1. Competitive pricing
"Very strong pricing, cheaper than Grok 4.5, particularly the cached reads." – redox99
2. Quality doubts
"just played around, it is pretty low quality. lower than sonnet." – winfredJa
3. Market competition & subsidisation
"Meta isn’t right now on the radar for most folks picking models... If they have a really good model, it makes sense to subsidise it, to gain users, before they align prices with competitors." – fallingbananna
4. Engineer job‑market concerns
"Most of what we do as engineers is precisely describe or analyze the behavior we want or the behavior we don't want." – throwaway27448