secwatch.observer — SEC 8-K summary
======================================

Issuer:     Rigetti Computing, Inc. (RGTI)
CIK:        0001838359
Form:       8-K
Filed at:   2026-01-09T23:59:59+00:00
Accession:  0001104659-26-002328
Event type: other_material
Sentiment:  negative
Materiality: 0.60
Item codes: 7.01, 8.01, 9.01
LLM model:  deepseek-v4-flash:cloud@v2

Rigetti delays 108-qubit Cepheus-1-108Q general availability to end of Q1 2026
------------------------------------------------------------------------------

- Cepheus-1-108Q now expected to reach general availability around end of Q1 2026, previously earlier timeline.
- Median two-qubit gate fidelity achieved: 99% on 108-qubit, 99.7% on 9-qubit, 99.6% on 36-qubit systems.
- CEO cites complexities with tunable couplers; company running another chip iteration to optimize fidelity.
- System uses twelve 9-qubit chiplets and will be Rigetti's highest qubit count modular system.

Source:
  EDGAR index:    https://www.sec.gov/Archives/edgar/data/1838359/000110465926002328/0001104659-26-002328-index.htm
  Primary doc:    https://www.sec.gov/Archives/edgar/data/1838359/000110465926002328/tm262713d1_8k.htm
  HTML page:      https://secwatch.observer/filing/0001104659-26-002328

License: Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer