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Research2026-08-18 · source-backed
MIT Technology Review covers a Stanford/MIT effort (Anka Reuel, Shayne Longpre) analyzing 24,521 donated conversations across 52 models from 2023-2025 against vendors' own usage reports. Because Anthropic filters for work-related use, nearly half of real conversations would be excluded. In the unfiltered set: harassment/hate at 27.5% versus Anthropic's reported 5.66%, sexual content 16.7% versus 2.4%, health/relationships 44.2% versus 31.2%. Anthropic's index rests on 1M conversations and OpenAI's on 1.5M, and neither is independently verifiable. If you're reasoning about AI adoption from vendor charts, the denominator is unknowable.
Each link below shares sources, entities, or timing with this story.
Anthropic partners with OpenAI / Shared entities / Same source domain / Shared topic / Earlier coverage
Linked by a graph relationship (Anthropic partners with OpenAI); both cover Anthropic, Claude, MIT, MIT Technology Review; reported by the same outlet (technologyreview.com).
Linked by a graph relationship (Anthropic partners with OpenAI); both cover Anthropic, Claude, MIT Technology Review, OpenAI; reported by the same outlet (technologyreview.com).
OpenAI uses Claude Code / Shared entities / Shared topic / Earlier coverage
Linked by a graph relationship (OpenAI uses Claude Code); both cover Anthropic, CLAUDE, MIT, OpenAI; overlapping topics (anthropic, claude).
OpenAI released Codex / Shared entities / Shared topic / Earlier coverage / Tension
Linked by a graph relationship (OpenAI released Codex); both cover Anthropic, MIT, OpenAI; overlapping topics (against, anthropic, claude).
OpenAI uses Claude Code / Shared entities / Shared topic / Earlier coverage / Tension
Linked by a graph relationship (OpenAI uses Claude Code); both cover Claude, MIT, OpenAI; overlapping topics (against, claude).
Anthropic partners with OpenAI / Shared entities / Shared topic / Earlier coverage / Tension
Linked by a graph relationship (Anthropic partners with OpenAI); both cover Anthropic, Claude, OpenAI; overlapping topics (against, anthropic).
OpenAI uses Claude Code / Shared entities / Shared topic / Earlier coverage / Tension
Linked by a graph relationship (OpenAI uses Claude Code); both cover Anthropic, CLAUDE, OpenAI; overlapping topics (anthropic, claude).
OpenAI released Codex Security / Shared entities / Shared topic / Earlier coverage / Tension
Linked by a graph relationship (OpenAI released Codex Security); both cover Anthropic, Claude, OpenAI; overlapping topics (against, claude).