Miri: A GPU-First Programming Language for the Generative AI Era

Miri is a modern programming language designed specifically for the generative AI era. Its core positioning is GPU-first and statically typed, balancing high performance and security. It supports the agent engineering paradigm and is suitable for scenarios such as AI/ML and system software.

With the rapid development of generative artificial intelligence, traditional programming languages face challenges: they need to fully utilize the performance of modern hardware (especially GPUs) while maintaining code security and maintainability. Miri was born in this context as a GPU-first, statically typed compiled language to address these pain points.

Miri takes "agent engineering" as its core concept: humans define intentions and high-level designs, while AI is responsible for filling in safe, verifiable, and high-performance concrete implementations. Core features include: a comprehensive type system (basic types, composite types like struct/enum/tuple, Option type to solve null safety); object-oriented support (classes, inheritance, abstract classes); generic programming (monomorphization for zero-cost abstraction); closure and trait system (supporting polymorphism and dynamic dispatch).

Miri supports multi-file project organization: use local.* to reference files within the project, use system.* to reference the standard library; provides selective import (e.g., use system.io.{println}), module aliases to avoid naming conflicts; cross-module visibility control (public/private/protected) to ensure encapsulation; detects circular dependencies to maintain healthy module dependency relationships.

Miri's compilation process: source code → lexical analysis → syntax analysis → AST → type checking → intermediate representation (MIR) → optimization → code generation (Cranelift backend) → executable file. Memory management uses container-level reference counting, automatic copy optimization for small types, and supports drop specialization for custom resource release; future plans include introducing an LLVM backend to support deep optimization for production environments.

Miri is currently in version Alpha4, with new features such as a complete multi-file module system and cross-module visibility control, enabling it to build medium and large-scale projects. Future priorities: implement GPU code generation (core goal), improve closure reference capture semantics, and launch a complete memory safety mechanism (Perceus+).

Miri is suitable for scenarios: AI/ML applications requiring high-performance computing, system software with strict security requirements, and modern projects with AI-assisted development. The static type system catches errors at compile time, and the agent engineering concept supports AI-assisted programming, providing an experimental field for exploring the next generation of programming paradigms.

Miri redefines the human-machine collaborative programming model in the generative AI era. Through its powerful type system, modern abstraction mechanisms, and agent engineering design, it provides new possibilities for software development. With the improvement of GPU code generation and memory safety mechanisms, it is expected to become an important choice for high-performance and high-security development.