Spirit AI’s Fast-Raise Cycle Is Becoming a Stack Race - 2026-06-05 - Article - A new 1.5B RMB Series A+ caps a three-month sprint of funding, model releases, compute partnerships, and industrial deployment deals.
Spirit AI releases Spirit-v1.5 fine-tuning code - 2026-04-01 - Research Publication - Spirit AI updated the Spirit-v1.5 repository in April 2026 with fine-tuning code, separating the training release from the January initial model and benchmark release. The repository documents training requirements… - source: github.com
Spirit AI open-sources Spirit-v1.5 robotic foundation model - 2026-01-11 - Research Publication - Spirit AI released Spirit-v1.5 as an official VLA robotic foundation model implementation with model architecture, inference wrapper, RoboChallenge integration and model checkpoints. The repository says Spirit-v1.5 ranked… - source: github.com
Moz1 arm paper presents analytical inverse kinematics for Spirit AI's 7-DOF robot arm - 2025-11-28 - Research Publication - The Moz1 inverse-kinematics paper presents a closed-form analytical solution for the seven-DOF Moz1 robot arm with wrist offsets. The author reports full self-motion support, singularity handling, and all 16 solutions per… - source: arxiv.org