INT21 vs JobTrue

We are building self-improving AI systems for the software beneath modern AI. Our first product generates and optimizes low-level GPU software, then proves its work with...

One place for your entire job search. Know your fit before you apply, keep your resume in one master document, track every opportunity. Apply less. Land more.

About INT21

We are building self-improving AI systems for the software beneath modern AI. Our first product generates and optimizes low-level GPU software, then proves its work with tests and benchmarks. Today, we are launching INT21: the first company to achieve self-improving AI agent swarms, applied to AI infrastructure. That software has an outsized effect on speed and cost. The first four implementations produced by PTX Kernel Factory are open source today. The product is also entering beta, with early access available at int21.ai.

About JobTrue

One place for your entire job search. Know your fit before you apply, keep your resume in one master document, track every opportunity. Apply less. Land more. Your data is never shared or used to train AI models. Most job seekers are juggling a spreadsheet, five browser tabs, and a folder of resume drafts, and still guessing whether a role is actually worth applying to. JobTrue gives you one place to manage everything, real AI feedback to cut through the noise, and a resume that's always ready.