Editorial illustration for OpenAI Outpaces Anthropic in Q3 API Growth, Astra Model Launch Imminent
OpenAI Surpasses Anthropic in Q3 API Growth
Three months ago, Anthropic looked like it had pulled ahead for good. The company hit a $65 billion annualized revenue run rate and, for the first time, beat OpenAI in quarterly revenue outright: $11.6 billion against OpenAI's $6.7 billion, according to the Wall Street Journal. Bloomberg reported growth had cooled at both companies, with open-weight models eating into demand for either lab's flagship products.
Then, on July 9, OpenAI shipped GPT-5.6 Sol. The numbers since suggest the model did more than pad out a release calendar. CNBC reports OpenAI's overall revenue is up 35 percent this quarter, with enterprise revenue climbing more than 50 percent. Corporate card and spend-management firm Ramp, which tracks business API usage, puts OpenAI's quarter-over-quarter growth in that category at 82 percent, ahead of Anthropic's 76 percent.
Neither company is standing still. OpenAI has Astra queued up for release in the coming weeks, and word around the industry points to Anthropic answering with a revamped Fable 5.1. What that competition looks like from the inside is where things get specific.
Why this matters
For anyone building on these APIs, the 82-to-76 spending gap is a signal worth watching, not a verdict. Ramp's numbers track dollars flowing through corporate cards, which tells us enterprises are shifting budget toward OpenAI right now, but a six-point swing in one quarter can reverse just as fast once Astra and Fable 5.1 both ship. We'd caution founders against reading GPT-5.6 Sol's 35 percent revenue jump as proof of a permanent lead.
Model launches reshuffle these tables constantly, and Anthropic hasn't shown its hand yet. What's more useful here is the pattern: enterprise revenue growing faster than overall revenue at OpenAI suggests procurement teams are picking a primary vendor, not just testing both. If you're a developer choosing where to build, that consolidation trend matters more than any single quarter's percentage.
Watch what Astra actually does on release, watch how Anthropic prices and positions Fable 5.1 in response, and treat vendor loyalty as a moving target for at least another two launch cycles.
Related Reading
Browse all OpenAI news →
Business & Startups Nordic pilot adds Gemini for Education, NotebookLM to boost AI literacy
Business & Startups Kling launches Video O1, all-in-one model with MVL bridge using transformer
Business & Startups DeepSeek Seeks More Capital Weeks After USD 7B Funding Round
Related Topic OpenAI researcher quits, citing distrust over ad‑driven engagement metrics
LLMs & Generative AI
Related Topic OpenAI launches GPT-Image 1.5 with precise editing for enterprise visuals
LLMs & Generative AI
From Archives Survey: 20% of enterprises lack real-time controls for AI spending sprees
From Archives Ramp launches AI model router with one-year data retention by default
From Archives OpenAI Adds Transparent Backgrounds to GPT-Image-2 API
LLMs & Generative AI
From Archives Anthropic leads OpenAI 44% to 40% in business spend, Ramp data shows
Open Source
Common Questions Answered
How did GPT-5.6 Sol impact OpenAI's Q3 revenue growth compared to Anthropic?
Since GPT-5.6 Sol launched on July 9, OpenAI's revenue increased by 35 percent this quarter, with enterprise revenue growing more than 50 percent according to CNBC. Ramp data shows OpenAI is now outpacing Anthropic in Q3 business API spending growth at 82 percent quarter-over-quarter versus Anthropic's 76 percent, reversing the previous quarter's trend where Anthropic had achieved $11.6 billion in quarterly revenue against OpenAI's $6.7 billion.
What does the 82-to-76 spending gap between OpenAI and Anthropic indicate for API users?
The spending gap tracked through Ramp corporate card data signals that enterprises are currently shifting budget toward OpenAI's APIs, but the article cautions that a six-point swing in one quarter can reverse quickly once competing models like Astra and Fable 5.1 launch. This metric should be viewed as a signal of current market movement rather than a permanent verdict on which platform will maintain dominance.
Why did Anthropic's revenue advantage disappear after leading OpenAI in Q2?
Anthropic had previously hit a $65 billion annualized revenue run rate and beat OpenAI in quarterly revenue outright in Q2, but the landscape shifted after OpenAI shipped GPT-5.6 Sol on July 9. The new model's capabilities drove significant enterprise adoption, causing enterprises to reallocate spending back toward OpenAI's platform despite earlier concerns that open-weight models were eating into demand for both companies' flagship products.
What upcoming model launches could impact the current API spending trends between OpenAI and Anthropic?
Anthropic's Astra model and Fable 5.1 are expected to launch soon and could potentially reshuffle the current spending patterns between the two companies. The article warns against interpreting GPT-5.6 Sol's 35 percent revenue jump as proof of a permanent lead, suggesting that these competing model launches may trigger another shift in enterprise budget allocation.
Further Reading
- OpenAI surpasses Anthropic in Q3 enterprise growth, 82% to 76% - CryptoBriefing
- Anthropic Reportedly Surpasses OpenAI in Quarterly Revenue for the First Time, Hitting $11.6 Billion - XenoSpectrum
- Anthropic surpasses OpenAI in Q2 revenue for the first time - Yahoo Finance / CNBC
- OpenAI Revenue Growth Slows Amid Anthropic Surge - Cryptonomist
- OpenAI 傳下週推出最強模型 Astra！內部代號 mewfour 已進入發布候選階段 - BlockTempo
