Louis-François Bouchard 🎥🤖(@Whats_AI):5.5 is IN-SANE. It almost broke our benchmark. I thought it was a bug. Claude Opus 5.5 is the new #1 on our writing benchmark, and it is not close at all. 2631 Elo. Second one, Fable, is at 2324. That is a 307 point gap, the largest single jump we have recorded since we started running this in June 2026. It is also the first model to clear 91 out of 100 on our rubrics. One thing to note: at max effort it takes 17 minutes and $3.43 to write one script. It is the slowest configuration on the entire board. By FAR. Not the most expensive one, but in the top 5 most expensive. More details on the effort and thinking levels of Opus 5.5 👇

2026.09.23 15:48

5.5 is IN-SANE. It almost broke our benchmark. I thought it was a bug. Claude Opus 5.5 is the new #1# on our writing benchmark, and it is not close at all. 2631 Elo. Second one, Fable, is at 2324. That is a 307 point gap, the largest single jump we have recorded since we started running this in June 2026. It is also the first model to clear 91 out of 100 on our rubrics. One thing to note: at max effort it takes 17 minutes and $3.43 to write one script. It is the slowest configuration on the entire board. By FAR. Not the most expensive one, but in the top 5 most expensive. More details on the effort and thinking levels of Opus 5.5 👇