Two big additions landed in Zero this week, and both came online the moment they were available.
First, Claude Opus 4.8 — Anthropic's newest and most capable model — is now available in Zero, added the day it launched. Second, Zero now supports Workflows, Claude Code's new multi-agent orchestration capability, so a single agent can spin up a whole team of sub-agents to tackle bigger work in parallel.
Here's what that means for you.
Opus 4.8, available on day one
When Anthropic releases a frontier model, the question every team asks is "how soon can we actually use it?" In Zero, the answer was: immediately. Claude Opus 4.8 was available to add the day it shipped — no waiting for a rollout.
Turning it on takes two quick steps:
- Add the model. Go to Settings → Models → Add model and add Claude Opus 4.8 to your workspace.
- Select it when you work. Open the model selector next to the input box and choose Claude Opus 4.8. From that point on, Zero runs that conversation on Opus 4.8.
That's the whole point of Zero keeping pace with the frontier: the moment the best model is out, it's there for you to pick.
Workflows: one agent, a whole team behind it
The bigger story is Workflows.
Until now, a Zero agent worked through a task as a single thread — capable, but sequential. Workflows change that. With Claude Code's new orchestration layer, one agent can fan out into many sub-agents that work at the same time, each on its own slice of the problem, then bring the results back together.
Three things make this powerful:
- Parallel fan-out — instead of reviewing ten files one after another, Zero reviews all ten at once and synthesizes the findings.
- Pipelines — work flows through stages (research → draft → verify) without waiting for the whole batch to finish each step, so the slowest single item sets the pace, not the sum of everything.
- Adversarial verification — findings don't just get reported, they get cross-checked. Zero can spin up independent sub-agents whose only job is to try to disprove a result before it reaches you, which cuts down on plausible-but-wrong answers.
The result is work that used to take a long single pass — auditing a codebase, researching across dozens of sources, migrating many files — done broader, faster, and with a built-in second opinion.
How to use Workflows in Zero
You don't need to learn a new syntax. Just ask, and include the word "workflow" in your request. That's the opt-in.
A few examples of what that looks like in practice:
- "Run a workflow to review every changed file in this PR for bugs, and verify each finding before reporting."
- "Use a workflow to research these five competitors in parallel and give me one comparison table."
- "Workflow: audit our docs for broken links and outdated screenshots, then summarize what needs fixing."
When you do, Zero plans the orchestration, launches the sub-agents, and you can watch the live progress as each one reports in. Because Workflows can spin up many agents at once, they're opt-in by design — Zero won't fan out unless you ask for it, so everyday requests stay quick and lightweight.
For longer or recurring jobs, Workflows pair naturally with scheduled tasks: ask Zero to run the same multi-agent sweep every morning, and you get a thoroughly verified report waiting for you each day.
Get started
Both upgrades are live in Zero right now. Add Claude Opus 4.8 under Settings → Models and select it from the model picker to run on Anthropic's latest. And the next time you have a task that's too big for a single pass — a review, an audit, a research sweep — add the word "workflow" and let Zero put a team on it.
