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Capability gains

OpenAI releases o1 reasoning models

OpenAI launched o1-preview and o1-mini with reinforcement-learning-driven reasoning that spends more inference time on complex problems, substantially improving mathematics, coding, and scientific performance.

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CURRENT ASSESSMENT · REVISION 1
TOWARD DOOM72confidence 99/100

Why it moved the index

Inference-time reasoning produced a material jump on difficult technical tasks and widened practical deployment through ChatGPT and API access, while the accompanying system card documented elevated reasoning-linked risks and safeguards.

Assessment history

  1. R1
    Toward 72 · confidence 99

    New September 2024 exact reasoning-model launch with no durable story or model collision.

    12 Aug 2026

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  1. DoomBench assesses “OpenAI releases o1 reasoning models” as evidence moving toward doom, with magnitude 72 and confidence 99 out of 100 in the capability gains category.

  2. The DoomBench assessment of “OpenAI releases o1 reasoning models” is based on reporting from OpenAI and records the editorial rationale, source quality, attribution, and revision history.

  3. DoomBench summarizes “OpenAI releases o1 reasoning models” as follows: OpenAI launched o1-preview and o1-mini with reinforcement-learning-driven reasoning that spends more inference time on complex problems, substantially improving...

    https://www.doombench.com/news/openai-releases-o1-reasoning-models-2024-09-12