A faster theoretical route to multiplying matrices
OpenAI research collection · 3 manuscripts · Source checked 2026-10-19
The idea in plain language
Matrices are grids of numbers used throughout computing. These papers claim improved upper bounds on the number of arithmetic operations needed to multiply large matrices, including an exponent of at most 2.25 over the complex numbers.
Why it matters
Matrix multiplication is central to AI, but an asymptotically faster algorithm does not automatically accelerate today's GPUs. Constants, memory use and implementation still matter.
Read the technical source claim
Proves ω\le9/4 over ℂ, giving O_ε(n^{9/4+ε}) arithmetic operations for square matrix multiplication. In characteristic zero, some inner dimension n^(a) with a > 0.465 permits n^{2+o(1)} rectangular multiplication. Further square bounds give ω < 2.258 outside finitely many positive characteristics and ω < 2.371054886006746 over every fixed field.
Read the manuscripts
Short excerpts below come from OpenAI's abstracts. The full abstract and original PDF preserve the paper's precise scope.
MANUSCRIPT 01
An Upper Bound of 9/4 for the Matrix Multiplication Exponent
We prove that the exponent of matrix multiplication over the complex numbers is at most 9/4.
This PDF is listed in OpenAI's formalization catalogue. See the scope and dependencies before interpreting coverage.
Complex Matrix Multiplication Below 2.258 and Rectangular Bounds
, secondary writeup Over every field of characteristic zero, we prove that the square matrix-multiplication exponent satisfies ω < 2.258, the dual exponent satisfies α > 0.465, and ω(1,0.709,1)< 2.092. The strict square and k = 0.709 rectangular bounds also hold over every field except possibly in one finite set of positive…
Full source abstract
, secondary writeup Over every field of characteristic zero, we prove that the square matrix-multiplication exponent satisfies ω < 2.258, the dual exponent satisfies α > 0.465, and ω(1,0.709,1)< 2.092. The strict square and k = 0.709 rectangular bounds also hold over every field except possibly in one finite set of positive characteristics, in the arithmetic-operation model.
This PDF is listed in OpenAI's formalization catalogue. See the scope and dependencies before interpreting coverage.
Staggered extraction for exact matrix multiplication over every field
We prove that the arithmetic exponent of square matrix multiplication over every fixed field satisfies ω < 2.371054886006746. This includes every positive characteristic.
This PDF is listed in OpenAI's formalization catalogue. See the scope and dependencies before interpreting coverage.
New mathematical reasoning could help AI tackle harder scientific and computational problems. How reliably these skills transfer beyond mathematics will determine how much they contribute to general intelligence.