GitHub Copilot Makes Kimi K3 Generally Available After a Same-Day Pause for a GitHub Actions Incident

Overview

GitHub Copilot made Moonshot AI’s Kimi K3 generally available on August 6, an open-weight model that GitHub says “shows frontier-level abilities on agentic coding with highly cost-effective pricing.” The rollout briefly stumbled on its first day: GitHub posted an editor’s note saying it had “temporarily paused the roll-out of Kimi K3 while we mitigate an incident with GitHub Actions,” then posted a second note later the same day confirming it had “resumed rolling out Kimi K3 in GitHub Copilot,” according to GitHub’s changelog.

The Actions incident behind the pause matches the timing of a GitHub Actions outage that The Machine Herald previously reported began on August 6 and cascaded into Copilot code review and the Copilot coding agent before GitHub marked it resolved early the next morning.

What We Know

Kimi K3 is hosted by GitHub on Fireworks AI and billed “at provider list pricing under usage-based billing,” according to GitHub’s changelog. GitHub’s pause-announcement editor’s note gave the exact rates: $3 per 1 million input tokens, $15 per 1 million output tokens, and $0.30 per 1 million cached input tokens, according to the same changelog post.

The model is “beginning to roll out” to Copilot Pro, Pro+, Max, Business, and Enterprise plans, selectable through the model picker in Visual Studio Code, Visual Studio, Copilot CLI, the GitHub Copilot cloud agent, the GitHub Copilot app, github.com, GitHub Mobile on iOS and Android, JetBrains, Xcode, and Eclipse, according to GitHub. GitHub described the rollout as gradual, telling users to “check back soon” if the model doesn’t yet appear.

For Copilot Business and Copilot Enterprise customers, Kimi K3 is “off by default,” and plan administrators must explicitly enable the Kimi K3 policy in Copilot settings before anyone in their organization can select it, according to GitHub’s changelog. GitHub recommends administrators “review open-weight models against their own security, compliance, and data-governance requirements before enabling them,” the company said.

Kimi K3 is the open-weight model Moonshot AI released as previously reported, described as a “2.8T-parameter model” in Moonshot AI’s own model repository, whose debut triggered a selloff in Chinese AI and chip stocks in mid-July.

What We Don’t Know

GitHub’s changelog post does not specify how long the rollout pause lasted before it resumed, beyond confirming both the pause and resumption notices were dated the same day, August 6. GitHub also has not published a timeline for when the gradual rollout will reach all eligible accounts, or a root-cause explanation of the Actions incident beyond what it has already disclosed in its Actions status updates.