Anthropic announced Thursday the release of its latest AI model, Claude Opus 4.7, which the company is calling a “notable improvement” over Opus 4.6 but “less broadly capable” than the to-dangerous-to-be-released Opus Mythos Preview.
Claude Opus 4.7 is something of a doubling down on what Anthropic’s models are already good at. Per the company, the latest iteration of its flagship option comes with jumps in performance on coding, engineering, and multi-step tasks. The company claims it is “more thorough and consistent on difficult work, with better results across professional knowledge work.”
As with every new model release, this one comes with a fresh set of benchmarking tests to prove its prowess. Claude Opus 4.7 has retaken the top spot for agentic coding among publicly available models, scoring 64.3% on SWE-bench Pro and SWE-bench Verified—two of the main tests of a model’s capabilities of handling complex engineering tasks. Claude Opus 4.7 also improved on 4.6’s standard for agentic computer use (i.e., autonomously navigating across an operating system to complete tasks), and graduate-level reasoning, among other categories.
Interestingly, Claude Opus 4.7 represents a slight backsliding compared to Claude Opus 4.6 in cybersecurity vulnerability reproduction. The new model scored 73.1% in benchmarking tests, compared to the previous iteration scoring 73.8%. Per Anthropic, the new model introduces “safeguards that automatically detect and block requests that indicate prohibited or high-risk cybersecurity uses,” so perhaps that has slightly dampened the performance.
It’s hard to ignore the fact that the release of Claude Opus 4.7 reads as a promotion for Claude Mythos Preview, the company’s model that is so powerful that it’s currently only inviting specific organizations to use it. The benchmarking test shows Mythos blowing away every other major model in just about every single test that it participated in. Anthropic can’t help but compare everything to it, even at the expense of talking up its latest release.
“We stated that we would keep Claude Mythos Preview’s release limited and test new cyber safeguards on less capable models first. Opus 4.7 is the first such model: its cyber capabilities are not as advanced as those of Mythos Preview,” the company wrote in the blog post for today’s model update. At another point, the company describes Opus 4.7 as “less broadly capable than our most powerful model, Claude Mythos Preview.”
Per Anthropic, Claude Opus 4.7 will be available starting today across all Claude products and through the company’s API, with no change in price compared to previous models. So check it out if you want to use the watered-down version of the product that Anthropic really wants you to be thinking about.
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