IBM: Quantum Computers Will Outperform Classical Systems in 2026

IBM has publicly stated that 2026 will mark the first time a quantum computer will be able to outperform a classical computer—the point at which a quantum computer can solve a problem better than all classical-only methods.

This is called "quantum advantage" and it's been the goalpost that's moved for years. IBM is now saying it will arrive this year.

What This Means

Quantum advantage isn't about raw speed. It's about fundamental capability—solving a problem that classical computers cannot solve at all, or would take longer than the age of the universe to solve.

Once that happens:

  1. Cryptography breaks (quantum computers can factor large primes instantly)
  2. Optimization explodes (pharmaceutical companies, logistics networks get superhuman planning)
  3. Defense changes (whoever has quantum first has asymmetric advantage)

The Realistic View

IBM's Peter Staar predicts 2026 will mark a shift in AI research priorities that favor the palpable. "Robotics and physical AI are definitely going to pick up," he said. While large language models remain dominant, Staar notes that the industry is hitting diminishing returns from scaling. "People are getting tired of scaling and are looking for new ideas," he explained. Staar sees a lot of interest for AI that can sense, act and learn in real environments; this is where the technical challenge will lie: this could be the next frontier for innovation.

Translation: quantum computing will have its moment, but it won't dominate 2026. That year belongs to physical AI and agentic systems. Quantum is the decade-long bet.

My take: Quantum advantage will be real but niche in 2026. Expect breakthroughs in molecular simulation and drug discovery. Mass cryptography breaks will come later, which is why governments are starting post-quantum cryptography migrations now.