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Anthropic’s Claude Code tool utilizes a clever trick to extend its coding capabilities. By simply using the phrase “ultrathink,” users can trigger a significantly increased thinking budget within the Claude model, allowing for more thorough evaluation of coding solutions. The article reveals that “ultrathink” is a specific feature within Claude Code, mapped to a 31999 token budget, alongside other phrases like “think,” “think harder,” and “megathink,” each allocating progressively more computational time for the agent to process.