Rigetti Computing — Superconducting Qubits · fobi

Rigetti Computing

Rigetti designs and manufactures superconducting quantum processors and operates a full-stack quantum computing platform. Rigetti went public via SPAC in 2022 and announced its 84-qubit Ankaa-3 system in 2024. The company partners with Nvidia on hybrid quantum-classical computing.

The company owns its entire fabrication stack, including an on-site fab in Fremont, giving it vertical integration rare among quantum startups.

rigetti.com Superconducting Qubits

United Statespublic · RGTI

At a glance

Total raised

$601.3M

last round ipo

Headcount

51-200

approximate · public range

Headquarters

Berkeley

United States

Founded

2013

13 years active

Status

Public

Ticker · RGTI

Latest valuation

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Date	Stage	Amount	Valuation	Lead investors
Mar 2, 2022	IPO	$458M	$1.5B	—
Jan 1, 2020	Series C	$79M	—

AI bull / bear

Bull case

Rigetti owns its fab. That vertical integration — rare among quantum startups — means it can iterate on chip designs in weeks, not months, and control cost and yield without relying on outside foundries. The Ankaa-3 system at 84 qubits is already producing real physics results: Rigetti simulated plasma wave dispersion with Lawrence Livermore and the University of Colorado, proving the processor can run meaningful scientific workloads, not just benchmarks. More importantly, external validation is accelerating. Quantum Machines hit 99.5% two-qubit gate fidelity on Rigetti's Novera QPU using third-party control hardware — a sign that the underlying qubit technology is competitive with anyone in superconducting. The Nvidia partnership opens a credible path to hybrid quantum-classical workflows, and being public gives Rigetti a currency advantage over private peers that are still burning cash in the lab. If error rates keep dropping, Ankaa-3 is the platform that moves quantum computing from science project to engineering tool.

Bear case

Rigetti is public, which means every quarter the market gets to price in the distance between today's hardware and a commercially viable quantum computer. That distance remains large. Ankaa-3 at 84 qubits is still orders of magnitude below the thousands of logical qubits needed for most practical applications. Competitors like IBM already have 1,000+ qubit roadmaps and deeper enterprise partnerships. Google and Microsoft are pursuing alternative qubit modalities that could leapfrog superconducting entirely. Meanwhile, Rigetti's SPAC merger loaded the company with public-company costs and scrutiny, but total funding history is undisclosed — a red flag that suggests the company is not transparent about its cash runway. The two-qubit gate fidelity milestone (99.5%) was achieved on Rigetti hardware by a partner using its own control stack, not Rigetti's full-stack platform. As a pure-play superconducting qubit company in a tightening capital environment, Rigetti risks getting squeezed between better-funded hyperscalers and faster-moving startups.

Generated by deepseek-v4-flash · June 2, 2026Refreshes quarterly · see disclosures

Rigetti Computing

At a glance

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Funding history

Stock performance

How they make money

Founder backgrounds

Chad Rigetti

AI bull / bear

In the news

Rigetti Simulates Plasma Wave Dispersion on Superconducting Ankaa-3 Processor Using Specialized Error Mitigation

Quantum Machines Achieves 99.5% Two-Qubit Gate Fidelity Operating Rigetti’s Novera QPU

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Leadership

Products

Ankaa-3 System

Novera QPU

Rigetti Quantum Cloud Services (QCS)

Open roles