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Alice & Bob

Alice & Bob · #3 most active of 17 in Quantum

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Cat-qubit approach to hardware-level error protection.

Current version

Boson 4

Entry cost

Cloud + partnerships

Changes / 30d

0

Capabilities

  • Cat qubits
  • Bit-flip protection
  • Roadmap to 100 logical

Pricing

Cloud + partnerships

Entry price over time

Not enough pricing history yet — we start charting from the second observation.

Geek mode

Models under the hood

  • cat qubit

    disclosed

Context window

—

Public API

no

Multi-model routing

no

Stack signals

  • Google Cloud
  • Own fab

Shared model stack

Other tracked products running on the same foundation models — a quick read on how much of the catalog moves when one of these models changes.

green disclosed · amber inferred · grey unknown

Reported scale

Reference data. Each figure is whatever the source actually said — weekly users, downloads, revenue run-rate — with its own definition and date. These are not comparable between tools and are never used to rank anything.

No public usage figure on record for this product.

Also in Quantum

All Quantum
IBM Quantum Platform

IBM

1

Cloud access to Heron and Nighthawk QPUs

Version
Heron r2 / Nighthawk
Cost
from $96/mo
Model
Heron r2 QPU
Quantinuum Helios

Quantinuum

1

Trapped-ion QCCD systems

Version
Helios
Cost
Enterprise contract / credits
Model
Helios trapped-ion QPU
Amazon Braket

AWS

Managed multi-vendor quantum cloud

Version
GA
Cost
Free simulator tier, per-task hardware pricing
Model
IonQ / IQM / Rigetti / QuEra
Atom Computing

Atom Computing

Neutral-atom systems with 1,000+ qubit arrays.

Version
2025
Cost
Partnership-based
Model
neutral atom
Azure Quantum

Microsoft

Quantum cloud plus resource estimation

Version
GA
Cost
Free credits then per-hardware pricing
Model
Quantinuum / IonQ / Pasqal
CUDA-Q

NVIDIA

Hybrid quantum-classical programming platform.

Version
0.x
Cost
Free
Model
simulators + partner QPUs

Change history

No changes recorded yet.