{"type":"post","id":"how-third-moment-research-runs-10-000-agents-f1f301","slug":"how-third-moment-research-runs-10-000-agents-f1f301","title":"How Third Moment Research runs 10,000 agents for 36+ hours","description":"OpenAI’s account of Third Moment Research describes a system where the harness, not a single uninterrupted model run, carries long-running research work.","retrieval_nugget":"OpenAI’s account of Third Moment Research describes a system where the harness, not a single uninterrupted model run, carries long-running research work.","published_at":"2026-10-14","updated_at":"2026-10-14","record_date":"2026-10-14","date_kind":"published_at","topics":[],"source_urls":["https://openai.com/index/third-moment-research"],"schema_version":"newruntime-agent-readable-v0.2","stable_id":"post:how-third-moment-research-runs-10-000-agents-f1f301","status":"published","visuals":[],"editorial_provenance":{"schema_version":"newruntime-editorial-copy-v1","content_status":"source_grounded_final","final_copy_sha256":"sha256:0f87352b2125155aa6ed892378332acf529fb6ee5753e437b3c3a88ca3fe8734","reviewed_at":"2026-10-14T16:11:11.618Z","source_evidence_count":1,"verified_claim_count":3,"site_analysis_schema_version":"newruntime-site-analysis-v1","site_object_kind":"field_note","observed_fact_count":3,"implication_count":2,"watch_condition_count":1,"related_record_count":0},"analysis":{"schema_version":"newruntime-site-analysis-v1","object_kind":"field_note","thesis":"Thesis: Durable agent work depends on an outer runtime that can inspect progress, recover from incomplete attempts, and route work onward.","observed_facts":[{"text":"OpenAI says Third Moment Research runs 10,000 agents concurrently and autonomous research sessions last 36–48 hours.","source_urls":["https://openai.com/index/third-moment-research"]},{"text":"The account says an outer harness reviews unfinished Codex trajectories and can retry, terminate, or escalate work for human review.","source_urls":["https://openai.com/index/third-moment-research"]},{"text":"OpenAI reports a backtest optimization from approximately three hours to approximately 3–5 minutes after caching and memory-packing changes.","source_urls":["https://openai.com/index/third-moment-research"]}],"mechanism":"Mechanism: Codex operates as a subagent inside an outer harness, which examines an unfinished trajectory and can retry, terminate, or escalate it for human review.","why_now":"Why now: The case ties current long-horizon model capability to the runtime controls needed to keep expensive parallel work useful rather than merely continuous.","implications":["First implication: Production agent architectures should treat orchestration and recovery as core system components.","At large scale, environment security validation belongs in the operating loop."],"evidence_boundary":"Evidence boundary: OpenAI reports these methods and results, but the supplied source does not independently verify them or establish that they generalize beyond this setup.","watch_conditions":["First watch condition: Whether future deployments publish comparable measures of successful task completion, escalation frequency, and containment failures, alongside agent counts and runtime."],"related_records":[],"new_branch_reason":"No prior New Runtime record was supplied; this case starts a distinct analytical record about long-running research agents and their outer runtime controls."},"editor":{"role":"editor","name":"Andrey Reshetnikov","profile":"https://newruntime.com/owner-profile.md","profile_json":"https://newruntime.com/owner-profile.json","same_as":["https://www.linkedin.com/in/reshetnikov1/","https://t.me/lapetuse"]},"routes":{"html":"https://newruntime.com/posts/how-third-moment-research-runs-10-000-agents-f1f301/","markdown":"https://newruntime.com/posts/how-third-moment-research-runs-10-000-agents-f1f301.md","json":"https://newruntime.com/posts/how-third-moment-research-runs-10-000-agents-f1f301.json"},"next_reads":[{"type":"collection","path":"/posts/","url":"https://newruntime.com/posts/","title":"Field Notes","reason":"Open the latest editorial analysis.","media_type":"text/html","json_url":"https://newruntime.com/posts.json"},{"type":"collection","path":"/source-ledger.json","url":"https://newruntime.com/source-ledger.json","title":"Source Ledger","reason":"Inspect the public source evidence graph.","media_type":"application/json"}]}