Topic

Claude Opus 5 5

Coverage tagged claude opus 5 5.

Articles: 2
Desks: 2

Data graphic: Claude Opus 5.5 fast mode is out of preview at $8 / $40 per MTok in / out, 2x the standard $4 / $20, with output speed up to 2.5x Anthropic's figure . Standard keeps the Batch API and Priority Tier; fast mode has neither.

Claude Opus 5.5 fast mode is out of preview: $8/$40 per MTok, twice the standard price

Anthropic made Opus 5.5 fast mode generally available on 15 October. It costs 2x standard for up to 2.5x output speed, but skips Batch and Priority Tier.

Oct 18 · 5 min

Data poster: Claude Opus 5.5, Anthropic's strongest cyber model yet, against Mythos 5.1 on ExploitGym 300 vs 264 exploits at six hours , control-flow hijacks 106 vs 81 and CyScenarioBench 67.6% vs 61.7% , with 73.4% full code execution on ExploitBench. A cyber classifier sends blocked requests to Opus 4.8.

elevatedAI Security Claude Opus 5 5

Claude Opus 5.5 Is Anthropic's Strongest Cyber Model Yet, So Most Security Work Goes to Opus 4.8

Opus 5.5 out-exploits Mythos 5.1 in Anthropic's own cyber tests and costs 40% less to run than Opus 5. Blocked security requests fall back to Opus 4.8.

Sep 22 · 15 min