Anthropic Ships Sonnet 5 With Agentic Safety and Pricing Details
1 July 20265 min read
AI
Anthropic Releases Claude Sonnet 4.6 With Stronger Agent and Computer-Use Skills
Anthropic says Sonnet 4.6 improves coding, long-context reasoning, agent planning and resistance to prompt injection while adding a 1M-token context window in beta.
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Anthropic released Claude Sonnet 4.6 on 17 February, positioning it as the company’s most capable Sonnet model to date.
The company says the model improves coding, computer use, long-context reasoning, agent planning, knowledge work and design. It also offers a 1M-token context window in beta.
Anthropic emphasised prompt-injection resistance for computer-use workflows, where hidden instructions on websites can attempt to redirect an AI system away from the user’s intent.
Sourcing note: Capability claims and customer examples are from Anthropic. They should be treated as company-reported performance until independently benchmarked in comparable environments.
Why It Matters
Sonnet-class models are often where cost, latency and capability meet in production. Improvements to computer use and prompt-injection resistance are important because agent deployments fail not only on intelligence, but on whether the model can safely follow the right instructions in messy software environments.
Primary Sources
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Topics
AnthropicClaude Sonnet 4.6Computer UsePrompt InjectionAgentic AI