LangChain Deep Agents vs OpenAI Agents SDK (2026)
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If you're building AI agents in Python right now, two frameworks are competing for your attention: LangChain Deep Agents (launched March 15, 2026) and the OpenAI Agents SDK (early March 2026). Both promise production-ready multi-agent orchestration. Both have real traction -- Deep Agents hit 9.9k GitHub stars in 5 hours, while the Agents SDK formalized patterns thousands of teams were already hacking together with OpenAI's experimental Swarm library. But they solve the problem from fundamentally different directions.