Jakarta, INTI – Amid the intense competition in the field of artificial intelligence (AI), the ability of AI models to write code, operate autonomously, and maintain security has become a primary focus. Anticipating these needs, the U.S.-based AI research company Anthropic officially introduced its latest model, Claude Sonnet 4.5, now available to all users. The launch took place on Friday, October 3, 2025, immediately attracting global attention as the model is claimed to outperform ChatGPT-5 in coding, security, and the ability to work nonstop for up to 30 hours. With this innovation, Anthropic aims to reinforce its position in the AI competition while providing smarter solutions for developers, businesses, and researchers.
Enhanced Coding and Autonomous Capability
Claude Sonnet 4.5 brings significant improvements in code writing and business research. The model can produce cleaner code, accurately detect programming errors, and follow complex instructions consistently. One of its greatest advantages is endurance: Claude Sonnet 4.5 can operate autonomously for up to 30 hours nonstop, far exceeding its predecessor, Claude Opus 4, which could only last 7 hours. This allows the AI model to handle long and complex tasks without needing frequent “breaks.”
Stricter Security Focus
Beyond performance, Anthropic emphasizes security as a top priority. Claude Sonnet 4.5 is designed to be more resistant to prompt injection and malicious instruction manipulation, reducing the risk of misuse for fraud or other harmful actions. Jared Kaplan, Co-founder and Chief Science Officer of Anthropic, stated, “This is the biggest leap in safety we have seen in the past one to one and a half years.”
Smaller but Smarter
Mike Krieger, Chief Product Officer of Anthropic, added that although Claude Sonnet 4.5 is smaller in size compared to Claude Opus 4.1, its intelligence has improved in nearly all areas. The model will become the recommended default for most use cases, while paid users can still choose the older model if their workflows are not ready to fully switch.
Competitive Strategy and Rapid Innovation
The launch of Claude Sonnet 4.5 demonstrates Anthropic’s seriousness in competing with OpenAI, which recently released GPT-5. The company also signaled plans to release one or two more models before the end of 2025, highlighting the fast pace of innovation in the AI world.
Conclusion
With superior coding abilities, enhanced security, and endurance to work up to 30 hours, Claude Sonnet 4.5 proves that AI innovation continues to advance rapidly and opens new opportunities for technological development. This launch reinforces Anthropic’s position as a leading player in the global AI industry.
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