Google Unveils Gemini 2.5: A New Family of AI Reasoning Models
Introduction
On Tuesday, Google unveiled Gemini 2.5, a new family of AI reasoning models that pauses to "think" before answering a question. This innovation is a significant milestone in the development of artificial intelligence, as it allows AI models to reason and reflect before providing an answer.
Background
The concept of AI reasoning models has been gaining attention in the tech industry. Since OpenAI launched the first AI reasoning model in September 2024, several companies have been racing to match or exceed its capabilities. Today, Anthropic, DeepSeek, Google, and xAI all have AI reasoning models, which use extra computing power and time to fact-check and reason through problems before delivering an answer.
New AI Models
Google has experimented with AI reasoning models before, but Gemini 2.5 represents the company’s most serious attempt yet at besting OpenAI’s "o" series of models. The company claims that Gemini 2.5 Pro outperforms its previous frontier AI models, and some of the leading competing AI models, on several benchmarks.
Benchmarks
Google claims that Gemini 2.5 Pro excels at creating visually compelling web apps and agentic coding applications. On an evaluation measuring code editing, called Aider Polyglot, Google says Gemini 2.5 Pro scores 68.6%, outperforming top AI models from OpenAI, Anthropic, and Chinese AI lab DeepSeek. However, on another test measuring software dev abilities, SWE-bench Verified, Gemini 2.5 Pro scores 63.8%, outperforming OpenAI’s o3-mini and DeepSeek’s R1, but underperforming Anthropic’s Claude 3.7 Sonnet, which scored 70.3%. On Humanity’s Last Exam, a multimodal test consisting of thousands of crowdsourced questions relating to mathematics, humanities, and the natural sciences, Google says Gemini 2.5 Pro scores 18.8%, performing better than most rival flagship models.
Features
To start, Google says Gemini 2.5 Pro is shipping with a 1 million token context window, which means the AI model can take in roughly 750,000 words in a single go. That’s longer than the entire "Lord of The Rings" book series. And soon, Gemini 2.5 Pro will support double the input length (2 million tokens). Google didn’t publish API pricing for Gemini 2.5 Pro, but the company says it’ll share more in the coming weeks.
Conclusion
Google’s new AI reasoning models mark a significant step forward in the development of artificial intelligence. With its new family of AI models, including Gemini 2.5 Pro, Google is poised to revolutionize the way AI interacts with humans. As the company continues to push the boundaries of what AI can do, we can expect to see even more innovative applications and use cases emerge.
FAQs
Q: What is AI reasoning?
A: AI reasoning is the ability of an AI model to reason and reflect before providing an answer, allowing it to make more accurate and informed decisions.
Q: What is the difference between AI reasoning and other AI models?
A: AI reasoning models use extra computing power and time to fact-check and reason through problems before delivering an answer, whereas other AI models typically rely on pre-trained data and algorithms.
Q: How does Gemini 2.5 Pro compare to other AI models?
A: Google claims that Gemini 2.5 Pro outperforms its previous frontier AI models, and some of the leading competing AI models, on several benchmarks.
Q: When will API pricing for Gemini 2.5 Pro be available?
A: Google will share more information about API pricing for Gemini 2.5 Pro in the coming weeks.
