Ocelot by Amazon: status and timeline

Milestones

No announced next step

Ocelot unveiled27 Feb 2025Complete.
Nature paper published27 Feb 2025Complete.

Most important updates

AWS unveils Ocelot, its first quantum chip: 9 cat qubits, Nature paper shows 90% reduction in error-correction overhead27 Feb 2025

Current obstacles

Scaling to useful qubit countsOcelot has 9 qubits. Practical systems need thousands of logical qubits (millions of physical).
Improving logical qubit yieldCurrent error rates need many physical per logical qubit. Ratio must improve significantly.

Physics limits

Quantum decoherenceQuantum states degrade due to environmental noise. Better isolation and lower temps needed.
Error correction overheadEven cat qubits need extra physical qubits for correction. Perfect codes don't exist.

How it works

3 parts

Cat qubits

Schrödinger's cat qubits

Hollow tantalum structures on silicon containing microwave radiation. Suppress bit-flip errors through physics.

Error suppression

Physics-based error correction

Suppress bit-flip errors by design, reducing extra qubits needed for error correction codes.

Cryogenic cooling

Near absolute zero

Cooled near absolute zero to maintain coherence and minimize thermal noise.

Spec sheet

Spec	Ocelot
Total qubits on chip	9^R (reported)
Cat data qubits	5^R (reported)
Error-detection qubits	4^R (reported)
Error-correction overhead reduction	Up to 90%^R (reported)

^R reported by the company

Papers & demos

1 item

Feb 2025paper
Hardware-efficient quantum error correction using concatenated bosonic qubits (opens nature.com)Published in Nature; demonstrates cat-qubit architecture and error correction overhead reduction.

Update log

1 update

Thu 27 Feb 2025

Major: AWS unveils Ocelot, its first quantum chip: 9 cat qubits, Nature paper shows 90% reduction in error-correction overheadPaperResearch

About Amazon

The team behind Ocelot

Amazon

Prime Air drones, AWS silicon, cloud computing, robotics

Amazon operates AWS, the world's leading cloud platform with custom AI accelerators (Trainium, Inferentia), quantum chips and servers. Amazon Robotics runs the largest robot fleet deployed. Prime Air delivers packages by drone.

AWS leads enterprise cloud with 1M+ deployed robots. Prime Air delivers to 500 US cities, hundreds of thousands of packages in 2026.
Custom silicon: Trainium/Inferentia accelerators, Graviton ARM CPUs, cat-qubit chips. Project Rainier (500k Trainium2) trains Claude.
Pieter Abbeel leads frontier model work, due re:Invent 2026. Kiro agentic IDE inverts coding: specs are source, code is artifact.

amazon.com (opens amazon.com)Company profile →

Founded: 199432 yrs
Headquarters: United States
Status: Public
Listed: AMZN (opens google.com)NASDAQ
Valuation: $2.1Tmarket capOct 2026
Staff: ~1,570,000Sep 2026
Works in: AviationDelivery dronesAIRoboticsSpaceflightQuantumComputing
Coverage: 8 programs · 7 updateslatest 1 Sep 2026checked 10 Oct
Customers: Anthropic (opens anthropic.com)GXO Logistics (opens gxo.com)
Partners: Caltech (opens caltech.edu)
Suppliers: United Launch Alliance (opens ulalaunch.com)
People: Pieter Abbeel (opens en.wikipedia.org)AI Researcher, Frontier Model ResearchAndy Jassy (opens en.wikipedia.org)CEOChris Weber (opens linkedin.com)VP of Leo Business

Spec

Ocelot

Total qubits on chip

9^R (reported)

Cat data qubits

5^R (reported)

Error-detection qubits

4^R (reported)

Error-correction overhead reduction

Up to 90%^R (reported)