StepFun (@StepFun_ai)

Introducing Step Code v0.1.0. Swift execution. High token efficiency. Long-horizon reliability. Now open source under the MIT License. Step Code handles the full development loop—from reading and editing code to running tests and shipping—from one CLI. - 80.9% on Terminal-Bench 2.1 in evaluation...

⚡️ Step 3.5 Flash is coming: Fast Enough to Think. Reliable Enough to Act！ We’re dropping our most capable open-source foundation model yet. Frontier reasoning meets extreme efficiency. It leverages a sparse Mixture of Experts (MoE) architecture, 196B total → 11B active. Key Capabilities: ✅Reason...