{"schema_version":"onlylabs.public_signal.v1","title":"OpenAI Writing: Scaling Kubernetes to 7,500 nodes","description":"OpenAI writing signal with public source context, captured evidence pages, related signals, and data-business radar classification.","url":"https://onlylabs.fyi/signals/1312c4ff-2f08-43e7-b4f2-d21b32a54afd","json_url":"https://onlylabs.fyi/signals/1312c4ff-2f08-43e7-b4f2-d21b32a54afd/signal.json","generated_at":"2026-06-08T15:46:53.15+00:00","org":{"slug":"openai","name":"OpenAI","category":"frontier-lab","category_label":"Frontier lab","dossier_url":"https://onlylabs.fyi/labs/openai","dossier_json_url":"https://onlylabs.fyi/labs/openai/dossier.json"},"related_urls":{"signal":"https://onlylabs.fyi/signals/1312c4ff-2f08-43e7-b4f2-d21b32a54afd","signal_json":"https://onlylabs.fyi/signals/1312c4ff-2f08-43e7-b4f2-d21b32a54afd/signal.json","source":"https://openai.com/index/scaling-kubernetes-to-7500-nodes","lab_dossier":"https://onlylabs.fyi/labs/openai","lab_dossier_json":"https://onlylabs.fyi/labs/openai/dossier.json","analysis":"https://onlylabs.fyi/analysis/openai","analysis_json":"https://onlylabs.fyi/analysis/openai/analysis.json","analysis_evidence_json":"https://onlylabs.fyi/analysis/openai/evidence.json","category":"https://onlylabs.fyi/frontier","category_json":"https://onlylabs.fyi/frontier.json","category_feed":"https://onlylabs.fyi/frontier/feed.xml","category_signals_json":"https://onlylabs.fyi/signals.json","topic":"https://onlylabs.fyi/topics/talking","topic_signals_json":"https://onlylabs.fyi/topics/talking/signals.json","topic_feed":"https://onlylabs.fyi/topics/talking/feed.xml","data_business":{"radar":"https://onlylabs.fyi/data-radar","radar_json":"https://onlylabs.fyi/data-radar.json","opportunities":"https://onlylabs.fyi/opportunities","opportunities_json":"https://onlylabs.fyi/opportunities.json","lanes":[{"key":"infrastructure","label":"Infrastructure","url":"https://onlylabs.fyi/data-radar/infrastructure","json_url":"https://onlylabs.fyi/data-radar/infrastructure/signals.json"}]}},"answer_pack":{"answer":"OpenAI published Scaling Kubernetes to 7,500 nodes. 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Scaling a single Kubernetes cluster to this size is rarely done and requires some special care, but the upside is a simple infrastructure that allows our machine learning research teams to move faster and scale up without changing their code. Since our last post on scaling to 2,500 nodes⁠ we’ve continued to grow our infrastructure to meet researcher needs, in the process learning many additional lessons. This post summarizes those lessons so that others in the Kubernetes community can benefit from them, and ends with problems we still face that we’ll be tackling next. Loading... Our workload Before we get too far, it’s important to describe our workload. The applications and hardware we run with Kubernetes are pretty different from what you may encounter at a typical company. 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