congrats to the StepFun team on releasing Step 5 Preview open weights today we’re excited to be a launch partner and to support another Step…

congrats to the StepFun team on releasing Step 5 Preview open weights today we’re excited to be a launch partner and to support another StepFun release as they bring Step 5 Preview to developers Step 5 Preview is now open weights. BF16 and FP8 weights are live on Hugging Face and ModelScope, together with our technical blog. • Sparse MoE: 600B total, 27B active per token • 1M-token context window • Native text and vision input • Built for long-horizon agentic work: codin…

Source: Together AI (X) | 2026-10-16