INT21 vs Prizm

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...

Generate video, images, and voice from the best models, Veo, Kling, Nano Banana, ElevenLabs and more, on a simple prepaid balance. No subscriptions.

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 Prizm

Generate video, images, and voice from the best models, Veo, Kling, Nano Banana, ElevenLabs and more, on a simple prepaid balance. No subscriptions. Prepaid, pay as you go Failed jobs auto-refunded Works inside Claude. Every generation shows its price before you run it. Connect your key to Claude and let it pick the best model for your prompt, or use the on-site studio directly. Connect your Prizm key once and describe what you want in plain language.