✓ Availablesync
StepFun: Step 5 Preview
stepfun/step-5-previewchatvisionreasoningstructured outputfunction calling
1,000,000 context tokens
$1.00 / $2.70 per 1M tokensSStepfun / Model Developer
Stepfun AI Models
on SandBase
Stepfun language models on SandBase: compare pricing and call them with one API key.
Choose the Stepfun model capability that fits your next task.
Language
1model & capability records
1 / 0 / 0 / 0language · image · video · audio
1 Sync0 async records
Catalog snapshot · Oct 10, 2026 · Task variants, not independent foundation models.
Choose a Stepfun Model
Recommendations are task-oriented starting points, not performance rankings. Confirm live pricing and schema.
EXPLORE THE CATALOG
Stepfun Models & Capabilities
Model IDs, task variants, and pricing units.
All in one place.
1 model & capability recordsCatalog snapshot · Oct 10, 2026
Token prices are per million input/output tokens; request prices are base prices. Context is shown only when meaningful. Confirm pricing, availability, and request fields on the live model page.
Gemini
Language, multimodal understanding, reasoning, and tool use.
Use Stepfun Models in an Agent Workflow
Keep your model selection separate from the Agent. Check tool support and schema compatibility when swapping models.