GPT-5.5 Thinking shows 5.4 label in ChatGPT

// 51d agoNEWS

GPT-5.5 Thinking shows 5.4 label in ChatGPT

Reddit users are reporting a confusing routing or labeling issue where a ChatGPT 5.5 Thinking selection appears to produce responses identified as 5.4 Thinking instead. The thread also describes blank-screen behavior in the app that resolves only after reopening the chat, which points to a client or backend routing bug rather than a meaningful model downgrade.

// ANALYSIS

This is a trust bug, not just a naming bug, because users care less about the exact version string than whether the model picker does what it says.

// TAGS

chatgptopenaigpt-5-5-thinkinggpt-5.4thinking-modemodel-routingaireddit

DISCOVERED

51d ago

2026-04-29

PUBLISHED

51d ago

2026-04-28

RELEVANCE

7/ 10

AUTHOR

raskingballs

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