SWE-bench

Claude Opus 4.7: Anthropic's New Flagship Clears SWE-Bench Pro

Anthropic's Opus 4.7 hits 64.3% on SWE-bench Pro, adds an xhigh effort level, and ships with 3x sharper vision. But the new tokenizer quietly shifts your bill, and Mythos still sits in the drawer.

By Sarah Chen · 6 min · Apr 19, 2026