Rigetti Computing

Rigetti just made Cepheus 1 108Q generally available, tripling its qubit count from the 36 qubit machine it shipped last year. It is built from twelve linked 9 qubit chiplets, and it is the first gate based computer with more than 100 qubits available on Amazon's quantum service. That proves the stitching together approach works, which is the single hardest problem in this field.

The new system hits 99.1% accuracy on its trickiest operations and runs them in about 60 billionths of a second, which the company says is roughly 1,000 to 10,000 times faster than rival designs. Rigetti expects to push that accuracy to 99.5% later this year. In a race where tiny errors pile up fast, being both quick and precise is what turns a lab toy into a tool.

Shipping better hardware has not yet turned into money. Revenue for full year 2025 fell 34%, from about 10.8 million dollars down to roughly 7.1 million. Meanwhile the company is valued near 5.5 billion dollars, which is more than 500 times what it actually sells in a year.

Rigetti says the moment quantum computers beat regular ones, the thing that would unlock real demand, is still about 3 years out. Its own accuracy target of 99.5% is a goal for later this year, not something it has hit. Buying today means paying a 5.5 billion dollar price for a payoff that is at least 36 months away and not guaranteed.