Subquadratic launches with a $29M seed and debuts SubQ, an LLM that uses a subquadratic sparse attention architecture to achieve a 12M-token context window (Kyt Dotson/SiliconANGLE)

Techmeme ·

Subquadratic AI launches with a $29M seed and releases SubQ, a new LLM using subquadratic sparse attention to achieve a 12M-token context window—dramatically extending beyond current limits.

Categories: Model Releases, Money & Moves

Excerpt

<a href="https://siliconangle.com/2026/05/05/subquadratic-launches-29m-bring-12m-token-context-windows-ai/"><img align="RIGHT" border="0" hspace="4" src="http://www.techmeme.com/260505/i39.jpg" vspace="4" /></a> <p><a href="https://www.techmeme.com/260505/p39#a260505p39" title="Techmeme permalink"><img height="12" src="http://www.techmeme.com/img/pml.png" style="border: none; padding: 0; margin: 0;" width="11" /></a> Kyt Dotson / <a href="http://siliconangle.com/">SiliconANGLE</a>:<br /> <span style="font-size: 1.3em;"><b><a href="https://siliconangle.com/2026/05/05/subquadratic-launches-29m-bring-12m-token-context-windows-ai/">Subquadratic launches with a $29M seed and debuts SubQ, an LLM that uses a subquadratic sparse attention architecture to achieve a 12M-token context window</a></b></span>&nbsp; &mdash;&nbsp; Subquadratic, a company developing a novel generative artificial intelligence model, launched today with $29 million in seed funding.</p>