Anthropic has launched Claude Opus 4.1, an incremental update to its flagship AI model, offering slight performance boosts in coding and reasoning tasks.
Anthropic, a leading AI startup, today announced the release of Claude Opus 4.1, a new flagship model that delivers minor improvements over the Opus 4 model. Anthropic claims that Opus 4.1 performs better than Opus 4 on agentic tasks, real-world coding, and reasoning.
Anthropic mentioned in its announcement blog post that Opus 4.1 posted a state-of-the-art coding performance of 74.5% on SWE-bench Verified. On Agentic terminal coding, it scored 43.3%, up from Opus 4’s 39.2%. On AIME 2025, this updated model scored 78%, up from Opus 4’s 75.
