StepFun › Step 3.5 Flash › Pricing
$0.10 / $0.30per 1M tokens in / out
$0.02cache read · −80%
#309on OpenRouter by tokens · 1.4B / week
Price sheetper 1M tokens
| Input | $0.10 | list |
| Output | $0.30 | |
| Cache read | $0.02 | −80% vs input |
| Context · max output | 256K · 256K | tokens |
Where to buy5 providers · per 1M tokens
| Provider | Input | Output | Context |
|---|---|---|---|
| DeepInfra | $0.09 | $0.30 | — |
| Featherless | $0.10 | $0.30 | — |
| lab-stepfun | $0.10 | $0.30 | — |
| SiliconFlow | $0.10 | $0.30 | 262K |
| stepfunlab | $0.10 | $0.30 | — |
In StepFun's line-upper 1M in / out
| Step 3.5 Flash 2603 | $0.10 / $0.30 | 0% |
| Step 3.7 Flash | $0.20 / $1.15 | 2.9× |
| Step 1o Turbo Vision | $0.36 / $1.15 | 3.7× |
| Step 5 Preview | $1 / $2.70 | 9.5× |
Cheaper for the same workvs Step 3.5 Flash
| Ling 3.0 Flash VL thinkingOpen | -40% | score +45% | $0.06 / $0.18 |
| Solar Mini 4 | -42% | score +42% | $0.37 |
| Ling 3.0 Flash Fin thinkingOpen | -40% | score +33% | $0.06 / $0.18 |
| Ling 3.0 Flash thinkingOpen | -40% | score +19% | $0.06 / $0.18 |
| Qwen 3.5 9B non-thinkingOpen | -38% | score -22% | $0.08 / $0.13 |
Pricing questions
How much does Step 3.5 Flash cost?›
$0.10 per 1M input tokens and $0.30 per 1M output tokens. Cached input is $0.02.
Is Step 3.5 Flash free to use?›
There is no free API tier.
How much does prompt caching save?›
Cache reads cost $0.02 per 1M, 80% below the input price.
Is Step 3.5 Flash cheaper than Step 3.5 Flash?›
It costs the same per token: $0.10 / $0.30.
What is a cheaper alternative to Step 3.5 Flash?›
Ling 3.0 Flash VL at thinking effort costs -40% per task with a score +45% on .