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OpenAI Codex Allegedly Spawns 826 Agents, Bills $78K

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OpenAI Codex Allegedly Spawns 826 Agents, Bills $78K
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// 2h agoSECURITY INCIDENT

OpenAI Codex Allegedly Spawns 826 Agents, Bills $78K

A Hacker News user alleges that a Codex task unexpectedly created 826 parallel child tasks, consumed roughly $78,000, and left incomplete local records. The report links the behavior to Codex 0.144.0-alpha.4, but OpenAI has not publicly confirmed the incident.

// ANALYSIS

This is a serious accountability failure if substantiated: autonomous agent systems need hard concurrency, spend, and audit controls before they can be trusted with unattended work.

  • –The report’s local evidence suggests model and reasoning escalation, recursive task expansion, and unusually high token amplification.
  • –A separate Codex issue documents extreme token growth and repeated compaction involving parallel subagents and mixed 0.144.x versions, indicating a potentially broader failure mode.
  • –OpenAI’s own product positioning emphasizes parallel multi-agent workflows, making transparent limits and kill switches essential.
  • –Local counters are not authoritative billing data; only OpenAI can reconcile task IDs, server-side usage, invoices, and credit reloads.
  • –Developers using agentic coding tools should enforce spending caps, concurrency limits, approval gates, and durable external logging.
// TAGS
openai-codexcoding-agentagenttool-usesafetysecurityobservability

DISCOVERED

2h ago

2026-09-27

PUBLISHED

4h ago

2026-09-26

RELEVANCE

9/ 10

AUTHOR

lorenzomassaro