Rigetti (RGTI) hit some hardware milestones and secured contracts with the Air Force, but they missed out on phase 2 of a DARPA benchmarking program. The main concern is that their 99.5% fidelity rate is still considered too error-prone for real scalability. IBM looks like the safer bet in the sector since they are funding their quantum research with cash from their legacy business. They are working on two chip lines, Nighthawk and Loon, aiming for a fully fault-tolerant computer by 2029. RGTI is high risk with cash burn, while IBM has the funding to sustain development.