An AI coding assistant that explains its fixes

• —Write a function, script, query or component from a plain description.
• —Explain an error message or stack trace and suggest a fix.
• —Review code for bugs, edge cases, security issues and readability.
• —Refactor code, add types or translate it to another language.
• —Look up the current documentation for a library before answering.

• —Sel-Altair: everyday coding. Fast, and built for writing, reviewing and debugging code.
• —Sel-Sirius: the hardest problems, such as system design, tricky bugs and careful code review.
• —Sel-Vega: quick questions about syntax or a command, unlimited on paid plans.

You can switch models in the middle of a conversation and keep everything you have shared so far.

• —“Why does this React effect run twice, and how do I fix it?”
• —“Write a SQL query that finds customers who ordered twice within 30 days.”
• —“Review this function and list anything that could break in production.”