Particle-1
Particle launched Particle-1, a model post-trained from DeepSeek V4.1 Flash and initially focused on software engineering. Particle says its training approach reduces token use while keeping task success within the base model’s reported confidence intervals on evaluated tasks.
For buildersCompare it with your current coding model on a small, repeatable software task, tracking both completion quality and token use rather than treating efficiency claims as a quality guarantee.