OpenAI — Safety Researchers: 650

Note: The claim specifies 650 safety researchers as of 2025-12 (December 2025). The source text explicitly states that safety team numbers 'weren't disclosed.' While the source mentions that approximately 1,000 employees across applied engineering, scaling, and safety received retention bonuses, this is a combined figure across three departments, not a specific count of safety researchers alone. The source does not provide the specific 650-person figure claimed, nor does it provide data specifically dated to December 2025. Therefore, the claim cannot be verified against this source.