Artificial Intelligence Companies in San Francisco, United States

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OpenAI

San Francisco, United States

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The company behind ChatGPT and the OpenAI API. OpenAI builds general-purpose AI models, and the platform that lets other software build on them.

Cardboard is an agentic video editor. You give it your raw footage and say what you want, and it returns a first cut you can work from.

Polymath builds the simulated environments AI agents train in. It is aimed at the slowest part of teaching an agent to work: producing the worlds it practises in.

Silmaril builds runtime security for AI systems, aimed at prompt injection: the attack where the instructions come in through the data an agent was asked to read.

Sazabi is an observability platform built around AI. It reads the logs, works out why production broke, and offers the fix.

Uno Wallet is a mobile wallet that chooses which of your cards to pay with, so the rewards are collected without you doing the arithmetic at the till.

General Legal is an AI-native law firm handling commercial contracting for startups. It is a firm rather than a tool sold to one.