{"slug":"ruff","name":"Ruff","domain":"astral.sh","verdict":"As of 2026-08-23, ChatGPT, Claude, Gemini, Grok collectively rank Ruff #7 of 8 for code formatter. Source: https://modelsagree.com/product/ruff (modelsagree.com, CC BY 4.0).","best_rank":7,"categories":1,"entries":[{"slug":"best-code-formatter","title":"Best code formatter","rank":7,"of":8,"score":1,"appearances":1,"modelRanks":{"Claude":5},"reason":"For Python-heavy multi-language repos, the fastest and now-standard Python formatter+linter in one Rust binary, Black-compatible output with far greater speed and an integrated lint autofix path.","reasons":[{"model":"Claude","reason":"For Python-heavy multi-language repos, the fastest and now-standard Python formatter+linter in one Rust binary, Black-compatible output with far greater speed and an integrated lint autofix path."}],"fixes":[{"model":"Claude","fix":"Python-only — it solves one language superbly but must be paired with another tool for a multi-language codebase, so it earns a spot only as the Python component."}],"updated":"2026-08-23","rank_history":{"days":["2026-08-22","2026-08-23"],"ranks":[7,null]},"api":"https://modelsagree.com/api/v1/best/best-code-formatter.json"}],"page":"https://modelsagree.com/product/ruff","check":"https://modelsagree.com/check?q=Ruff","updated":"2026-09-09T13:07:58.066Z","attribution":"modelsagree.com, CC BY 4.0"}