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New model · Bug fix

Claude Opus 5.5 is now available in Buildful

By Syed Fazle Rahman

On this page

Pick Claude Opus 5.5 in Buildful's model picker on Pro or Team, and it opens a tested pull request on your GitHub repo.

As of October 5, tasks on Claude Opus 5.5 and Claude Fable 5.1 run in Buildful. Claude Sonnet 5.5 is in the picker as well.

How it's paid

Claude Opus 5.5 is a model you pick yourself, so it isn't part of the tasks in your plan. Pay for it from prepaid credit, which you top up from $5, or add your own Anthropic API key and it's billed to your Anthropic account. See pricing for how credit works.

Linear automations

Your Linear agent can now run on the model you choose. Open Integrations, pick a model under Coding agent, and the issues you label in Linear run on it, Claude Opus 5.5 included. Automations with no model saved keep using Smart Mode. Slack already had this setting.

Read how it works end to end in Run Claude Code on your Linear issues.

  • Models
  • Integrations

About the author

Syed Fazle Rahman

Co-founder, Bug0 · Building Buildful

At Bug0, Fazle builds AI agents that test web apps end to end. He previously co-founded Hashnode and helped grow it into one of the web's largest developer communities. A front-end and UX engineer by training, he wrote Jump Start Bootstrap and Jump Start Foundation for SitePoint and has spent more than a decade building products for developers.

Try it on your own repo

Describe a change. Buildful builds it, tests UI changes in a real browser, and opens a pull request. Your first 3 tasks are free, then 1,000 tasks for $10 a month. See pricing.

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