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Meta open-sources the 9.4B BlenderBot dialogue model and recipe

Meta released the complete 9.4-billion-parameter BlenderBot model, code, and evaluation setup through ParlAI. The largest publicly released open-domain chatbot at the time blended knowledge, empathy, and personality, while Meta acknowledged hallucination, contradiction, repetition, and unresolved harmful-language risks.

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CURRENT ASSESSMENT · REVISION 1
TOWARD DOOM25confidence 90/100

Why it moved the index

Releasing the complete weights, code, and evaluation recipe for a then-record-scale open-domain dialogue model lowered replication barriers and accelerated generative-model diffusion. High hardware requirements and research-oriented deployment limit near-term impact.

Assessment history

  1. R1
    Toward 25 · confidence 90

    New source-verified historical open-model release absent from the durable corpus.

    11 Aug 2026

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  1. DoomBench assesses “Meta open-sources the 9.4B BlenderBot dialogue model and recipe” as evidence moving toward doom, with magnitude 25 and confidence 90 out of 100 in the competitive race category.

  2. The DoomBench assessment of “Meta open-sources the 9.4B BlenderBot dialogue model and recipe” is based on reporting from Meta AI and records the editorial rationale, source quality, attribution, and revision history.

  3. DoomBench summarizes “Meta open-sources the 9.4B BlenderBot dialogue model and recipe” as follows: Meta released the complete 9.4-billion-parameter BlenderBot model, code, and evaluation setup through ParlAI. The largest publicly...

    https://www.doombench.com/news/meta-open-sources-the-9-4b-blenderbot-dialogue-model-and-recipe-2020-04-29