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Anthropic Launches Claude Sonnet 5 AI Model

Anthropic Launches Claude Sonnet 5 AI Model

First seen 30 Oct 2026, 19:45 UTC • •

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ThreatCluster AI
ThreatCluster •October 31, 2026 at 09:42 UTC
  • •Claude Sonnet 5 launched on October 26, 2026, enhancing agentic AI capabilities.
  • •The model is priced competitively and available across all user plans.
  • •Sonnet 5 shows improved safety metrics compared to its predecessor but is less effective in cybersecurity tasks.

On October 26, 2026, Anthropic released Claude Sonnet 5, its latest AI model designed for agentic tasks. This model improves upon its predecessor, Sonnet 4.6, with enhanced capabilities in reasoning, tool use, and coding. Despite its advancements, Sonnet 5 reportedly has a lower ability to perform cybersecurity tasks compared to the Opus models. The model is available across various plans at competitive pricing. The release comes amid a competitive landscape with other AI models from companies like OpenAI and Google. Anthropic's safety assessments indicate Sonnet 5 has a lower rate of undesirable behaviors than Sonnet 4.6, making it safer for agentic contexts. However, specific details regarding vulnerabilities or exploits related to this model were not disclosed in the articles.

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Timeline

2026-10-26
Claude Sonnet 5 released
Anthropic introduced Claude Sonnet 5, enhancing agentic performance and tool use capabilities.
Anthropic

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Common questions

What improvements does Sonnet 5 offer?
Sonnet 5 features enhanced reasoning, tool use, and coding capabilities compared to Sonnet 4.6.
Is Sonnet 5 safe for use?
Yes, safety assessments indicate it has a lower rate of undesirable behaviors than its predecessor.
What are the pricing details for Sonnet 5?
Sonnet 5 is priced at $2 per million input tokens and $10 per million output tokens.