Starting today, you can use Anthropic's latest SoTA model, Claude Opus 4.6, in CometAPI's API and Claude Code (you can also use CometAPI's key to access Claude).
Claude Opus 4.6 is Anthropic’s newest “Opus”-class large language model, released February 2026. It is positioned as a workhorse for knowledge-work and research workflows — improving long-context reasoning, multi-step planning, tool use (including agentic software workflows), and computer-use tasks such as automated slide and spreadsheet generation. The release emphasizes enterprise readiness (security and safety testing), a beta 1-million token context window for very long documents, and higher “thinking budgets” via expanded output length.
Key advantages of Claude Opus 4.6
- Much larger working memory (beta 1-million-token context): enables coherent work across many documents or very long files without frequent context juggling.