| Provider | StepFun |
|---|---|
| Model ID | stepfun/step-5-preview |
| Prompt Price per 1M tokens | $1 |
| Completion Price per 1M tokens | $2.7 |
| Sample Workload Cost 1M input + 500K output | $2.35 |
| Context Window | 1M |
| Release Date | |
| Popularity | #2 |
| Popularity Signal | 15.1T tokens |
New🔥Step 5 Preview
StepFun API model specs with normalized input price, output price, context window, sample workload cost, and related comparisons.
Page updated:
Data confirmed:
Prices normalized to USD per 1M tokens
Sample workload: 1M input + 500K output
Budget brief
Step 5 Preview is estimated at $2.35 for the standard workload.
Step 5 Preview is best suited for long-context workloads. A 1M input token plus 500K output token workload is estimated at $2.35.
Input price$1per 1M tokens
Output price$2.7per 1M tokens
Context window1Mreported maximum
Popularity#215.1T tokens signal volume
Use this as a first-pass planning estimate, then verify provider limits, routing, discounts, and availability before production deployment.
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This estimate uses normalized public API pricing per 1M tokens. It is a planning aid, not a billing quote. Verify provider pricing, limits, and terms before production use.
Alternative path
Alternative Shortlist
Use these rows to build a test shortlist around Step 5 Preview. Lower cost, same-provider fit, and larger context are separate decisions, so each group is ranked by a different signal.
Lower-cost alternatives
Cross-provider candidates with a lower standard 1M input plus 500K output estimate.
| Model | Provider | Sample Cost | Context | Why it is here | Next Step |
|---|---|---|---|---|---|
| 🔥Nemotron 3 Ultra (free) | NVIDIA | $0 | 1M | Lower standard workload estimate from another provider. | Open model Compare |
| NewApodex 1.1 Mini (free) | Apodex | $0 | 262.14K | Lower standard workload estimate from another provider. | Open model Compare |
| Space Bunny Alpha | stealth | $0 | 1M | Lower standard workload estimate from another provider. | Open model Compare |
| Union Alpha | stealth | $0 | 262.14K | Lower standard workload estimate from another provider. | Open model Compare |
Same-provider swaps
Lower-cost options from the same provider, useful when account setup or procurement is already fixed.
| Model | Provider | Sample Cost | Context | Why it is here | Next Step |
|---|---|---|---|---|---|
| Step 3.5 Flash | StepFun | $0.25 | 262.14K | Same provider with a lower standard workload estimate. | Open model Compare |
| Step 3.7 Flash | StepFun | $0.77 | 262.14K | Same provider with a lower standard workload estimate. | Open model Compare |
Larger-context upgrades near this budget
Models with more context that stay within a close sample-cost band when price data is available.
| Model | Provider | Sample Cost | Context | Why it is here | Next Step |
|---|---|---|---|---|---|
| Grok 4.20 Multi-Agent | SpaceXAI | $2.5 | 2M | More context while staying near this model's sample-cost band. | Open model Compare |
| Grok 4.20 | SpaceXAI | $2.5 | 2M | More context while staying near this model's sample-cost band. | Open model Compare |
| Llama 4 Scout | Meta | $0.47 | 1.31M | More context while staying near this model's sample-cost band. | Open model Compare |
| 🔥MiMo-V2.6-Flash | Xiaomi | $0.28 | 1.05M | More context while staying near this model's sample-cost band. | Open model Compare |
Step 5 Preview is StepFun's flagship model for agentic work, built on a sparse Mixture-of-Experts architecture (27B active / 600B total parameters). It performs strongly in software engineering and professional...
Step 5 Preview is best suited for long-context workloads.
A 1M input token plus 500K output token workload is estimated at $2.35.
Decision Shortcuts
Compare this model
Search head-to-head pages that include Step 5 Preview and review input price, output price, context, and sample workload cost.
Find comparisonsStepFun catalog
See other StepFun models before narrowing your shortlist.
Open provider hubCheaper alternatives
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Browse low-cost modelsLong-context alternatives
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Browse long-context modelsHigh-Interest Comparisons
Search this model| Comparison | Cost-first Pick | Context Pick |
|---|---|---|
| No high-interest comparison is currently available for this model. | ||
Popular Comparisons
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|---|---|
| 🔥DeepSeek V4.1 Flash vs New🔥Step 5 Preview | |
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| New🔥Step 5 Preview vs 🔥Nemotron 3 Ultra (free) | |
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| New🔥Step 5 Preview vs 🔥Claude Opus 5.5 | |
| New🔥Step 5 Preview vs 🔥DeepSeek V4 Flash 0731 | |
| New🔥Step 5 Preview vs 🔥GLM 5.3 | |
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