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Claude Opus 5 5

Coverage tagged 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.

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Sep 22, 2026, 2:47 PM EDT · AI Security · Claude Opus 5 515 minClaude 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, 2026, 5:28 AM EDT · Research · Qwen 46 minAlibaba Confirms Qwen 4 in Training as Apsara Roadmap Targets 10T Parameters

Alibaba confirmed Qwen 4 is in training at Apsara 2026, with Qwen 4.5 and Qwen 5 targeting 5-10T parameters and the Zhenwu V900 chip due Q1 2027.

Sep 22, 2026, 5:27 AM EDT · AI Security · Xai Grok 4 78 minGrok 4.7 Matches Claude Fable 5.1 Max — on SpaceXAI's Own Scorecard

SpaceXAI's launch table shows Grok 4.7 edging Claude Fable 5.1 Max on DeepSWE at a fraction of the price. On an independent harness, the gap is 29 points.

Sep 22, 2026, 4:57 AM EDT · Research · Mimo V2 67 minXiaomi's MiMo-V2.6 Breaks the CyberGym Ceiling and Ships MIT Weights the Same Day

Xiaomi's MiMo-V2.6 clears CyberGym at 94.0 under an MIT licence, but ExploitBench at 47.9 shows the audit-to-exploit gap is still wide open.