Anthropic Opus 5
AssessPlatforms
A large language model from Anthropic updated for coding and general AI tasks.
Why it's here
Placed in Assess: 3 article(s) of evidence from 3 source(s), led by model releases, with 3 in the last 30 days. Confidence 48%.
Evidence (3)
- 8Ars Technica AI·7/29/2026securityHAWK post-quantum signature scheme withdrawn after flaw found
HAWK, a post-quantum digital signature scheme under review for possible US standardization, has been withdrawn after a flaw was identified. The issue was found with help from Anthropic's security model during the third NIST evaluation round, which is designed to expose exactly these kinds of weaknesses.
- 6Hacker News·7/27/2026researchBenchmarking Opus 5 on SlopCodeBench
This post reports benchmark results for Opus 5 on SlopCodeBench, a coding-focused evaluation. It discusses how the model performs on agentic programming tasks and what the benchmark reveals about coding quality and failure modes.
- 6Ars Technica AI·7/24/2026model_releaseAnthropic launches Opus 5 with efficiency-focused improvements
Anthropic has released Opus 5, the latest update to its model family that is popular for coding and software development tasks. The report says the upgrade appears more focused on token efficiency than on a major jump in agentic coding capability.