[Altman Responds to Kimi K3: OpenAI More Cost-Effective in Certain Speed Tiers] According to monitoring by Beating, OpenAI CEO Sam Altman addressed the open-source flagship model Kimi K3 from Dark Side of the Moon on the podcast *Invest Like the Best*. The host described it as the most noteworthy AI release of the week and asked whether it could become a milestone event similar to DeepSeek. Altman did not directly comment on whether Kimi K3 is a milestone or provide a capability comparison. He emphasized that OpenAI aims to offer the most cost-effective models across different speed and price tiers, stating that under specific latency requirements, OpenAI is currently more cost-effective than Kimi. However, he did not specify the exact models, prices, or testing conditions. Altman acknowledged that low-cost models and open-weight models will have a long-term presence. Some users need to deploy and modify weights themselves, so open-source models will always have a market. OpenAI will also distill its large models into smaller, cheaper ones. Regarding concerns about OpenAI models being distilled by competitors, Altman said this is not among his top ten worries. He believes OpenAI will have massive inference demand in the future, and even if profit margins are low, the revenue scale will be sufficient to continue supporting expensive model training. [Original Article Link]