StepFun Step-2
Released
2025-10-15
Last refreshed
2026-06-29
Status
Researched 133d ago
ProprietaryCommercial use: conditionalLong context
StepFun Step-2 is a released long context model with 128k context; evaluate it while provider pricing coverage matures.
StepFun releases · 6 in the last 12 months · this family litChangelog →
Specifications
- Family
- Step
- Released
- 2025-10-15
- Context
- 128k
- Parameters
- 1T (MoE)*
- Openness
- Proprietary
- License
- ProprietaryCommercial use: conditional
- Weights
- Not released
- Code
- Unknown
Pricing
No tracked provider token pricing is available yet.
About
StepFun Step-2 is StepFun's Step model. It offers a 128K-token context window.
Provider price ladder
No tracked provider token pricing is available for this model yet.
Capabilities
No model capability flags are currently sourced.
Benchmark peer barsfor Long context
No task-mapped benchmark peers are available for this model yet.
Migration checks
No linked migration route is available for this model yet.
Compare StepFun Step-2 with other models
Comparison and alternatives
Browse all comparisons →StepFun Step-2 vs GPT-5.3-Codex-SparkStepFun Step-2 vs DeepSeek V3StepFun Step-2 vs Claude Opus 4.6StepFun Step-2 vs GPT-5.4StepFun Step-2 vs Claude Sonnet 4.6StepFun Step-2 vs Claude Opus 4.7StepFun Step-2 vs GPT-5.3-CodexStepFun Step-2 vs GPT-5.4 ProStepFun Step-2 vs Claude Sonnet 4.5StepFun Step-2 vs GPT-5.4-CyberStepFun Step-2 vs Claude Opus 4.5StepFun Step-2 vs Claude Haiku 4.5StepFun Step-2 vs Kimi K2.5