StepFun: Step 5 Preview
StepFun
StepFun: Step 5 Preview by StepFun costs $1.00 per 1M input tokens and $2.70 per 1M output tokens, with a 1M-token context window.
Pricing
Input (per 1M tokens)
$1.00
Output (per 1M tokens)
$2.70
Cached input (per 1M)
$0.05
| Provider | Input / 1M | Output / 1M |
|---|---|---|
| openrouter | $1.00 | $2.70 |
| StepFun (China) | $0.96 | $2.74 |
Specifications
- Provider
- StepFun
- Context window
- 1M tokens
- Parameters
- —
- Released
- —
- Open weights
- —
- Frontier model
- No
- Hugging Face
- stepfun-ai/Step-5-Preview
Benchmarks
- LMArena Vision Elo
- 1267.4
- LMArena WebDev Elo
- 1563.7
Speed & latency
Time to first token
2.98s
Output speed
81 tok/s
Fastest host: stepfun (via vercel-ai-gateway).
Compare StepFun: Step 5 Preview with…
StepFun: Step 5 Preview vs Kimi K2 Instruct$2.65/1MStepFun: Step 5 Preview vs Qwen3 235B-A22B$2.80/1MStepFun: Step 5 Preview vs Qwen2.5 32B Instruct$2.80/1MStepFun: Step 5 Preview vs Qwen3-VL 235B-A22B$2.80/1MStepFun: Step 5 Preview vs Llama 3.3 70B$2.80/1MStepFun: Step 5 Preview vs kimi-k2-0905-preview$2.53/1M
FAQ
How much does StepFun: Step 5 Preview cost?
StepFun: Step 5 Preview is priced at $1.00 per 1M input tokens and $2.70 per 1M output tokens. Output tokens cost more than input.
What is StepFun: Step 5 Preview's context window?
StepFun: Step 5 Preview supports a context window of 1M tokens — the maximum prompt plus response length it can handle in a single request.
Is StepFun: Step 5 Preview open weight?
Open-weight status for StepFun: Step 5 Preview is not recorded in our dataset.
Data as of 2026-10-15. Source: Pricing via OpenRouter API, openrouter.ai. Pricing is per 1M tokens (USD); confirm with the provider before production use.