Cloud launch works, roadmap trust lags
- The 108-qubit Cepheus-1-108Q system is now generally available through Rigetti QCS, AWS, Azure, and qBraid.
- The same system is running at 99.1% median two-qubit gate fidelity, below the prior 99.5% target for this generation.
- Q1 2026 revenue was $4.4 million, up from $1.472 million a year earlier, mainly from higher Novera system sales.
- Cash and investments were about $569 million at March 31, 2026, but the company still had an operating loss.
- The stock prices in a lot of future success, while the company itself says it has missed and changed roadmap milestones before.
A real launch, with a fidelity gap
Rigetti just cleared an important product step. Its 108-qubit Cepheus-1-108Q machine is live on its own cloud service and through major partners, including AWS, Microsoft Azure, and qBraid. For a small quantum company, that is a real engineering and distribution win.
The catch is quality. The system is performing at 99.1% median two-qubit gate fidelity, which means its key two-qubit operations are right about 99.1% accurate in internal testing. That is below the prior 99.5% target for this generation. In quantum computing, small error gaps matter because errors can multiply fast as systems get bigger.
The bull case is that Rigetti can sell hardware now while the larger quantum market develops. Novera system sales helped Q1 2026 revenue nearly triple from a year earlier. The balance sheet is also much stronger after the 2025 financing, giving the company time to work on its technical roadmap.
The bear case is that investors are paying for future breakthroughs before they are proven. Rigetti says it has missed public milestones before and plans to update its roadmap later in 2026. The next proof points are simple to watch: the updated roadmap, the 150+ qubit system, fidelity results, DARPA Phase B status, and more system orders.
Hardware today, cloud later
Rigetti is full-stack. It designs chips, makes them at its Fab-1 facility, builds quantum processing units, and offers cloud access through Rigetti Quantum Cloud Services. A quantum processing unit, or QPU, is the chip that runs quantum calculations.
Money comes from three places: cloud access to quantum computers, direct hardware sales, and development contracts with governments, labs, and research partners. The filing says historical revenue has mostly come from development contracts, while the long-term plan is to grow QPU, full system, and QCaaS revenue.
Recent growth came mainly from hardware. The Q1 2026 10-Q says revenue rose by $2.9 million from the prior year period, mainly because of higher sales of 9-qubit Novera systems and related products. That is good evidence of demand, but it also means revenue can jump or fall based on a few orders.
The model breaks if the machines do not scale with good enough fidelity. It also breaks if customers keep treating quantum computers as research tools instead of must-have systems. The cash pile buys time, but it does not remove the need for real product progress.
The machines and the stack
Cepheus-1-108Q
This is Rigetti's highest qubit-count system to date. It is generally available through Rigetti QCS, AWS Braket, Microsoft Azure Quantum, and qBraid, but its 99.1% median two-qubit fidelity missed the prior 99.5% target.
Novera 9-qubit QPUs
Novera is the smaller on-premise system sold to universities, labs, governments, and research groups. Q1 2026 revenue growth was mainly tied to higher sales of these systems and related products.
Cepheus-1-36Q
The 36-qubit system helped validate Rigetti's modular chiplet plan in 2025. Management said it achieved 99.6% median two-qubit gate fidelity on this system in January 2026.
QCS, Forest, and pyQuil
This is the software layer that lets users run quantum programs on Rigetti hardware. It matters because cloud access is the cleaner, higher-scale revenue idea, even though it is still early.
Fab-1 and chiplet architecture
Rigetti makes its own superconducting quantum chips and links smaller chiplets together to scale. This could be a key advantage, but it also makes the roadmap hard to execute.
Large on-premise systems
Rigetti has announced larger system orders, including an $8.4 million order from India's C-DAC for a 108-qubit on-premise quantum computer. These deals can boost revenue, but they are lumpy.
One reported business
Rigetti does not report formal product segments. The structured mix below reflects the Q1 2026 filing presentation: one operating business, with revenue streams discussed qualitatively rather than split by percentage.
What could break
Roadmap miss
High impact · High oddsRigetti's Q1 2026 filing says the company has failed to meet public milestones before and has changed its technology roadmap before. The current 108-qubit system is below the prior fidelity goal for that generation. If the 2026 roadmap update lowers goals or delays them, trust could fall.
Fidelity scaling problem
High impact · Medium oddsQuantum computers need very low error rates to become useful. Rigetti's 108-qubit system is at 99.1% median two-qubit gate fidelity, while the public roadmap has aimed for 99.7% on a 150+ qubit system by the end of 2026 and 99.8% on a 1,000+ qubit system by the end of 2027. Missing those steps would call the scaling plan into question.
Lumpy order book
Medium impact · High oddsRevenue is still small and can move a lot when one system ships or one contract milestone is met. Q1 2026 revenue growth was mainly due to higher Novera system sales, not a broad recurring revenue base. A quiet quarter for hardware orders could make growth look weak fast.
Government funding gap
Medium impact · Medium oddsGovernment and research contracts have been an important revenue source. Rigetti was not selected for the initial Phase B group in DARPA's Quantum Benchmarking Initiative, though management said it still expects a path in if milestones are met. Failure to enter Phase B would remove a useful outside vote of confidence.
Price outruns proof
High impact · Medium oddsRigetti has a large cash cushion, but it remains pre-profit and is still spending heavily on research. The stock can trade on excitement about quantum computing before revenue and product performance catch up. If investors demand nearer-term profits, the shares could re-rate sharply.
In one breath
What does Rigetti Computing actually do?
Rigetti builds superconducting quantum computers and the chips that power them. It sells QPUs and full systems, and it also lets customers use its computers through the cloud.
Why does two-qubit fidelity matter for RGTI?
Two-qubit gates are core operations inside a quantum computer. If their error rate is too high, bigger machines can become noisy and less useful even if they have more qubits.
Is Rigetti profitable?
No on an operating basis. The company reported Q1 2026 net income because of fair-value accounting gains tied to warrants, but it still had an operating loss.
What are the next big RGTI catalysts?
The main catalysts are the 2026 roadmap update, 150+ qubit system metrics, possible DARPA Phase B acceptance, and more on-premise system sales. Fidelity will likely matter as much as qubit count.