What is Stepfun Step 3 5 Flash?
Stepfun Step 3 5 Flash is a language model in the o10 fulfillment catalog (slug: stepfun-step-3-5-flash). Published input pricing starts at $0.090/1M tokens. Context window: 262K tokens.
Catalog snapshot 2026-06-27.
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.
Last updated: 2026-06-27. Full catalog
Stepfun Step 3 5 Flash — specs, hosts, and routing
AnswersSelf-contained
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. Each host maps to an upstream model ID listed in the fulfillment routes table. 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.
| 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.
| Unit | Price |
|---|---|
| Input | $0.09/1M tokens |
| Output | $0.3/1M tokens |
03Deep dive
Fulfillment hosts
Upstream venues configured for Stepfun Step 3 5 Flash.
| Host | Upstream model ID |
|---|---|
| openrouter | openrouter/stepfun/step-3.5-flash |
04Deep dive
Gateway provider endpoints
Endpoint-level pricing and latency from the gateway catalog.
| Provider | Input ($/1M) | Latency p50 | Uptime 1d |
|---|---|---|---|
| deepinfra | $0.09 | 193ms | 10000.0% |
05Deep dive
Routing with o10
Eval-gated model selection for this slug.
o10 slug: stepfun-step-3-5-flash. Band: C0. Routable: yes.
See [/models/routing](/models/routing) for smart aliases (o10/auto, o10/economy) and [/kyi](/kyi) for governance.
SourceMethodology
Fulfillment catalog 2026-06-27. Gateway pricing joined where slug match exists.
FAQFrequently asked questions
Common questions
How much does Stepfun Step 3 5 Flash cost?
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.