Financial Times: Among the concerns for prospective investors is the resurgence of Anthropic’s chief rival, OpenAI. The ChatGPT maker has attracted a growing share of customer spending since releasing GPT 5.6 in July, overtaking Anthropic in weekly spend for the first time in more than two and a half years, according to data from model platform OpenRouter.
…These cheaper models, primarily produced today by Chinese companies such as DeepSeek and Moonshot and tech giants such as Meta, are approaching performance levels of more sophisticated “closed” frontier models from OpenAI and Anthropic and gaining market share…