Step 5 Preview
step-5
StepFun's next-generation flagship base model for coding and professional knowledge work, with native text, image, and video input and a 1M-token context window
Specification
most-agreed values
Context
1M
Max output
1M
Released
2026-09-16
Knowledge cutoff
—
Retires
—
Open weights
yes
Input
text, image, video
Output
text
Price
US dollars per million tokens · most-agreed
Input
$1.00
Output
$2.70
Cache read
$0.10
Available from 27 hosts
| Host | In $/M | Out $/M | Cache rd | Cache wr | Context | Output | Retires |
|---|---|---|---|---|---|---|---|
| nvidia · stepfun-ai | free | free | — | — | 1M | 1M | — |
| ezkielyna | $0.4579 | $1.236 | $0.0458 | — | 1M | 1M | — |
| runinfra · stepfun-ai | $0.90 | $2.43 | $0.09 | — | 1M | 33K | — |
| commandcode · stepfun | $1.00 | $2.70 | $0.05 | — | 1M | 1M | — |
| deepinfra · stepfun-ai | $1.00 | $2.70 | $0.10 | — | 1M | 1M | — |
| edenai | $1.00 | $2.70 | $0.10 | — | 1M | 1M | — |
| edenai · tencent | $1.00 | $2.70 | $0.05 | — | 1M | 1M | — |
| empiriolabs | $1.00 | $2.70 | $0.10 | — | 1M | 131K | — |
| empiriolabs · empiriolabs | $1.00 | $2.70 | $0.10 | — | 1M | 131K | — |
| gmi · gmi | $1.00 | $2.70 | $0.10 | — | 1M | — | — |
| kilo · stepfun | $1.00 | $2.70 | $0.10 | — | 1M | 64K | — |
| llmgateway | $1.00 | $2.70 | $0.10 | — | 1M | 1M | — |
| llmgateway-providers · tencent | $1.00 | $2.70 | $0.10 | — | 1M | 66K | — |
| nano-gpt · stepfun | $1.00 | $2.70 | $0.05 | — | 1M | 66K | — |
| novita-ai · stepfun | $1.00 | $2.70 | $0.10 | — | 1M | 64K | — |
| opencode_go · opencode-go | $1.00 | $2.70 | $0.10 | — | 1M | 66K | — |
| opencode-go | $1.00 | $2.70 | $0.10 | — | 1M | 66K | — |
| openrouter · stepfun | $1.00 | $2.70 | $0.10 | — | 1M | 64K | — |
| requesty | $1.00 | $2.70 | $0.05 | — | 1M | 66K | — |
| stepfun-ai | $1.00 | $2.70 | $0.10 | — | 1M | 66K | — |
| vercel · stepfun | $1.00 | $2.70 | $0.10 | — | 1M | 1M | — |
| stepfun | $1.0461 | $2.9889 | $0.1046 | — | 1M | 66K | — |
| aimlapi · stepfun | $1.058 | $2.8566 | $0.0529 | — | 1M | 64K | — |
| aihubmix | $1.08 | $3.0888 | $0.054 | — | 1M | 64K | — |
| kyma · kyma | $1.35 | $3.645 | $0.135 | — | 1M | 64K | — |
| stepfun-ai-step-plan | — | — | — | — | 1M | 66K | — |
| stepfun-step-plan | — | — | — | — | 1M | 66K | — |
Price history
append-only observations · a listing writes a row only when its price moves
| Date | Host | Field | $/M |
|---|---|---|---|
| 2026-09-21 | vercel · stepfun | Cache read | $0.05 |
| 2026-10-17 | vercel · stepfun | Cache read | $0.0475 |
| 2026-10-18 | vercel · stepfun | Cache read | $0.10 |
| 2026-09-21 | vercel · stepfun | Input | $1.00 |
| 2026-10-17 | vercel · stepfun | Input | $0.95 |
| 2026-10-18 | vercel · stepfun | Input | $1.00 |
| 2026-09-21 | vercel · stepfun | Output | $2.70 |
| 2026-10-17 | vercel · stepfun | Output | $2.565 |
| 2026-10-18 | vercel · stepfun | Output | $2.70 |
| 2026-09-22 | empiriolabs | Cache read | $0.05 |
| 2026-11-05 | empiriolabs | Cache read | $0.10 |
| 2026-09-22 | stepfun-ai | Cache read | $0.05 |
| 2026-10-22 | stepfun-ai | Cache read | $0.10 |
| 2026-09-24 | stepfun | Cache read | $0.048 |
| 2026-10-22 | stepfun | Cache read | $0.1046 |
| 2026-09-24 | stepfun | Input | $0.959 |
| 2026-10-22 | stepfun | Input | $1.0461 |
| 2026-09-24 | stepfun | Output | $2.741 |
| 2026-10-22 | stepfun | Output | $2.9889 |
| 2026-10-04 | edenai · tencent | Cache read | $0.05 |
| 2026-10-21 | edenai · tencent | Cache read | $0.05 |
| 2026-10-04 | edenai · tencent | Input | $1.00 |
| 2026-10-21 | edenai · tencent | Input | $1.00 |
| 2026-10-04 | edenai · tencent | Output | $2.70 |
| 2026-10-21 | edenai · tencent | Output | $2.70 |
| 2026-10-09 | kilo · stepfun | Cache read | $0.05 |
| 2026-10-16 | kilo · stepfun | Cache read | $0.10 |
| 2026-10-09 | openrouter · stepfun | Cache read | $0.05 |
| 2026-10-16 | openrouter · stepfun | Cache read | $0.10 |
| 2026-10-13 | aimlapi · stepfun | Cache read | $0.0688 |
| 2026-10-23 | aimlapi · stepfun | Cache read | $0.0529 |
| 2026-10-13 | aimlapi · stepfun | Input | $1.3754 |
| 2026-10-23 | aimlapi · stepfun | Input | $1.058 |
| 2026-10-13 | aimlapi · stepfun | Output | $3.7136 |
| 2026-10-23 | aimlapi · stepfun | Output | $2.8566 |
| 2026-10-16 | deepinfra · stepfun-ai | Cache read | $0.05 |
| 2026-10-17 | deepinfra · stepfun-ai | Cache read | $0.10 |
| 2026-10-16 | edenai | Cache read | $0.05 |
| 2026-10-18 | edenai | Cache read | $0.10 |
| 2026-10-30 | llmgateway | Cache read | $0.05 |
| 2026-11-05 | llmgateway | Cache read | $0.10 |
| 2026-10-30 | llmgateway-providers · tencent | Cache read | $0.05 |
| 2026-11-05 | llmgateway-providers · tencent | Cache read | $0.10 |
| 2026-11-05 | empiriolabs · empiriolabs | Cache read | $0.05 |
| 2026-11-06 | empiriolabs · empiriolabs | Cache read | $0.10 |