OpenAI API Models o3
OpenAI API Models o3
The OpenAI API Models o3 reaches end of service life on Dec 11, 2026. Third-party support keeps it managed past that date — issue management, vulnerability remediation, and compliance maintenance from 24/7 engineers.
24/7 engineers own your OpenAI API Models o3 incidents end to end.
Mitigation and patch-around guidance when the vendor no longer ships fixes.
Controls evidence and documentation that keep auditors satisfied.
Specifications
- product
- openai-api-models
- release
- o3
- product Label
- OpenAI API Models
- release Label
- o3
- codename
- lts
- latest Version
- release Date
- 2025-04-16
- maintained
- true
- source Url
- https://endoflife.date/openai-api-models
Lifecycle Dates
- End of Service Life
- Dec 11, 2026
- Last OEM Support
- Jun 11, 2026
OEM vs. 3rd Party Support
See how third-party support compares to the vendor contract for OpenAI API Models o3 — monitoring, break/fix, vulnerability work, operations and compliance, before and after EOSL.
| Feature | OEM Support | 3rd Party Support |
|---|---|---|
| Post-EOSL Support | ||
| Break/Fix Support | Until EOSL | |
| 24/7 Monitoring | ||
| Vulnerability Scanning & Remediation | ||
| Managed Operations | ||
| Procedure & Configuration Review | ||
| Compliance & Audit Documentation | Limited | |
| Discounted Migration to Other Platforms |
Why Choose 3rd Party Support for OpenAI API Models o3?
Vulnerability Remediation
Scanning, mitigation and patch-around guidance for OpenAI API Models o3 when the vendor no longer ships fixes.
Compliance Maintenance
Procedure review, controls evidence and the documentation auditors ask for — maintained continuously, not scrambled at audit time.
24/7 Expert Support
Engineers who know this release monitor, manage and fix issues around the clock — break/fix to managed operations.
OpenAI API Models o3 Support: Frequently Asked Questions
Is the OpenAI API Models o3 still supported?
Yes, but OpenAI API Models support for the OpenAI API Models o3 ends on Dec 11, 2026. You can upgrade on the vendor's schedule, or move to third-party support and keep the release you're on — issues managed, vulnerabilities remediated, compliance maintained.
When is the OpenAI API Models o3 end of service life (EOSL) date?
OpenAI API Models lists the end of service life for the OpenAI API Models o3 as Dec 11, 2026.
Can I keep using the OpenAI API Models o3 after its EOSL date?
Yes. EOSL means OpenAI API Models stops issuing patches and support — the software itself keeps running. Third-party support covers it from there: issue management, security vulnerability remediation, and the compliance documentation auditors ask for, for as long as you choose to run it.
How much does third-party support for the OpenAI API Models o3 cost?
Typically 40-70% below the OEM maintenance renewal price. Exact pricing depends on quantity, service level and location. You get an indicative price within 24 hours and a firm quote within 48.