OpenAI has seen a significant revenue increase since the launch of GPT-5.6 Sol on July 9, with overall revenue rising by 35% in the current quarter. Enterprise revenue has grown more than 50%, according to CNBC. This growth is attributed to the model's performance in business API spending, where OpenAI outpaced Anthropic with an 82% quarter-over-quarter increase compared to Anthropic's 76% growth. OpenAI's next model, Astra, is set to launch in the coming weeks, with rumors suggesting Anthropic may respond with an improved Fable 5.1.

Before the launch of GPT-5.6 Sol, Anthropic had reached a $65 billion annualized revenue run rate and had overtaken OpenAI in quarterly revenue for the first time, according to Bloomberg. Anthropic reported $11.6 billion in revenue compared to OpenAI's $6.7 billion, as reported by the Wall Street Journal. Growth had slowed at both labs, partly because open-weight models were gaining ground.

According to Ramp data, OpenAI is growing faster than Anthropic again in Q3 2026, driven by GPT-5.6 Sol. The data shows OpenAI's business API spending growth outpaced Anthropic's, reinforcing the company's position in the competitive landscape.

Source: thedecoder