Highest fusion target gain
The current highest fusion target gain record is 4.13 x, held by National Ignition Facility, set on April 7, 2025. Last checked October 14, 2026.
4.13
x
National Ignition Facility
- Holder
- National Ignition Facility
- Record
- 4.13 x
- Exact figure
- Gain of 4.13
- Location
- National Ignition Facility, Livermore, California, United States
- Date set
- April 7, 2025
- Recognized by
- Lawrence Livermore National Laboratory (National Ignition Facility)
- Last checked
- October 14, 2026
Sources
- lmf.llnl.gov Achieving fusion ignition
- annual.llnl.gov Fy2025annual
- lmf.llnl.gov Target breakthrough enabled fusion record nif
- schott.com Schott laser glass powers another historic fusion milestone
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