CometAPI Update: Azure OpenAI GPT-4 Series Deprecation

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Azure OpenAI GPT-4 Series Deprecation & Migration

Following upstream Azure OpenAI model lifecycle updates, the following Azure-backed GPT-4 series models have entered the Deprecated stage and are scheduled for retirement in October 2026.

Impact Time: Starting from 2026-07-08, subject to actual upstream provider availability and change timing.

Deprecated Model	Retirement Date	Recommended Replacement
gpt-4o	2026-10-01	gpt-5.1 / gpt-5-mini
gpt-4o-mini	2026-10-01	gpt-5-mini
gpt-4.1	2026-10-14	gpt-5.1 / gpt-5-mini
gpt-4.1-mini	2026-10-14	gpt-5-mini
gpt-4.1-nano	2026-10-14	gpt-5-mini

Some legacy Azure OpenAI routes may become capacity-limited or unavailable before the official retirement date. Please migrate production traffic in advance to avoid service interruption.