StepFun
Explore StepFun models on TrustedRouter with current routes, token pricing, policy sources, privacy posture, regional availability, and API support.
StepFunstepfun
These privacy labels describe StepFun, the upstream model provider. Confidential requires all three: verified provider compute, end-to-end encryption and explicit zero data retention. Account and billing metadata are outside the content-retention claim.
| Provider | StepFun |
|---|---|
| API operator country | CN Legal home of the API operator, not an inference-location guarantee. |
| Headquarters | Not verified |
| Routing status | Active |
| Provider website | https://www.stepfun.com/ |
| Models | 3 public models |
| Credits routes | 3 |
| Zero data retention | no |
| Verified confidential inference | Not verified |
| Policy note | StepFun's public privacy policy does not provide contractual zero retention or confidential-compute guarantees for API requests. TrustedRouter therefore classifies this route as Standard. Policy source |
Inference locations
Provider API declarations are also available on each model's endpoint API. Direct chat and Responses replies separate advertised availability from serving location in usage.inference_location; the actual serving region remains unknown when not reported.
Where the upstream GPUs execute the model, not the provider's headquarters, API ingress, or data storage. ZDR and confidential inference do not by themselves restrict geography.
- Declared countries or regions
- Not verified
No inference-location declaration has been verified for this provider. - Can locations change?
- Not verified. Do not assume that the serving location is fixed.
- Provider region pinning
- Not verified.
- Pinning through TrustedRouter
- No verified provider-specific location pin documented here.
- Infrastructure declaration
- Inference location not verified; no country-specific residency commitment.
- Evidence
- Not yet reviewed.
Provider selection alone is not a region pin. TrustedRouter's US provider filter selects company jurisdiction, not GPU location. A regional gateway hostname does not pin a downstream GPU. For a binding residency requirement, confirm the model, region, failover scope and enforced controls before sending sensitive data.
Measured performance
23 samplesContinuously sampled across StepFun's routed models: p50 TTFT, effective throughput, and success rate. Effective throughput uses provider-reported output tokens over complete request time. Unsupported route and probe-configuration rows are separated from provider downtime. No prompt or output content stored.
| p50 TTFT | 2457 ms |
|---|---|
| Effective throughput | 128 tok/s n=2 |
| Uptime | 100.00% |
| Model | p50 TTFT | Effective throughput | Uptime | Config excluded | Availability samples |
|---|---|---|---|---|---|
| stepfun/step-3.5-flash | 2457 ms | — | 100.00% | — | 11 |
| stepfun/step-3.5-flash-2603 | 2367 ms | — | 100.00% | — | 7 |
| stepfun/step-3.7-flash | 2663 ms | 128 tok/s n=2 | 100.00% | — | 5 |
StepFun performance history · Full provider & model leaderboard.
Models served by StepFun.
Each row links to pricing, provider, benchmark, and API pages for the model.
| Model | AI IQ | Context | Input | Cached input | Output |
|---|---|---|---|---|---|
stepfun/step-3.5-flashStepFun: Step 3.5 Flash |
— | 262,144 | $0.1055/1M | $0.0211/1M | $0.3165/1M |
stepfun/step-3.5-flash-2603Step 3.5 Flash 2603 |
— | 262,144 | $0.1055/1M | $0.0211/1M | $0.3165/1M |
stepfun/step-3.7-flashStepFun: Step 3.7 Flash |
IQ 104#101 | 262,144 | $0.211/1M | $0.0422/1M | $1.21325/1M |
Questions
Does StepFun have zero data retention?
TrustedRouter does not currently mark StepFun as provider-level zero data retention. Use trustedrouter/zdr or provider.min_privacy=zdr to select a different eligible route, and review the linked policy source for changes.
Is StepFun end-to-end encrypted?
TrustedRouter does not currently mark StepFun as end-to-end encrypted at the provider boundary. The TrustedRouter gateway is still attested, but the selected provider normally receives the request in order to run the model. Use trustedrouter/e2e for the stronger route requirement.
Which StepFun models are available through TrustedRouter?
This page currently lists 3 public StepFun models, with live pricing, route count, context length, measured performance when available, and links to each model's provider and benchmark pages.