Anthropic CEO's Open-Weight Stance Draws Public Pushback From Model Researchers

According to reports monitored by Beating, Anthropic CEO Dario Amodei most recently addressed the open-source controversy, stating the company does not support an outright ban on open-weight models. He acknowledged such models can lower costs, encourage competition, and enable in-house deployment.

However, Shaun, a model post-training researcher at Anthropic, publicly disagreed with the statement and thanked other employees who pushed for open weights. The core dispute centers on Anthropic's continued restrictions on releasing frontier models; the company has not joined open-source advocacy letters and has never committed to releasing Claude weights.