Anthropic is weighing the release of a new Claude model to counter OpenAI's GPT-6 Astra, according to a Reuters report carried by AndroidHealines on September 19, 2026, just ahead of its previously reported IPO expected in November at a roughly two trillion dollar valuation. Corporate spend tracker Ramp found GPT-6 Anthropic competition has pulled enterprise AI budgets away from Claude since Astra launched September 3, with GPT-6 Astra enterprise spend share at around 13 percent and Anthropic enterprise market share at around 8 percent. Internal teams are reportedly weighing safety validation requirements against the commercial need to defend corporate accounts before the Anthropic IPO 2026 offering, and Anthropic new Claude model plans have not been finalized, with no specification, name, or release window confirmed publicly. The Wall Street Journal reported Anthropic was targeting a November debut and a raise of up to one hundred billion dollars. OpenAI briefly overtook Anthropic on developer platform OpenRouter this month, a shift last seen in 2024, and GPT-6 Astra ships as a computer-use agent, an area Anthropic has leaned on heavily for enterprise deals. WatcherGuru also covered this Anthropic IPO news on X.