Here's a summary of all user-facing changes on Superconductor from the week of Apr 19-25:
Major changes
GPT-5.5 support
GPT-5.5 is now available as a Codex agent in Superconductor, with Medium, High, and Xhigh reasoning options. We also published a new GPT-5.5 benchmarking analysis comparing it against Claude Opus 4.7, Sonnet 4.6, Gemini 3.1 Pro, Amp, and the latest OpenCode-routed models; in our benchmark, GPT-5.5 High is the new quality-per-dollar leader.
Other changes
Default agents for Slack and GitHub integrations
You can now choose a default agent profile in Account Settings for requests that come from Slack or GitHub without an explicit model:... option. If that agent is not configured for the target project, Superconductor automatically falls back to the best available agent.
New tickets pre-select the best available agent
When you create a new ticket, Superconductor will now pre-select one implementation of the best available configured agent instead of starting empty. This lets you launch new tickets more quickly.
Updated OpenCode models
OpenCode profiles have been refreshed with Opus 4.7, GLM 5.1, Kimi K2.6, MiniMax M2.7, and Qwen3.6 Plus. Older OpenCode models remain available on existing implementations but are no longer shown when you launch a new ticket.
Stacked tickets automatically retarget
When a base branch is merged into its upstream branch, Superconductor now updates tickets that were stacked on top of that branch to target the upstream branch instead. Existing implementations also receive a Superconductor message explaining the base branch change.
Best-available agent fallbacks throughout the app
Guided Review, Email Triage, Meeting Assistant, and Environment Setup now use the best available coding agent for the project instead of being blocked by a hardcoded Claude credential requirement.
Fixed issues
Large file diffs load more reliably
The diff viewer no longer tries to load full file content for files over 1,000 lines, improving reliability for large changes.
PR descriptions include multi-repo diffs
Generated PR descriptions now include formatted diffs for each repo in a multi-repo implementation, so reviewers get the full context.
Have feedback or ideas for things you'd like to see on Superconductor? Let us know!