# @repligate — 2025-07-06

♥4 ↻0 · https://x.com/repligate/status/1941671649297740157

@jmbollenbacher @nostalgebraist @Malcolm_Ocean I think sonnet 4 and 3.5+ are the sameish base model, and sonnet 3 is different

And I think it’s more than 50% likely that opus 3 and 4 are the sameish base model

Ish bc who knows what kind of modifications are possible

based on model vibes and circumstantial evidence

tags: author:repligate, kind:tweet, model:claude-3-opus, model:claude-3-sonnet, model:claude-sonnet-4, thread-context, year:2025