New threads from the Hex UI or Slack can now open in Endorsed Mode by default, so Editors land in endorsed projects and data without anyone having to remember to flip a switch. Admins can toggle off this enforcement in Settings > AI & agents.

🏷️ See which model Auto picked​

When the agent runs on Auto, Context Studio now shows which model it picked, shown as Auto (Opus 4.7), making it easy to see what Auto chose when reviewing usage and cost.

🧪 Introducing Evals​

Measure Hex Agent performance and test context changes safely before they ship, all from the CLI.

If you've added a guide or tweaked a semantic model, Evals helps you measure whether it actually helped — before you publish. To do that, define a suite of test questions with expected outcomes and run them against the Hex Agent.

Evals turn agent quality and cost into something that you can measure and improve, so you're not just going on vibes.

Some ways teams are using it:

• Test context changes before publishing by forking context and running Evals to validate agent improvements.
• Catch drift before your users do by running the same Evals against production on a cadence.
• Run configuration sweeps to compare cost and pass rate side by side.

Learn more about Evals or dive into the docs for the full rubric reference.

Getting started: Install the Hex CLI and follow the bootstrap prompt for Claude Code, Cursor, or your coding agent of choice — it scans your recent Threads, clusters them into your team's most common question topics, and drafts a starter suite from real usage instead of a blank file.