Step-2
Step-2 is worth evaluating for rag, agents, and long context when its provider route and context window match the workload.
Use it for
- Teams evaluating rag, agents, and long context
- Workloads that can use a 256k context window
- Buyers comparing 1 tracked provider route
Do not use it for
- Workloads where another current model has stronger sourced task evidence
- Family
- Step
- Released
- 2024-09-01
- Context
- 256k
- Parameters
- 1T (MoE)*
- Architecture
- Mixture of Experts
- Specialization
- general
- Openness
- Proprietary
- License
- ProprietaryCommercial use: conditional
- Weights
- Not released
- Code
- Unknown
- Training
- Pretrained
Cheapest of 1 route · StepFun
About
Step-2 is StepFun's Step model with multimodal text and image input. It offers a 256K-token context window.
Step-2 is a proprietary model in the Step family. The structured metadata tracks a 256k-token context window, multimodal input, and function calling. This page tracks provider routes through StepFun. No headline benchmark score is tracked for Step-2 yet.
Top use-case fit: coding, agents, and build tasks
RAG
Included by capability and metadata signals in the decision map.
Agents
Included by capability and metadata signals in the decision map.
Long context
Included by capability and metadata signals in the decision map.
Provider price ladder
Compare API pricing across 1 providers for input and output tokens, batch, and cached reads when available.
| Provider | Input / 1M | Output / 1M | Route |
|---|---|---|---|
| StepFun | - | - | ServerlessPartial |
Capabilities
Benchmark peer barsfor RAG
No task-mapped benchmark peers are available for this model yet.
Migration checks
No linked migration route is available for this model yet.
Frequently asked questions
What is the context window of Step-2?
Step-2 has a context window of 256k tokens.
When was Step-2 released?
Step-2 was released on 2024-09-01.
Which providers offer Step-2?
Step-2 is available from 1 provider: StepFun.
Cheapest of 1 route · StepFun