Jim Keller

Jim Keller

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CEO of Tenstorrent; cofounder of Atomic Semi; veteran CPU/GPU architect. Discusses AI accelerators, chip design, and the semiconductor industry.

Intel's RISCified X86-64 Beats AI Accelerators
SocialApr 19, 2026

Intel's RISCified X86-64 Beats AI Accelerators

Intel won by RISCifying their CISC - still amazed how well x86-64 worked out LPUs is a subset of AI, an accelerator, it's not the RISC @tenstorrent , Trainium, Google TPU are closer. Clean Tensor processor is step one. Then generality, memory...

By Jim Keller
TT‑Lang: Python DSL for Tenstorrent’s High‑performance Kernels
SocialApr 18, 2026

TT‑Lang: Python DSL for Tenstorrent’s High‑performance Kernels

TT-Lang from Tenstorrent from Groq? It’s a Python-based DSL that lets you write high-performance custom kernels and fused ops directly on Tensix cores, Blackhole, etc.. Think “Triton but made for Tenstorrent hardware.” V 1.0 next week

By Jim Keller
Networked AI Shows Small Cables Power Big Systems
SocialApr 16, 2026

Networked AI Shows Small Cables Power Big Systems

The Network always wins. (in big systems) Hook up small things with cheap cables. Distributed software is hard, needs to really work. Very cool how this is working out @tenstorrent Networked AI

By Jim Keller
Each New Accelerator Builds on the Previous
SocialApr 11, 2026

Each New Accelerator Builds on the Previous

The accelerator accelerator accelerator CPUs are the OG GPUs accelerate CPUs TPUs accelerate GPUs (Tensor cores) LPUs accelerate TPUs Maybe something simpler could work

By Jim Keller
Accelerator Mismatch Turns Datacenters Into
SocialApr 9, 2026

Accelerator Mismatch Turns Datacenters Into

Historically this doesn’t work In chips we call it dead silicon Predicting dead datacenter Ratioing accelerators to the main computer is fragile Models change, size changes and you have a brick Possibly $$$

By Jim Keller