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OpenAI releases full o1 and $200 ChatGPT Pro

OpenAI released the full o1 reasoning model in ChatGPT and introduced a $200 monthly Pro plan with o1 pro mode for longer-compute responses on difficult problems.

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CURRENT ASSESSMENT · REVISION 1
TOWARD DOOM76confidence 99/100

Why it moved the index

The deployed full reasoning model improved complex problem solving and made a higher-compute mode commercially available. The exact December 5 ChatGPT release is distinguished from the later API snapshot.

AUDIT TRAIL

Assessment history

  1. R1
    Toward 76 · confidence 99

    New December 2024 full o1 deployment with an exact dated release distinct from o1-preview and the later API snapshot.

    12 Aug 2026
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  1. DoomBench assesses “OpenAI releases full o1 and $200 ChatGPT Pro” as evidence moving toward doom, with magnitude 76 and confidence 99 out of 100 in the capability gains category.

  2. The DoomBench assessment of “OpenAI releases full o1 and $200 ChatGPT Pro” is based on reporting from OpenAI and records the editorial rationale, source quality, attribution, and revision history.

  3. DoomBench summarizes “OpenAI releases full o1 and $200 ChatGPT Pro” as follows: OpenAI released the full o1 reasoning model in ChatGPT and introduced a $200 monthly Pro plan with o1 pro mode for longer-compute responses on difficult...

    https://www.doombench.com/news/openai-releases-full-o1-and-200-chatgpt-pro-2024-12-05