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Anthropic's new Claude 4 AI models can reason over many steps | TechCrunch

May 22, 2025 - techcrunch.com
Anthropic has introduced two new AI models, Claude Opus 4 and Claude Sonnet 4, as part of its Claude 4 family, claiming they excel in programming tasks and complex actions. Opus 4, the more advanced model, is available only to paying users, while Sonnet 4 is accessible to both paying and free users. The models are priced at $15/$75 per million tokens for Opus 4 and $3/$15 for Sonnet 4 via Anthropic’s API on Amazon’s Bedrock and Google’s Vertex AI platforms. These models are designed to analyze large datasets, execute long-horizon tasks, and improve coding and math capabilities, with Sonnet 4 serving as a drop-in replacement for Sonnet 3.7. Anthropic has implemented stricter safeguards for Opus 4 due to its potential to enhance capabilities in sensitive areas like chemical and nuclear weapons.

Anthropic aims to significantly grow its revenue, targeting $12 billion by 2027, up from a projected $2.2 billion this year. The company has secured substantial funding, including a $2.5 billion credit facility, to support its development of frontier models. Despite facing competition from OpenAI and Google, Anthropic is committed to frequent model updates and enhancements, including improvements to its Claude Code tool, which now integrates with IDEs and offers an SDK for developers. The Claude Code SDK allows for AI-powered coding assistants and tools, with extensions available for platforms like Microsoft’s VS Code, JetBrains, and GitHub. Anthropic acknowledges the challenges AI models face in coding quality software but emphasizes their potential to boost productivity.

Key takeaways:

  • Anthropic launched two new AI models, Claude Opus 4 and Claude Sonnet 4, which are designed for analyzing large data sets, executing long-horizon tasks, and performing well on programming tasks.
  • Opus 4 is available only to paying users, while Sonnet 4 is accessible to both paying and free users, with pricing for Anthropic’s API set at $15/$75 per million tokens for Opus 4 and $3/$15 per million tokens for Sonnet 4.
  • The Claude 4 models are equipped with enhanced safeguards and cybersecurity defenses, and they can switch between reasoning and tool use to improve answer quality, while also building "tacit knowledge" over time.
  • Anthropic is enhancing its Claude Code tool, integrating it with IDEs and offering an SDK for developers to build AI-powered coding assistants, with plans for more frequent model updates to continuously improve capabilities.
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