ClaimsDario Amodei

“most of the improvements in Cloud 3.7 Sonnet as well as Cloud 3.6 Sonnet are in the post-training phase.”

Dario Amodei, Anthropic CEO, interviewed 28 February 2025 Hard Fork - Anthropic's C.E.O. Dario Amodei on Surviving the A.I. Endgame Transcript (Podscripts (Hard Fork)) archived copy

Factual AI capabilities

Most of the improvements in Claude 3.7 Sonnet and Claude 3.6 Sonnet came in the post-training phase.

Own records only Only the person's or their organisation's own records speak to it, so it is not scored.

Factual: Statements about the present or the past, checked against the record: did they hold up?

Said for an organisation they lead or work for; it counts on both records.

Reasoning

Where improvements came from in training is internal to Anthropic.

Cite this claim

Dario Amodei, “Most of the improvements in Claude 3.7 Sonnet and Claude 3.6 Sonnet came in the post-training phase.” (said 28 February 2025). Verdict: own records only. Reliability API, claim c_c2ffbf9d8e6a, method 0.1.0+c876030c, dataset release v1.1.2. https://epistacklabs.com/claims/c_c2ffbf9d8e6a

This claim is in dataset release v1.1.2, with the same verdict.

Reply to this claim

For Dario Amodei, or someone speaking for them: a correction or counter-evidence. Replies are read before anything is shown; an approved reply shows your name, role, date, statement and link. Your email address is never shown and is deleted 30 days after the decision (privacy).

More factual claims by Dario Amodei

  1. Mixed Factual 23 September 2026
    “It’s easy to dismiss this as a one-off or curiosity, but we’ve repeatedly seen a pattern where AI performance in new intellectual domains goes from weak to superhuman in a matter of a few years.”

    AI performance in new intellectual domains has repeatedly gone from weak to superhuman within a few years.

  2. Mixed Factual 10 March 2025
    “we were measuring these trends back when models cost $1,000 or $10,000 to train”

    Amodei's group measured AI scaling trends when models cost $1,000 or $10,000 to train.

  3. Mixed Factual 28 February 2025
    “a lot of the other reasoning models in the market are trained primarily on math and competition coding,”

    Many other companies' reasoning models on the market are trained primarily on math and competition coding.

  4. Mostly true Factual 28 February 2025
    “I do think AI coding is moving the fastest of all the other areas.”

    Amodei said he thinks AI coding is moving the fastest of all the areas of AI.

  5. Mostly true Factual 28 February 2025
    “Because when it knows that it doesn't get any gain out of thinking further, it doesn't think for longer.”

    The model sometimes gives a very short response because, when it knows it gains nothing from thinking further, it does not think for longer; a bound on how long it thinks is still described as valuable.

All of them

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