MODEL PROFILE

Step-1o Vision model profile: context, pricing, provider, and next actions

StepFun's Step Vision line is currently tracked for Text + image -> text work. It is better used first for model judgment and route selection. Current context 128K, input $0.45, output $1.6. The next natural step is to clarify the route and workflow fit before adding procurement or key-check work.

China model routeStep VisionText + image -> text

Step-1o Vision

StepFun's Step Vision line is currently tracked for Text + image -> text work. It is better used first for model judgment and route selection.

Alternatives

Provider

StepFun

Start with the supply line behind the model before you move into deeper buying or key work.

Context window

128K

Context length changes whether the model fits short tasks, long documents, or knowledge workflows.

Input price

$0.45

Input price usually matters more for high-volume calling and batch workloads.

Output price

$1.6

Output price matters more for writing-heavy, support, and long-answer workflows.

MODEL JUDGMENT

Step-1o Vision should not be treated as a brand-name page first. It should be placed back into the real model layer: it comes from StepFun, sits on the China model route, and belongs to the Step Vision family.

This model line is best judged through four inputs: modality Text + image -> text, context 128K, prompt cost $0.45, and completion cost $1.6. The real question is whether those four signals support the workflow together.

If the upstream route is still catalog-only, the value of this page is to connect model, provider, and workflow before you chase a hot model blindly.

QUICK CHECKS

Ask first whether you truly need a 128K context window or are just reacting to the phrase “long context.”

Then ask whether your workload cares more about Text + image -> text ability or about price band and delivery stability.

Then ask whether StepFun can fit the protocol stack you already run today.

China-focused model routes should be judged inside China procurement and channel workflows, not as a copy of global defaults.

API & PRICING

PROVIDER

StepFun

DEFAULT API URL

https://platform.stepfun.com

INPUT

$0.45

OUTPUT

$1.6

CONTEXT WINDOW

128K

PROTOCOLS

StepReasoningVision

RELATED FAMILIES

Step-2Step-1o

SAME PROVIDER MODELS

Step-2

StepFun's Step line is currently tracked for Text in -> text out work. It is better used first for model judgment and route selection.

Model snapshot updated on 2026-05-11.

Latest model return

Fresh-release traffic should not stop at the model profile

If this provider is also pushing a newer release, the stronger next move is to reopen that latest-model page with the model profile still in mind.

Step-2

This provider is also pushing this newer model right now, so it is worth reopening the latest-model angle.

Open latest model page

NEXT ACTIONS

Do not stop at the model name. Move to the next action.

Core routes

Do not strand search traffic on a single model page

After the model read, route people back into checking, the main catalog, provider pricing, and comparison paths so one query turns into deeper browsing.

Back to models

Return to the main model table instead of stopping at one SKU.

Open provider

Move into the provider profile for supply-side context and routes.

Open pricing

Put pricing, context, and sell-through signals together.

Latest models

Pull fresh-model intent back into the latest-models hub.

Open compare

Use comparisons only after the choice set has narrowed.

Open StepFun provider profile

Do not stop at the model name. Pull provider, protocol, Base URL, and supply position back into the decision.

Open provider profile

Open real workflows

Moving from a model page back into a workflow page is usually more useful than circling around names.

Open use cases

Pilot routes

These pages are in the next sampling lane

They are not being pushed through robots yet. Feed them from strong intent pages first, then decide whether they deserve to return to the public crawl lane.

Model key route

Use the route page to sample callable models, pricing context, limits, and listing readiness around this model.

Open pilot page

Model error route

Use the error page to sample what people actually hit when this model fails in real API workflows.

Open pilot page