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Seamlessly integrates into your existing workflows

Plugs into all industry-standard simulators — Spectre, HSPICE, XYCE, and more.

Optimize PDK provided models and circuits to run upto 10x faster.

Bit-level fidelity with existing tools, no approximations.

Blazing Fast SPICE Simulations at the Push of a Button

Reduce Fabrication Risks, Design Faster, Ship with Confidence

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About Us

Who We Are

Build4Sim Inc. was founded by a team of engineers and researchers with over a decade of experience in high-performance optimizations and toolchain design. We believe that specialized hardware design is the key to optimizing modern AI workloads and simulation times shouldn't be the bottleneck to designing the next generation silicon. Our mission is to eliminate long wait times and enable chip designers to iterate faster while reducing failure risks

Meet Our Founders

Ajay Brahmakshatriya

Ajay Brahmakshatriya

CEO and Co-Founder

Ajay is a seasoned compiler designer and performance engineer with a PhD in designing high-performance languages from MIT. He drives the development of the core of the product and has a passion for pushing hardware to its limits.

Saman Amarasinghe

Saman Amarasinghe

Co-Founder, Professor of Computer Science, MIT

Saman has over 3 decades of experience in building next generation programming languages that keep up with the demands of modern computational workloads.

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