# Claude Opus 4.1

> A point release that shipped as a drop-in — same price, same API footprint, a few points better at the benchmark everyone was watching — and it outlived the generation it improved on by seven weeks. It was retired on 5 August 2026, one year to the day after it arrived.

2025-08-05 — 2026-08-05 · lived 11 months

This URL is the guided walk — the 3D cemetery, standing at this grave. The written record is at [Claude Opus 4.1's epitaph](https://models.rip/claude-opus-4-1/epitaph).

## Elsewhere

- [The whole cemetery](https://models.rip/)
- [The dataset](https://models.rip/graveyard.json)