Step 3.5 Flash 2603
Model Information
| Slug | step-3-5-flash-2603 |
|---|---|
| LLMs.txt | View |
| Release Date | April 2, 2026 |
Organization
| Name | StepFun |
|---|---|
| Website | https://platform.stepfun.ai |
Available at 6 Providers
| Provider | Type | Model Name | Original Model | Input ($/1M) | Output ($/1M) | Free | Actions | |
|---|---|---|---|---|---|---|---|---|
|
Nano-GPT |
Chat
Code
|
Step 3.5 Flash 2603
|
stepfun-ai/step-3.5-flash-2603
|
$0.10 | $0.30 | ||
|
StepFun |
Step 3.5 Flash 2603
|
step-3.5-flash-2603
|
$0.10 | $0.30 | |||
|
EmpirioLabs AI |
Step 3.5 Flash 2603
|
step-3-5-flash-2603
|
$0.10 | $0.30 | |||
|
StepFun |
step-3.5-flash-2603
|
- | - | ||||
|
StepFun Step Plan (Global) |
Step 3.5 Flash 2603
|
step-3.5-flash-2603
|
- | - | |||
|
StepFun Step Plan (China) |
Step 3.5 Flash 2603
|
step-3.5-flash-2603
|
- | - |