Step 3.7 Flash
step-3-7-flash
StepFun flash model for efficient multimodal reasoning, coding, and tool use
Specification
most-agreed values
Context
262K
Max output
262K
Released
2026-05-29
Knowledge cutoff
2026-03-01
Retires
—
Open weights
yes
Input
text, image, video
Output
text
Price
US dollars per million tokens · most-agreed
Input
$0.19
Output
$1.14
Cache read
$0.03
Cache write
free
Available from 23 hosts
| Host | In $/M | Out $/M | Cache rd | Cache wr | Context | Output | Retires |
|---|---|---|---|---|---|---|---|
| kenari | free | free | — | — | 256K | 256K | — |
| kenari · free | free | free | — | — | 256K | 256K | — |
| kilo · free | free | free | free | — | 262K | 262K | — |
| nvidia · stepfun-ai | free | free | — | — | 256K | 16K | — |
| unorouter · free | free | free | — | — | 256K | 256K | — |
| stepfun | $0.185 | $1.11 | $0.037 | — | 256K | 256K | — |
| stepfun-ai | $0.185 | $1.11 | $0.037 | — | 256K | 256K | — |
| ambient · stepfun | $0.19 | $1.14 | $0.03 | free | 262K | 262K | — |
| deepinfra | $0.20 | $1.15 | $0.04 | — | 262K | — | — |
| deepinfra · stepfun-ai | $0.20 | $1.15 | $0.04 | — | 262K | 256K | — |
| edenai | $0.20 | $1.15 | $0.04 | — | 262K | 256K | — |
| edenai · flexai | $0.20 | $1.15 | — | — | 262K | 256K | — |
| empiriolabs | $0.20 | $1.15 | $0.04 | — | 256K | 131K | — |
| huggingface · stepfun-ai | $0.20 | $1.15 | — | — | 262K | 256K | — |
| kilo · stepfun | $0.20 | $1.15 | $0.04 | — | 256K | 230K | — |
| nano-gpt · thinking | $0.20 | $1.15 | $0.04 | — | 262K | 256K | — |
| novita | $0.20 | $1.15 | $0.04 | — | 262K | 256K | — |
| openrouter · stepfun | $0.20 | $1.15 | $0.04 | — | 262K | 230K | — |
| requesty | $0.20 | $1.15 | $0.04 | — | 262K | 256K | — |
| vercel · stepfun | $0.20 | $1.15 | $0.04 | — | 256K | 256K | — |
| zenmux · stepfun | $0.20 | $1.15 | — | — | 256K | 256K | — |
| stepfun-ai-step-plan | — | — | — | — | 256K | 256K | — |
| stepfun-step-plan | — | — | — | — | 256K | 256K | — |
