Claude Sonnet 4.5 and the Agent SDK: 30-hour focus, same price
Sonnet 4.5 takes the SWE-bench Verified lead and holds multi-step tasks for 30+ hours at $3/$15, while the new Agent SDK exposes Claude Code's own infrastructure — subagents, checkpoints, memory — to anyone building agents. Anthropic sells the picks and the mine.
0 sources