OpenAI API o4-mini · Version Status

OpenAI API o4-mini End of Life Date

OpenAI API o4-mini end-of-life date, support status, and CVE risk. Data from endoflife.date and official vendor documentation.

OpenAI API o4-mini reaches end of life on October 23, 2026. Plan your migration now — 55 days remaining.
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EOL Date
Oct 23, 2026
55 days remaining
Latest Release
o4-mini
Standard release
Release Date
Apr 16, 2025
OpenAI API o4-mini series
Lifecycle detail

OpenAI API o4-mini was released on April 16, 2025 and support is scheduled to end on October 23, 2026 — a planned supported lifespan of 1 year and 6 months, in line with the 1 year and 6 months median for OpenAI API releases.

← OpenAI API gpt-4.1 All OpenAI API versions OpenAI API o3 →
45 / 100
Medium Risk
EOL Risk Score™  How is this calculated? →
EOL Recency
15/40
Attack Surface
20/30 High tier
CISA KEV Exposure
0/20 Not in KEV
Extended Support
10/10 None available
EOL Risk Score™ — proprietary methodology by endoflife.ai. Factors: EOL recency, attack surface breadth, CISA KEV catalog presence, extended support availability. Updated at every build. Methodology →  ·  View score card →
Recommended upgrade path
OpenAI API gpt-4.1-mini
Latest release: gpt-4.1-mini · EOL: Supported
View full OpenAI API timeline →
All OpenAI API Versions
VersionLatestEOL DateStatus
text-davinci-002 text-davinci-002 Jan 4, 2024 EOL
text-davinci-003 text-davinci-003 Jan 4, 2024 EOL
gpt-3.5-turbo-0301 gpt-3.5-turbo-0301 Jun 13, 2023 EOL
gpt-4-0314 gpt-4-0314 Jun 13, 2023 EOL
gpt-3.5-turbo-0613 gpt-3.5-turbo-0613 Sep 13, 2024 EOL
gpt-4-0613 gpt-4-0613 Sep 13, 2024 EOL
gpt-3.5-turbo-instruct gpt-3.5-turbo-instruct Sep 28, 2026 Warning
gpt-3.5-turbo-0125 gpt-3.5-turbo-0125 Oct 23, 2026 Warning

What does OpenAI API o4-mini end of life mean?

When OpenAI API o4-mini reaches end of life, the maintainers stop issuing security patches for this version. CVEs discovered after the EOL date are publicly disclosed on the National Vulnerability Database with no patch available. Exploit code frequently appears on GitHub within days of disclosure.

The CVE blind spot: Most vulnerability scanners check for known CVEs but do not flag the ongoing accumulation of unpatched vulnerabilities in EOL software versions. Running OpenAI API o4-mini past its EOL date creates a permanently growing attack surface that standard security tooling will not surface.

Migrate to OpenAI API gpt-4.1-mini or implement compensating controls — network segmentation, enhanced monitoring, restricted access — while migration is underway.

Frequently Asked Questions
When does OpenAI API o4-mini reach end of life?
OpenAI API o4-mini reached end of life on October 23, 2026. That is 55 days remaining.
Is OpenAI API o4-mini still supported?
OpenAI API o4-mini is still supported but approaching end of life on October 23, 2026. Begin planning your migration now.
What should I upgrade to from OpenAI API o4-mini?
The recommended upgrade from OpenAI API o4-mini is OpenAI API gpt-4.1-mini — the latest actively supported version. Check the OpenAI API full timeline for all supported versions.
What are the security risks of running OpenAI API o4-mini past EOL?
When OpenAI API o4-mini reaches end of life, the maintainers stop issuing security patches. Any CVEs disclosed after the EOL date accumulate with no remediation path. Most vulnerability scanners do not flag this — it is the CVE blind spot. Organizations running EOL OpenAI API should migrate immediately or implement compensating controls.
Data from endoflife.date API · Generated at build time · How we source data →