Timeline
- 7.5
Opus 5.5 for Work - Anthropic
Anthropic announced Opus 5.5 for Work, a release of its Claude Opus model line aimed at workplace and enterprise use cases. The model is listed by OpenRouter as Claude Opus 5.5, succeeding Claude Opus 5. The release pushes Anthropic's flagship Opus tier further into workplace and enterprise deployment, the segment where the company already sells Team and Enterprise plans. OpenRouter describes Claude Opus 5.5 as Anthropic's flagship model for demanding reasoning, coding and long-horizon agentic work, with particular strength in multi-step changes across large codebases, code review and bug finding, and financial and scientific analysis.
- 8.0
Claude computes a nine-loop amplitude in N=4 super-Yang-Mills - Anthropic
Anthropic published a guest post on its research site reporting that its physicists Liam Fitzpatrick and Siddharth Mishra-Sharma used the Claude model to compute the six-particle scattering amplitude in planar N=4 super Yang-Mills theory at nine loops. The report says the result answers a public challenge issued to AI companies on August 7, 2026. The report frames the calculation as a response to a public challenge posed to AI companies, positioning frontier theoretical-physics computation as a test of AI reasoning capability. The result concerns the six-particle scattering amplitude in planar N=4 super Yang-Mills at nine loops. The guest post's author notes that in 2023 he and Andy Liu used a form factor and a symmetry they call antipodal duality to obtain the amplitude at eight loops, and that getting to nine loops had been a goal since then.
- 8.0
Claude discovers a novel enzyme system with CRISPR-like repeats - Anthropic
Anthropic said its Claude model identified a novel enzyme system whose defining feature is a long array of repeats reminiscent of CRISPR, located beside a reverse transcriptase in a jumbo phage genome. Anthropic describes it as the first result from its biology research efforts and says it does not yet know what the system does. Anthropic presents the result as evidence that AI agents can contribute to biological discovery rather than only assist with analysis. Researchers quoted in coverage said the RNA-repeat arrays associated with reverse transcriptases are genuinely intriguing and merit further investigation. According to coverage, the system sits in bacteriophage DNA beside a long array of repeats, and the underlying reverse transcriptase had been identified in earlier studies — Claude appears to be the first to notice the repeat arrays that define the system. The function remains unknown, and the underlying enzyme family is described as retron-like.