Anthropic launches Claude Opus 4.7 as researchers reveal fake Claude installer spreading malware

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"It brings substantially better vision with higher-resolution image support, more taste and creativity on professional tasks like interfaces, slides, and docs, and stronger instruction-following.

The company, however, also clearly stated that Claude Opus 4.7 is not cyber-focused, and cannot be compared to its recently launched Mythos Preview model.

"Mythos Preview remains Anthropic's most powerful model, and its release continues to be limited to cyber defenders and critical infrastructure partners while cyber safeguards are tested on less capable models first," Anthropic said.

Opus 4.7's pricing model remains the same as the previous version: US$5/M input tokens, US$25/M output tokens.

Mario Rodriguez, Chief Product Officer at GitHub, praised the new model's resolution.

"On our 93-task coding benchmark, Claude Opus 4.7 lifted resolution by 13 per cent over Opus 4.6, including four tasks neither Opus 4.6 nor Sonnet 4.6 could solve," Rodriguez said in a statement supplied by Anthropic.

"Combined with faster median latency and strict instruction-following, it's particularly meaningful for complex, long-running coding workflows. It cuts the friction from those multi-step tasks so developers can stay in the flow and focus on building."

When is Claude not actually Claude?

While it is launch day for Opus 4.7, security researchers have also uncovered a ClickFix malware campaign that uses a fake Claude installer as a lure.

"Recently, Rapid7 observed a small grouping of ClickFix events across customers in the EU and US. At the time of discovery, this campaign had very little traction on sites like VirusTotal or within the online security landscape," Rapid7 said in an April 16 blog post.

"This campaign was particularly interesting as it appeared to be masquerading as an installer for Claude, an AI tool that has received a considerable amount of attention."

ClickFix is a popular form of social engineering that tricks users into executing a PowerShell command, which, once run, downloads a malicious payload.

In this instance, several PowerShell commands are executed one after the other, before ultimately downloading the payload.