Blacksmith

This page may contain stale information. Last updated: 2026-08-15

Overview

Blacksmith is a San Francisco CI cloud startup (founded 2024) providing purpose-built infrastructure for GitHub Actions workloads and AI-era code validation. Competes with hyperscaler CI and embedded agent validation in Codex/Claude Code.

Recent Developments

• 2026-08-12: $45MSeriesBat$550M valuation — Peak XV lead; YC, GV participate (round closed March 2026) (2026-08-12-blacksmith-45m-series-b)
• 6,000+ customers (up from ~800 at Series A); CI jobs +5–10% WoW since start of 2026
• Launched codesmith cloud coding agent inside validation loop — diagnoses/autofixes CI failures
• codesmith QA planned: autonomous pre-merge testing; 10x compute scale-up targeted

Related

• ci-cd
• coding-agents
• ai-code-review-bottleneck
• coderabbit
• rwx
• peak-xv

Sources

• 2026-08-12-blacksmith-45m-series-b
• 2026-08-12-blacksmith-primary-series-b-blog
• 2026-08-12-blacksmith-techcrunch-series-b