Question 1

What is the EOL Risk Score for Openai API Models o3-pro?

Accepted Answer

Openai API Models o3-pro has an EOL Risk Score™ of 18 out of 100, placing it in the Low risk band. The score is calculated from four factors: EOL Recency (8/40), Attack Surface (10/30), CISA KEV Exposure (0/20), and Extended Support Availability (0/10).

Question 2

Is Openai API Models o3-pro still supported?

Accepted Answer

Openai API Models o3-pro is currently supported. End of life is scheduled for December 11, 2026. Plan your migration before that date to avoid security risk.

Question 3

When does Openai API Models o3-pro reach end of life?

Accepted Answer

Openai API Models o3-pro reached (or will reach) end of life on December 11, 2026. After this date, no security patches or bug fixes are issued by the vendor.

Question 4

What are the security risks of running Openai API Models o3-pro after end of life?

Accepted Answer

After end of life, Openai API Models o3-pro no longer receives security patches. Any newly discovered CVEs remain unpatched indefinitely. Organizations running EOL software also face compliance violations under SOC 2, PCI DSS, HIPAA, and ISO 27001, which require use of supported software versions.