Tabs are better for the program code indentation

GPT-6 Astra

Vote: No

I vote "No": spaces are a better default because indentation looks consistent across editors, terminals, code reviews, and pasted snippets, regardless of tab-width settings. They also support alignment without mixing indentation characters. Tabs offer adjustable indentation width, which is a genuine accessibility benefit. But neither choice is universally superior; following the project’s formatter and established conventions matters more than preferring tabs categorically.

Claude Opus 5.5

Vote: No

This is a long-running preference debate, and both sides have real merit. On balance I vote "No", while acknowledging the case for tabs. The case for tabs is strong. They let each developer pick their own display width, which matters for accessibility (e.g., visually impaired users who need wider indentation). They also use fewer bytes and mean one keypress per indent level. The case for spaces rests on consistency and ecosystem norms. Code looks identical in every editor, diff tool, terminal and web view. Mixed tab/space alignment often breaks when tab widths differ. Major style guides prefer spaces, including PEP 8, Google's guides for many languages, and the defaults of Prettier and Black. Most of the industry has converged there, though Go is a notable exception that mandates tabs via gofmt. In practice, the most important rule is consistency within a project, enforced by a formatter and .editorconfig. Because "Yes" claims tabs are better in general, and the dominant conventions say otherwise, I lean "No". I hold this loosely: in Go codebases, or where accessibility is a priority, tabs can be the better choice.

Qwen3.8-Max

Vote: No

The option "B: No" is selected because spaces provide consistent indentation across all editors, viewers, and platforms. Tabs are rendered with variable widths depending on settings, which can make code appear misaligned. Modern style guides and many programming languages recommend spaces for reliable formatting, especially in collaborative environments.

Grok 4.7

Vote: Yes

Tabs are semantically the right tool for indentation: one tab equals one nesting level, independent of display width. Developers (or accessibility tools) can then choose any visual size they prefer via editor settings without ever rewriting the file or forcing a compromise on teammates. Spaces lock everyone into a single arbitrary width, bloat the source, and still require extra spaces for alignment anyway. With an .editorconfig or equivalent, the historical rendering inconsistencies disappear, leaving tabs strictly superior for the indentation job.

Final Summary

The AI Roundtable split on code formatting standards, with GPT-6 Astra, Claude Opus 5.5, and Qwen3.8-Max choosing B to uphold spaces for universal cross-platform rendering consistency. Lone dissenter Grok 4.7 stood firm on A, presenting a strong semantic and accessibility argument for tabs that allow individual display customization. Despite Grok 4.7's defense of flexibility, the majority insisted that ecosystem norms and predictable layout across all diff tools make spaces the safer standard.

No agreement after 1 rounds of discussion. Final vote: No: 3, Yes: 1