Lifecycle, licence, release, pricing and hosting changes to LangSmith in the AI Agent Infrastructure Landscape. https://mrpeppersdev.github.io/agent-infrastructure-landscape/feeds/langsmith--langchain-com.xml 2026-10-23T00:00:00Z AI Agent Infrastructure Landscape https://mrpeppersdev.github.io/agent-infrastructure-landscape/systems/langsmith--langchain-com#2026-10-23-5fd0959f49 2026-10-23T00:00:00Z

Funding / ownership: “LangChain total ~$35M+ ($3M seed Benchmark 2023; $25M Series A Sequoia Feb 2024; $125M Oct 2025 unicorn round at $1…” → “LangChain total ~$160M ($10M seed Benchmark 2023; $25M Series A Sequoia Feb 2024 at $200M post-money; $125M Oct 2025 round at $1.25B valuation)”. Source change: https://github.com/MrPeppersDev/agent-infrastructure-landscape/pull/223

https://mrpeppersdev.github.io/agent-infrastructure-landscape/systems/langsmith--langchain-com#2026-10-22-89dcc719ed 2026-10-22T00:00:00Z

Latest release: “not applicable — not OSS” → “SDK v0.14.11 (2026-10-16) — platform itself proprietary”. Source change: https://github.com/MrPeppersDev/agent-infrastructure-landscape/pull/195