Stepfun Step 3 5 Flash costs $0.090/1M input tokens and $0.300/1M output tokens as of 2026-06-27. Openrouter publishes this model with a 262K tokens context window. o10 lists Stepfun Step 3 5 Flash on OpenRouter at routing band C0. API slug stepfun-step-3-5-flash. Verify list prices against the venue you call.
Last updated: 2026-06-27. Full catalog. Reference prices are dated snapshots. Compare total cost and measured task quality before choosing a route.
Stepfun Step 3 5 Flash. Price, context, and routing
Stepfun Step 3 5 Flash is a chat model from openrouter (slug: stepfun-step-3-5-flash). Pick Stepfun Step 3 5 Flash when your evals pass at band C0 and the fulfillment hosts below are allowed venues. Published input pricing starts at $0.090/1M tokens. Context window: 262K tokens.
Catalog snapshot 2026-06-27.
When should you pick Stepfun Step 3 5 Flash?
Pick Stepfun Step 3 5 Flash when your evals pass at band C0 and the fulfillment hosts below are allowed venues. Stepfun Step 3 5 Flash is the openrouter SKU in this catalog. Compare same-provider siblings before jumping labs.
How does Stepfun Step 3 5 Flash differ from sibling models?
Stepfun Step 3 5 Flash is the openrouter SKU in this catalog. Compare same-provider siblings before jumping labs.
How much does Stepfun Step 3 5 Flash cost per million tokens?
Stepfun Step 3 5 Flash costs $0.090/1M input tokens and $0.300/1M output tokens in the gateway catalog snapshot (2026-06-27). Endpoint pricing may differ by fulfillment host.
Sourced from gateway catalog snapshot.
Where can you run Stepfun Step 3 5 Flash?
Stepfun Step 3 5 Flash is configured on OpenRouter. Known host IDs: openrouter: openrouter/stepfun/step-3.5-flash. This model is routable through o10 eval-gated routing.
What is Stepfun Step 3 5 Flash's context window?
Stepfun Step 3 5 Flash supports a 262K tokens context window in the gateway catalog snapshot. Context limits may vary by fulfillment host endpoint.
What o10 routing band is Stepfun Step 3 5 Flash?
Stepfun Step 3 5 Flash is classified at o10 routing band C0. Bands group models by cost tier and eval profile: C0 (economy), C1 (standard), C2 (capable), C3/C4 (frontier). Production routing is enabled for this slug.
Who makes Stepfun Step 3 5 Flash?
Stepfun Step 3 5 Flash is attributed to source provider openrouter in the o10 catalog. Fulfillment hosts (OpenRouter) supply API access; list pricing may differ by venue.
01Deep dive
Specifications
Stepfun Step 3 5 Flash in the o10 unified catalog.
Stepfun Step 3 5 Flash specifications
Field
Value
o10 slug
`stepfun-step-3-5-flash`
Type
text
Band
C0
Routable
Yes
Source provider
openrouter
Primary host
OpenRouter
Gateway ID
`stepfun/step-3.5-flash`
Context window
262,114 tokens
Released
2026-01-29
02Deep dive
Token pricing
Gateway snapshot pricing for Stepfun Step 3 5 Flash.
Stepfun Step 3 5 Flash token pricing
Unit
Price
Input
$0.09/1M tokens
Output
$0.3/1M tokens
03Deep dive
Fulfillment hosts
Upstream venues configured for Stepfun Step 3 5 Flash.
Stepfun Step 3 5 Flash fulfillment routes
Host
Upstream model ID
openrouter
openrouter/stepfun/step-3.5-flash
04Deep dive
Gateway provider endpoints
Endpoint-level pricing and latency from the gateway catalog.
Stepfun Step 3 5 Flash costs $0.090/1M input tokens and $0.300/1M output tokens in the gateway snapshot (2026-06-27). Verify against your provider's published pricing.
What is Stepfun Step 3 5 Flash's context window?
Stepfun Step 3 5 Flash supports 262K tokens in the gateway catalog snapshot. Host-specific endpoints may differ.
Which hosts serve Stepfun Step 3 5 Flash?
Stepfun Step 3 5 Flash (stepfun-step-3-5-flash) is configured on: OpenRouter. Upstream model IDs are listed in the fulfillment routes section.
Is Stepfun Step 3 5 Flash routable through o10?
Yes. Stepfun Step 3 5 Flash is routable at band C0. Send model: "stepfun-step-3-5-flash" or use an o10 smart routing alias.
How do I call Stepfun Step 3 5 Flash via o10?
Use o10 slug "stepfun-step-3-5-flash" or gateway ID "stepfun/step-3.5-flash" depending on your integration. Gateway-compatible endpoints accept OpenAI-style /v1 requests.
How does o10 route this model?
o10 routes Stepfun Step 3 5 Flash only when per-use-case evals clear at your quality floor. Band C0 indicates cost tier. See /kyi for governance and /models/routing for smart aliases.