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StepFunWeights not listed·16K context·— params

Step-2 16Kstepfun/step-2-16k

Step 2 16K is a historical StepFun model. The official migration guide lists its API retirement on July 8, 2026. This page is retained for reference; do not select step-2-16k for a new integration.

Availability and billing notes

Reviewed September 21, 2026 · check the linked provider documentation for later changes.

Retired API model. Check the official migration guide and current StepFun model catalog before replacing an existing integration.

Official source 1 →

Pricing across providers

No current verified API pricing is listed. See the official model documentation for availability and billing.

Capabilities

  • chat
  • reasoning
  • code

Languages: zh, en

Technical specs

Context
16K
Max output
4K
Parameters
—
Release
—
Training cutoff
—
License
—
Official documentation →

Similar models

Compare with

  • Step-2 16K vs DeepSeek V3.1
    Comparison planned — not yet published
  • Step-2 16K vs R1
    Comparison planned — not yet published
  • Step-2 16K vs DeepSeek V3
    Comparison planned — not yet published

Frequently asked

How much does Step-2 16K cost?+
No current verified API pricing is listed. This does not mean the model is free or that a hosted API is currently available. Check the official model documentation below.
Is Step-2 16K open-source?+
Downloadable weights are not listed in this directory for Step-2 16K. See the official documentation and availability notes for API, subscription or planned weight-release details.
What's the maximum context window for Step-2 16K?+
The model supports up to 16,384 tokens of context (input + output). Some hosted versions may impose a smaller limit — check the "Context" column in the pricing matrix for each provider.