AI inference accelerator chips and system software for large language models
Fractile designs custom silicon and systems software purpose-built for AI inference at scale. The stack reflects a full-stack hardware play: SystemVerilog, MLIR, PyTorch, vLLM, plus low-level tools (Cadence Innovus, Synopsys ICC2, Calibre) for chip design and verification. The company is actively adopting Rust and SystemC while hiring heavily in engineering (senior-weighted, UK and Taiwan), and their project list centers on pre-silicon modeling, RTL specification, Linux kernel drivers, and data-center deployment—indicating they are moving from design into manufacturing and production scaling.
Fractile, founded in 2022 and based in London, develops custom silicon and software to improve inference speed and cost for large language models. The company addresses a hardware gap: while existing processors excel at training AI models, inference—the repeated inference phase that dominates production workloads—remains bottlenecked by memory-to-computation bandwidth. Fractile's architecture fuses computation with memory and spans the entire stack from chip design through Linux kernel drivers and deployment orchestration. The product targets data-center operators and cloud providers running frontier models at scale. Operating as a 51–200 person privately held company, Fractile is in active scaling mode, with manufacturing partnerships and yield ramp as primary operational challenges.
Fractile uses SystemVerilog, Python, and C++ for core development; Cadence Innovus and Synopsys ICC2 for chip design; Verilator and Cocotb for simulation; PyTorch, vLLM, and SGLang for AI workload modeling; and Kubernetes, Docker, and Linux Kernel for deployment and driver software.
Fractile is developing AI accelerator chips, RTL specifications, pre-silicon modeling tools, Linux kernel drivers in Rust, runtime software stacks, and deploying accelerators into data centers. Current focus includes manufacturing scale, yield ramp, and bringing inference workloads (vLLM, SGLang) to production hardware.
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Fractile's technology stack, projects, and hiring signals are inferred from public hiring and company data — career pages, public listings, and company web presence — then clustered and de-duplicated. Figures are estimates that refresh over time. Read our full methodology →
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