Anthropic Ships Sonnet 5 With Agentic Safety and Pricing Details
1 July 20265 min read
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Anthropic released Claude Sonnet 4.5, describing it as a major step for coding, complex agents, computer use, reasoning and math.
The launch also tied the model to upgrades in Claude Code, including a VS Code extension, terminal updates and checkpoints for longer autonomous development tasks.
For the AI industry, Sonnet 4.5 strengthened the shift from chat performance toward durable software work and agent execution.
Why It Matters
Coding agents are becoming one of the clearest commercial battlegrounds for frontier model providers.
What to Watch
Watch real-world failure modes, enterprise controls and whether longer autonomous coding tasks reduce or increase review burden.
Primary Sources
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Topics
AnthropicClaude SonnetCoding AgentsAI Models