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Step-3.5-Flash(v2603) API Price
StepFun · step-3.5-flash-2603
| Billing | CNY · 1M tokens |
|---|---|
| Modalities | Text |
| Deep Thinking | Supported |
| Verified Date | 2026-09-22 |
| Official pricing page | platform.stepfun.com/docs/zh/guides/pricing/details ↗ |
Source text: the note below is the model's official text, kept in its original Chinese and not translated.
step-3.5-flash 的日期快照 id(官方定价页「推理大模型」表与 step-3.5-flash 并列单列,同价 0.7/2.1,缓存命中 0.14 元每百万 tokens);与仓库 Step-3.5-Flash(step-3-5-flash)为同一模型的快照/主名关系,规格与主名条目一致。
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Monthly Cost Estimate
30 days · no cache hits · list price
Free quotas, tiered pricing, batch discounts, and time-based pricing are not included; refer to official bills.
StepFun Related Models
- Step-5-Preview ¥7 / ¥20
- Step-3.7-Flash ¥1.35 / ¥8.1
- Step-3.5-Flash ¥0.7 / ¥2.1
- Step-1o-Turbo-Vision ¥2.5 / ¥8
- Step-2X-Large(Text-to-Image) ¥0.1 /image
- StepAudio 2.5 TTS Tiered
- StepAudio 3 TTS Tiered
- StepAudio 3 Realtime Preview (limited-time free) Free
- StepAudio 3 Chat Preview (limited-time free) Free
- StepAudio 3 ASR Max Tiered
- StepAudio 2.5 ASR Tiered
- StepAudio 3 Music Preview (limited-time free) Free
FAQ
How much does the Step-3.5-Flash(v2603) API cost?
Input ¥0.7/1M tokens, output ¥2.1/1M tokens
Which input modalities does Step-3.5-Flash(v2603) support?
Text. Supports deep thinking / reasoning.
What is the approximate monthly cost of Step-3.5-Flash(v2603)?
Depends on volume: light use (1M input + 300K output per day) ≈ ¥39.9/month; medium (5M + 1.5M) ≈ ¥199.5/month; heavy agents (10M + 3M) ≈ ¥399/month. Cache hits, batch discounts and tiered pricing can lower this further.
How does Step-3.5-Flash(v2603) compare with peers on value?
StepFun Step-3.5-Flash(v2603) is priced low among comparable models; compare against similar models. See the Pricemon market table for a full comparison.
What use cases suit Step-3.5-Flash(v2603)?
Suited to applications in its domain.
Does Step-3.5-Flash(v2603) have a free tier?
Check StepFun's official pricing page for the latest free quota, trial policy and tiered pricing. Policies differ by vendor and change over time.