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OpenAI upgrades GPT-5.5, as it plans to retire legacy ChatGPT models

·Source: BleepingComputer

Updated:

Executive Summary

OpenAI says it's rolling out a new update that improves the existing GPT-5.5 Instant model, and this move comes ahead of the scheduled retirement of multiple legacy models, including o3. [...]

Analysis

OpenAI says it's rolling out a new update that improves the existing GPT-5.5 Instant model, and this move comes ahead of the scheduled retirement of multiple legacy models, including o3. [...]
Source Attribution

Originally published by BleepingComputer on Jun 2, 2026.

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