Charted: The Surging Cost of Training AI Models

Dorothy Neufeld
2025-04-24 10:48:00
www.visualcapitalist.com

See this visualization first on the Voronoi app.

Charted: The Surging Cost of Training AI Models

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Key Takeaways

While detailed information on AI model training costs is limited, it is estimated that Google spent $192 million on Gemini 1.0 Ultra—the highest across leading models.
These costs were calculated based on cloud compute rental prices, which can rake up millions of dollars quickly since companies rent out thousands of supercomputers that run nonstop for weeks.
By contrast, the DeepSeek-V3 reportedly cost $6 million to train, however this cost remains disputed.

Today’s state-of-the-art AI models can cost $100 million or more to train.

Yet as companies pour millions into improving model performance, the escalating costs are raising serious questions in the industry. DeepSeek, a new competitor, cited training costs of just $6 million. Meanwhile, an s1 model from Stanford and the University of Washington cost just $6 to train.

This visualization is part of Visual Capitalist’s AI Week, sponsored by Terzo, shows the dollar cost of training AI models, based on analysis from the 2025 AI Index Report.

Training AI Models is Not Cheap

Below, we show the estimated cost for leading models—from OpenAI’s GPT-4 to xAI’s Grok-2:

Year of Release	Model	Maker	Training Cost (Inflation-Adjusted)
2023	GPT-4	OpenAI	$79M
2023	PaLM 2	Google	$29M
2023	Llama 2-70B	Meta	$3M
2023	Gemini 1.0 Ultra	Google	$192M
2024	Mistral Large	Mistral	$41M
2024	Llama 3.1-405B	Meta	$170M
2024	Grok-2	xAI	$107M

As we can see, OpenAI’s GPT-4 cost $79 million, using models containing artificial neural networks that guess the sequence of words in a string of text.

OpenAI has since released new models o1, o3, and o4-mini, which use a “test-time compute” strategy. This means that the longer the model thinks about an answer, the better the answer it spews out. Today, OpenAI charges $200 per month for a pro o1 subscription, which is reportedly running at a net loss given the scale of queries exceeding the compute costs budgeted to run them.

With a $192 million price tag, Google’s Gemini 1.0 Ultra cost more than several major models. For Gemini Ultra, a large chunk of the costs were for research and development staff salaries (including equity)—making up to 49% of the final cost. Meanwhile, AI accelerator chips accounted for 23% of the total cost, followed by 15% for other server components.

Meanwhile, the Grok-2 model from xAI can answer queries on current events in real-time using data from X. Overall, the model cost $107 million to build, which is now integrated into the Grok AI chatbot on X.

To dive into all the AI Week content, visit our AI content hub, brought to you by Terzo.

Learn More on the Voronoi App

To learn more about this topic from a user perspective, check out this graphic on the most popular AI tools in 2025.

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