AI代码构建与测试平台Blacksmith完成6600万美元C轮融资，Sequoia领投，公司正式跻身独角兽行列。
Blacksmith provides tooling for validating, debugging, and integrating AI-generated code—addressing a critical bottleneck as models advance faster than engineering workflows can keep up. The $66M round, led by Sequoia and valuing the company at $1B, signals strong investor confidence in infrastructure that accelerates production-grade AI application delivery—not just model training. For early-stage AI teams, this underscores a strategic opportunity: tools that reduce time-to-production for AI features (e.g., automated test generation, safety guardrail integration, or agent behavior replay) are gaining traction over pure inference-layer plays. Founders should prioritize measurable engineering velocity gains—not just accuracy metrics—when designing dev tooling for AI teams.