Step 3.5 Flash 2603
Compare every TrustedRouter route for Step 3.5 Flash 2603, including token pricing, context limits, privacy policy, regional availability, measured uptime, and API support.
stepfun/step-3.5-flash-2603
| Publisher | StepFunstepfun |
|---|---|
| AI IQ | No AI IQ profile matched yet. |
| Context | 262,144 tokens |
| Providers | |
| Endpoints | 1 endpoint |
| Modes | chat |
| Routes | prepaid |
Current route evidence
Live leaderboardRecent provider-route uptime spans 100.00% across 1 route and 1 provider. Price comes from the current prepaid catalog. Speed and uptime come from routed probes rather than vendor claims.
Providers serving this model
Sorted by lowest combined prompt and completion price. Use
"provider": {"sort": "throughput"} in the request body
(or append :nitro to the model id) to route to the
fastest provider instead.
Trust boundary: TR router attestation verifies the TrustedRouter gateway only. Provider policy separately describes the upstream model host's retention, confidential compute, and E2EE posture.
| Provider | Usage | Prompt | Completion | TR router attested | Provider policy |
|---|---|---|---|---|---|
| StepFunstepfun | Credits | $0.1055/1M | $0.3165/1M | yes | no verified privacy claim |
Endpoint JSON: https://api.trustedrouter.com/v1/models/stepfun/step-3.5-flash-2603/endpoints
Compare Step 3.5 Flash 2603
All comparisons- DeepSeek: DeepSeek V4 Flash 0731 vs Step 3.5 Flash 260335 combined provider routes
Questions
What model ID should I use for Step 3.5 Flash 2603?
Use stepfun/step-3.5-flash-2603 as the model field with the TrustedRouter OpenAI-compatible API. The same model ID works for prepaid and eligible BYOK routes.
Which providers serve Step 3.5 Flash 2603?
TrustedRouter currently lists StepFun for Step 3.5 Flash 2603. Provider availability and routing eligibility can change as catalog and health data update.
How much does Step 3.5 Flash 2603 cost through TrustedRouter?
The current lowest prepaid input price is $0.1055/1M and the lowest output price is $0.3165/1M. Prices are per one million tokens and come from the current route catalog.
How do I require zero data retention for Step 3.5 Flash 2603?
Set provider.min_privacy to zdr on the request. TrustedRouter considers only routes with a recorded zero-data-retention posture and fails closed if no eligible route remains.