Dossier
fusion
Coverage of fusion in the Nexus archive.
- OpenRouter's Fusion Promises Claude Fable-Level AI for Cheap—Right as Fable 5 Goes Dark
OpenRouter's Fusion compound-model API combines budget AI models to outperform GPT-5.5 and Claude Opus 4.8 in benchmark tests. The release coincides with Fable 5's deactivation.
- Helion, the Sam Altman-backed fusion startup, raises $465M to build a power plant for Microsoft
Helion, a fusion startup backed by Sam Altman, has raised $465 million to build a power plant for Microsoft. The company aims to complete the project by 2028 with the new funding.
- The world’s largest privately owned laser just turned on
Fusion startup Xcimer activated the world's largest privately owned laser. The event marks a significant milestone for the company in advancing laser technology.