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Lightmatter's new computer chip could reduce AI energy use

Silicon Valley startup Lightmatter's Envise chip

Silicon Valley startup Lightmatter's Envise chip, which uses light rather than electrons to carry out computations.

 Lightmatter

SAN FRANCISCO � Silicon Valley startup Lightmatter revealed on Wednesday it had developed a new type of computer chip that could speed up artificial intelligence work and use less electricity in the process.

Valued at $4.4 billion after raising $850 million in venture capital, Lightmatter is one of a number of companies seeking to use beams of light, rather than electronic signals, to move data around more quickly between computers. Those connection speeds are critical for artificial intelligence because the software is so complex it must be spread over many computers.



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