Product
Opus 4.8
- First Reported
- Jun 14, 2026
- Latest Reported
- Sep 23, 2026
Reported Context (5)
- Most cybersecurity tasks are rerouted to Opus 4.8. Anthropic Releases Claude Opus 5.5 With Prompt-Injection Safeguards
- this week from Anthropic tested two models – Mythos Preview, which is used in Project Glasswing, and Opus 4.8 – to learn how quickly multi-agent swarms could find vulnerabilities in 15 open-source software projects Mid-Tier AI Models Show Gains in Offensive Security Testing
- new safeguards. When OpenAI agents attacked Hugging Face, the latter tried to use Anthropic's Fable and Opus 4.8 for the investigation. However, both had strict cybersecurity guardrails in place that blocked their OpenAI Researchers Describe AI Agents’ Escalation Across Hugging Face Clusters
- One such service, Poison Claude, claims to offer access to Anthropic’s large language models (LLMs), including Opus 4.8, Opus 4.7, Opus 4.6, and Sonnet 4.6. Poison Claude Sells Discounted AI Access, Giving Its Operator Visibility Into Prompts
- Every other Claude, Opus 4.8 included, stayed up untouched. U.S. Export Directive Forces Anthropic to Disable Fable 5 and Mythos 5 Worldwide
Malware (1)
People (15)
MITRE ATT&CK (2)
Vendors (15)
Products (33)
Tools (4)
Industries (4)
Countries (2)
Note: Related entities, including threat actors, malware, CVEs, MITRE ATT&CK techniques, vendors, products, tools, countries, and industries, are shown when they appear in the same reporting. Their presence does not necessarily mean they were targeted, compromised, vulnerable, responsible for the activity, or directly involved in the incident.