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Anthropic has launched Opus 4.5, its latest model in the 4.5 series, marking the end of this development cycle. The model excels in coding benchmarks, achieving over 80% on SWE-Bench, and introduces enhanced spreadsheet capabilities through Chrome and Excel integrations. Memory optimizations for long-context tasks allow smoother handling of complex workflows, while new features like ‘endless chat’ improve user experience. The release aligns with agentic use cases, enabling Opus to coordinate with sub-agents effectively. Anthropic highlights its competitive edge against models like GPT 5.1 and Gemini 3.
Key facts
- Opus 4.5 is the final release in Anthropic’s 4.5 series, following Sonnet 4.5 and Haiku 4.5.
- The model scores above 80% on SWE-Bench, a rigorous coding benchmark, setting a new standard.
- Chrome and Excel integrations expand Opus’s utility for real-time data analysis and document interaction.
- Memory improvements enable efficient long-context processing without interrupting workflows.
- Opus 4.5 faces competition from OpenAI’s GPT 5.1 and Google’s Gemini 3, both released recently.
TAGS:
#AI benchmarks #AI Competition #AI Models #Anthropic #Chrome integration #Claude #Excel integration
