OpenAI said it considered notifying Canadian police about a user later responsible for a mass shooting.
The company flagged the account in June for potential “furtherance of violent activities”.
At the time, it decided the activity did not meet the threshold for referral to the Royal Canadian Mounted Police.
That standard requires a credible and imminent risk of serious harm.
OpenAI said it found no evidence of concrete attack planning.
After the shooting in Tumbler Ridge, the firm contacted the RCMP and shared relevant information.
The 18-year-old attacker killed eight people before dying from a self-inflicted gunshot wound.
Victims included a teaching assistant and several students.
Police said the suspect had previous mental health-related contact with authorities.
The motive remains unclear.
The case has renewed debate about when technology companies should alert law enforcement.
OpenAI said it will continue to assist the investigation.
