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antirez (Salvatore Sanfilippo)

Creator of Redis. Italian programmer known for writing about data structures and system design.

https://antirez.com

Articles

A new era for software testing

Automatic programming dramatically speeds up writing software in certain use cases and in the right hands. In my experience the output does not reach the structural quality and economy of complexity o

Distributing LLM inference in DwarfStar

High end NVIDIA cards, and the server and power needed to run them, cost a lot of money, especially if you plan to reach enough VRAM to run massive models. The alternative, so far, has been Apple hard

Alternatives for the EDIT tool of LLM agents

EDIT: of course this was already done in the past! I had little doubts but people just confirmed me about it on Twitter :) But, keep reading: the CRC32 compromise at the end is an interesting tradeoff

A few words on DS4

I didn’t expect DwarfStar 4 to become so popular so fast. It is clear that there was a need for single-model integration focused local AI experience, and that a few things happened together: the relea

AI cybersecurity is not proof of work

The proof of work is the wrong analogy: finding hash collisions, while exponentially harder with N, is guaranteed to find, with enough work, some S so that H(S) satisfies N, so an asymmetry of resourc

GNU and the AI reimplementations

Those who cannot remember the past are condemned to repeat it. A sentence that I never really liked, and what is happening with AI, about software projects reimplementations, shows all the limits of s

Redis patterns for coding

Here LLM and coding agents can find: 1. Exhaustive documentation about Redis commands and data types. 2. Patterns commonly used. 3. Configuration hints. 4. Algorithms that can be mounted using Redis

Automatic programming

In my YouTube channel, for some time now I started to refer to the process of writing software using AI assistance (soon to become just "the process of writing software", I believe) with the term "Aut

Don't fall into the anti-AI hype

AI will fundamentally change programming despite personal preferences for traditional coding or concerns about economic impacts.

Reflections on AI at the end of 2025

AI researchers now accept LLMs aren't just "stochastic parrots." Chain-of-thought reasoning improves outputs through internal search and RL.

Scaling HNSWs

Redis developer shares advanced insights on optimizing HNSW vector search for low-latency performance after a year of implementation work.

AI is different

AI systems have rapidly achieved abilities once thought impossible, like understanding language and finding code bugs, with future progress uncertain but likely to continue.