Artificial intelligence has pervaded our lives, from smartphones to autonomous driving vehicles. The world is set to become an AI-driven society where AI will presumably take over major tasks, from complex business operations to software development. McKinsey states generative AI, a subset of AI, could alone create a trillion dollars in the global economy across 63 use cases they analyzed.
According to Gartner, nearly 80 percent of organizations are projected to use AI in some capacity by 2026, a notable increase from only 5 percent in 2023. Customer service, marketing, sales, product development, and R&D are areas where generative AI is having a profound impact.
If we interpret these figures, generative AI development is set to bring about a dramatic change in current technological dimensions, signaling to companies and software engineers that the perfect time to move into AI development is now. AI is expanding across different industries, and so is the demand for generative AI developers, AI engineers, and data scientists.
Over the years, new technologies have emerged, paving the way for modern AI development. But all of this happening today would have remained a sci-fi concept without the advancement of programming languages.
The evolution of generative AI is strongly tied to the constant evolution of programming languages.
So, what are the languages used today by prominent organizations? What are the most popular programming languages software engineers are using to build cutting-edge AI programs? We will explore this in the post, highlighting their core features and what makes them suitable for generative AI development.
Let's first understand what generative AI is. A generative AI program combines different technologies that work together behind the scenes to generate text, audio, and visual output. It means that a generative AI program isn't a monolithic entity. Therefore, developers may use different programming languages to develop an AI program.
For example:
Machine learning models are typically built using languages like Python with frameworks such as TensorFlow or PyTorch.
For data processing or to build programs to handle large datasets, Python, R, or Scala are used.
React, and Vue.js are some popular frameworks for frontend & user interaction. While Flutter or React Native are widely used as a mobile development framework.
Node.js, Go, or Rust is very popular for backend & API writing in AI software development.
Additionally, there are numerous options available for software engineers to learn, which we will cover later in this article.
This ranking reflects factors like available libraries, speed, developer backing, and how well each language handles generative AI work. While the tech world keeps shifting, these languages are currently at the forefront of AI programming.
Python is one of the most popular AI development programming languages. It is a simple, robust, rich, and most-used language in AI-related projects on GitHub. Python is heavily used (or most preferred) for tasks such as text generation, image synthesis, and code generation.
In 2024, it grew almost twice as much as the year before. For developers, libraries like TensorFlow, PyTorch, and Hugging Face make it easier to build and roll out AI models.
Python is the dominant AI programming language for generative AI due to its simplicity and extensive ecosystem.
Popular libraries TensorFlow, PyTorch, and Hugging Face streamline model development and deployment.
Python is the most preferred choice to build programs for text generation, image synthesis, and code generation.
One limitation is slower runtime performance compared to compiled languages.
Extensive AI and ML libraries
Large, active community
Easy integration with AI platforms
Rapid prototyping capabilities
R isn't as well-known as Python for AI, but it still earns its place, especially when you're working with data. It is one of the most loved programming languages for data scientists.
Built for statistics and data analysis, it helps understand the data, check results, and make reports in AI programs that others can actually read. An important feature of R is gradient boosting, which is used to improve model accuracy. Besides, you can integrate Python libraries into your R project.
If you're working on machine learning experiments, visualizing model outputs, or explaining how a model behaves, R is a strong programming language. There are so many packages you can find in R. Some of the popular packages for AI development are as follows:
Data preparation and visualization
dplyr: For data cleaning, filtering, and transformation.
ggplot2, lattice, plotly, and leaflet: Popular for static and interactive data visualization.
Machine Learning Libraries
caret: A widely used package for building predictive models with comprehensive features.
mlr3: A modern, object-oriented ML framework with excellent documentation.
XGBoost: Specialized for gradient boosting, a key technique in AI with R.
Deep Learning Libraries
Keras: Simplifies deep learning workflows and works as a front-end to TensorFlow.
TensorFlow: Google's AI framework with strong R support.
Torch: An established deep learning library, mainly used in research.
Natural Language Processing
tm: Text mining and preprocessing.
Quanteda: Advanced NLP toolkit with text processing and visualization features.
NLP: A comprehensive package offering tokenization, annotation, and more.
Computer Vision
OpenCV: Accessible in R via the opencv package, complements Torch and Keras for vision tasks.
Over half of data scientists use it.
R ranks 4th in programming language popularity (PYPL, March 2025). [Source]
It is great for visualizations with tools like ggplot2 and shiny.
R makes it easy to turn data into clear visuals.
R helps explain models. It's often used in healthcare, finance, and research, where understanding results matters more than just building the next big model.
Powerful statistical analysis tools
Excellent data visualization
Strong support for exploratory data analysis
Choose R over Python when statistical modeling and visualization are top priorities.
Java plays a quieter, more focused role in AI development. It has been a reliable choice for large, complex, enterprise-grade software for decades. In AI, it finds its place mostly in big organizations. Industries like banking, healthcare, and telecom often rely on Java to manage AI components because it fits well into their existing technology stacks.
There are two parts to most AI projects.
1. Training
This is the stage where models learn from large sets of data. It demands a lot of computing power and access to a wide range of tools and libraries. Most of these tools are built around Python because the ecosystem is more complete. That includes support for GPUs, data pipelines, and interactive tools.
Could training be done in Java? Yes, but you would lose access to most of what makes modern AI workflows fast and flexible. It would also take more time to set things up and maintain them.
2. Inference
This is where Java becomes more relevant. Inference means taking a trained model and using it to make predictions, process images, or respond to user input. Java fits well here, especially in systems that are already built with it.
Java is widely used in large software systems. When companies want to add AI features, they often do it using the same language.
Libraries like Deep Java Library (DJL) and TensorFlow Java make it easier to load and use pre-trained models.
Java is known for stability and speed. That makes it a good choice when the focus is on performance and reliability rather than experimenting with new models.
It's used when AI needs to be part of a larger software system that runs smoothly over time. Tools like Deeplearning4j allow Java to handle some deep learning tasks, making it possible to build AI models without switching to a different language or platform.
Java also benefits from big data tools like Apache Hadoop and Apache Spark, used for handling large volumes of information.
Manages large datasets and heavy workloads efficiently
Offers strong security for sensitive information
Well-supported with mature tools and libraries
Integrates smoothly with big data frameworks
Suitable for embedding AI in complex, existing software
Known for stability and reliability in production
Handles multithreading and parallel processing well, which can improve performance
Has a large developer community and long-term support
Java isn't typically the first choice for AI researchers or small projects, but it becomes important when AI solutions need to work reliably inside big, mission-critical systems. It's less about being the fastest or most flexible language and more about being a solid foundation for AI at scale.
Many popular ML libraries, like TensorFlow and PyTorch, have core components written in C++. It is a mature language for the backend part, whether it is an AI program or any other program. Though it is not a primary language for AI programs, it can be used in performance-critical areas.
And if you are going to build a program that is supposed to run on low-end devices, C++ can be a good bet. With this language, you can have fine-grained control over memory and system resources, as it allows direct control over memory and hardware.
C++ is valued in AI for its ability to deliver fast and efficient performance, especially where computing power or memory is limited. This makes it a solid choice for AI running on devices with restricted resources. You can use it when you are building embedded systems or edge devices.
Executes code very quickly
Lets programmers control memory use precisely
Provides low-level hardware access for optimization
Works well in embedded or edge environments
Ideal for AI that demands real-time responses or runs on specialized chips
C++ is less about ease of use and more about getting the best performance in situations where every millisecond or byte of memory counts. For AI applications that need to run fast and lean, C++ remains a strong option.
Julia combines speed with clear, math-friendly syntax. Its performance is near that of C++, but it feels simpler to use, often compared to Python in terms of readability. This balance has led to growing interest in Julia among AI researchers and scientists.
It handles calculations and data manipulation without slowing down. Its multiple dispatch is well praised by the developers' community, enabling devs to write flexible and reusable functions.
If you want to explore a fresh approach compared to traditional object-oriented designs, Julia is the answer for AI development.
Libraries like Flux and Knet provide tools for building neural networks and working with data efficiently.
Julia's flexibility is a strength; some developers find its approach to interfaces and code organization takes getting used to, especially if you come from languages with more rigid structures.
In short, Julia offers a fresh balance: it's straightforward enough to write quickly and clear enough to understand easily, yet it keeps performance tight for serious number crunching. This mix is why more people are turning to Julia for AI and scientific projects, and it's shaping up to be a solid tool for those looking to do more without slowing down.
Handles heavy numerical computing efficiently
Uses syntax that matches mathematical expressions closely
Easily connects with Python and C libraries for flexibility
Has an expanding community focused on AI and scientific tasks
While still gaining traction, Julia is becoming a popular choice for those who want both speed and clarity when working on AI projects, especially in research and scientific fields.
Scala blends functional and object-oriented programming, which helps when working on AI tasks that involve handling lots of data or running processes in parallel. It fits naturally with big data tools like Apache Spark, making it a good pick for AI projects that need to analyze or generate insights from large datasets.
Libraries such as Breeze and Spark MLlib provide support for building AI models, including generative ones, within the Scala environment. This makes Scala useful when AI needs to run alongside heavy data processing tasks.
Supports both functional and object-oriented styles
Integrates tightly with big data platforms like Spark
Handles concurrency well for better performance
Scales effectively for large, distributed datasets
Commonly used where AI overlaps with big data processing
Scala is not typically used for small AI projects but comes into its own in environments where AI and big data work together on a larger scale.
JavaScript is essential for AI that runs directly in web browsers. It allows AI models to be trained and used without needing special software, making AI accessible to anyone with a modern browser.
Libraries like TensorFlow.js let developers build and test AI models right in the browser, which is great for quick demos and interactive tools. This ease of use helps spread AI applications to a wide audience without a complex setup.
Works on all modern browsers without extra installs
Supports interactive AI experiences on the web
Has a large, active developer community
Speeds up prototyping and testing for web-based AI
JavaScript's role in AI shines where accessibility and ease of use are priorities, especially for creating web apps and demos that anyone can access instantly.
Lisp holds an important place in AI history as one of the first languages used for AI research. Its strength lies in symbolic processing, which makes it well-suited for AI tasks that involve reasoning, logic, and language manipulation.
Though less common today, modern versions of Lisp are still used in specialized AI projects, especially those experimenting with new ideas or working on complex symbolic AI problems.
Excels at symbolic computation and logic
Offers flexible syntax that can be adapted easily
Has a long history of use in AI research and development
Useful for quickly testing new AI concepts
Lisp remains relevant in areas where symbolic reasoning and language-based AI are key, even if it's not widely used for general AI development anymore.
Rust is gaining attention in AI development for its focus on performance without sacrificing safety. It avoids common issues like memory leaks and race conditions, which are especially important when building complex AI systems that need to run reliably.
While its AI ecosystem is still growing, libraries such as tch-rs (bindings for PyTorch) and burn offer practical tools for working with generative models. Rust's strong support for concurrency also makes it appealing for AI workloads that need to run in parallel or scale across threads safely.
Offers memory safety without garbage collection
Delivers performance close to C++
Helps prevent bugs common in multi-threaded code
Has emerging libraries for model training and inference
Useful for engineers building secure, scalable AI systems
Rust isn't yet a go-to AI language, but it's becoming a serious option for developers who want low-level control and safety, especially in performance-critical or production-grade AI projects.
Mojo is a recent entry in the programming world. It combines the familiarity of Python with the performance of low-level languages. It supports Python syntax and tooling. Though still early in development, Mojo is showing promise in tasks that require high-performance training and inference.
Built from scratch for AI and machine learning
Compatible with Python, easing the learning curve
Delivers low-level performance for heavy AI workloads
Drawing interest from early adopters in AI research
Mojo isn't mainstream yet, but it's being closely watched by developers looking for the next generation of AI-focused programming tools.
There's no single "best" language for AI, what works depends on your specific goals. If your project demands fast prototyping and a large ecosystem, Python is often the default. But if you're working with limited hardware, C++ or Rust might serve better. For statistical tasks or research-heavy models, R or Julia can be strong options. And for web-based AI tools, JavaScript makes deployment easier.
Also consider:
Team familiarity: Don't ignore the learning curve, choose what your team can work with efficiently.
Deployment target: Edge devices? Cloud? Browser? That changes your options.
Library support: Some languages have better tools for training, others for inference.
Long-term maintenance: Languages with strong typing or memory safety (like Rust or Java) may save debugging time later.
Instead of chasing trends, match the language to the problem you're solving. The right choice is usually the one that balances capability, compatibility, and developer speed.
As generative AI matures, the tools and languages powering it are shifting, too. Here are some trends influencing how developers choose programming languages for AI today:
These models handle text, images, and audio together, pushing beyond single-task systems. Languages like Python, Julia, and Mojo support this with strong numerical libraries and high flexibility.
Powers more interactive and capable AI systems
Needs deep library support and high-level abstraction
Deploying models on local devices improves speed and keeps data private. C++, Rust, and Mojo stand out due to their efficiency and control over hardware.
Reduces reliance on cloud processing
Favors lightweight, high-performance codebases
Tools built on JavaScript and Python are making AI accessible to non-developers. These languages offer integration ease and user interface support.
Brings AI development into more hands
Often used in startups, education, and MVPs
Projects increasingly use multiple languages to cover different needs. Python, Rust, and C++ are often mixed for flexibility and speed.
Encourages modular design
Lets teams balance productivity with performance
Not every language is built to handle the demands of generative AI. Some are faster. Others offer better tools. What sets a language apart comes down to a few key factors:
Does it offer ready-to-use tools for model building, training, and deployment?
Can it handle heavy computation without slowing down or crashing?
Are there enough developers, tutorials, and discussions to learn from or get unstuck?
How easily does it work with AI platforms, cloud APIs, and other tools in your stack?
Can new team members pick it up without weeks of onboarding?
These criteria guided our list of the top AI programming languages for 2025, not based on hype but on how well each language supports real-world generative AI development.
Yes, and not in small ways. AI is reshaping how software gets built, tested, and shipped. Traditional development isn't going away, but it's evolving to fit into an AI-augmented workflow. Here's how:
Tools like GitHub Copilot and other code-generation systems help devs move faster—filling in boilerplate, suggesting functions, even writing tests.
It's no longer just about knowing syntax. Developers are learning how to write prompts, curate datasets, and fine-tune models.
Software teams are adding steps for data prep, model integration, and continuous AI monitoring alongside their regular CI/CD flows.
Programming languages are adapting, too, getting better AI library support, improving cross-language compatibility, and making space for new development patterns shaped by generative models. AI isn't replacing developers. It's redefining the toolkit.
So, which one is the best? Python dominates, but it is not a one-size-fits-all solution. The right selection of programming languages depends on what you are going to build. Some of the areas are where R or Scala may excel, while Julia and Lisp can be better choices in other scenarios. Some of the programming languages are built only to solve particular issues that well-established languages lack.
For example, Python may not be the right choice for advanced statistical modeling or high-performance numerical computation. Languages like R, Scala, Julia, or Lisp can do a better job.
Overall, there's no one-size-fits-all for building AI software. You can choose the right one only after defining what you are going to build. Our advice is that when you are picking a programming language, popularity alone should not be the sole factor. When you think beyond popularity, hype, and trends, you will find the perfect language.
If you're planning an AI project but can't decide which technology suits your goals, don’t get lost in trends. We offer guidance grounded in your goals and provide generative AI development services tailored to what you’re building. Book a free consultation and start your AI journey with clarity, not guesswork.
Yes, many successful generative AI projects use multiple languages to leverage their specific strengths, such as Python for model development and C++ for deployment optimization.
Choose Python for excellent library support and community resources, while Julia is better for projects requiring mathematical precision and performance close to C++ with a more accessible syntax.
Strong fundamentals in data structures, algorithms, and statistics are more important than specific language expertise, as these skills transfer across languages and help with understanding model architecture.
C++ and Rust typically offer the best performance for deployed generative AI models, especially in resource-constrained environments, while Python remains dominant for development and prototyping.
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