Shipping Faster With AI: A Practical GPT-5 vs Sonnet-4 Showdown

Futuristic banner illustration comparing GPT-5 and Sonnet-4 with a glowing brain, code snippet, and lightning bolt divider.

Picking an AI coding partner in 2025? GPT-5 often wins fast bug-fixing and tool-heavy workflows, while Claude’s Sonnet-4 earns praise for steady, requirement-faithful edits in big repos. Benchmarks like SWE-bench show both at the top; developer reports vary. The real answer: pilot on your code and choose what ships green tests most reliably.