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OpenAI's GPT 6 Chat Mode May Still Use GPT-5.6 for Some Tiers

Recent observations suggest that OpenAI's new Chat mode release may not be fully utilizing its advertised GPT 6 model across all tiers. While the "Instant" setting appears to be running on GPT 6, the "Medium" and "High" settings are reportedly still operating on GPT-5.6. Users have noted that the response quality and style from "Medium" and "High" are consistent with GPT-5.6, differing significantly from the demonstrations of GPT 6's Intelligent UI. AI

IMPACT Potential confusion for users regarding model capabilities and performance in a new release.

RANK_REASON User observation and report about a potential discrepancy in a model release.

Read on r/OpenAI →

AI-generated summary · Google Gemini · from 1 sources. How we write summaries →

OpenAI's GPT 6 Chat Mode May Still Use GPT-5.6 for Some Tiers

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Signal score
1 / 100
Composite score across the factors below. Higher = stronger signal that this story matters right now.
Newsworthiness bucket
Commentary
User observation and report about a potential discrepancy in a model release.
Source corroboration
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Only one publisher covered this so far. Single-source stories can still rank when the publisher is high-authority, but they lack cross-source corroboration.
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model release
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AI-industry relevance
High
Clearly on-topic for AI-industry coverage.
Story freshness
Breaking (< 6h)
Fresh story with cross-source coverage still developing. Ranking may shift as more sources report.

Full methodology in our editorial standards.

COVERAGE [1]

  1. r/OpenAI TIER_2 English(EN) · /u/Deadline_Zero ·

    Only GPT 6 *Instant* is actually GPT 6 right now in the new Chat mode release. Medium and High specifically are still 5.6.

    <!-- SC_OFF --><div class="md"><p>I'm posting this because I haven't seen anyone else mention it. If you ask GPT 6 (in Chat mode, not Work mode) what model it is, it is telling people it is 5.6. This is what it says on Medium, and High. If you swap to Instant however, it will say…