Step 5 Preview
stepfun-ai-step-plan/step-5-previewPor stepfun-ai-step-plan · lançado 2026-09-16
Prices in USD per 1M tokens. Unknown means the provider does not publish per-token pricing.
Capacidades
Model fit scores
0–100 · higher is betterThese scores reward declared capabilities, context size, price and provider availability — they are not benchmark results. Use them as a directional signal alongside your own evaluation.
Coding91
- Tool calling40/40
- Structured output20/20
- Reasoning10/10
- Context window (100K → 1M)20/20
- Provider availability1/10
Agents91
- Tool calling35/35
- Structured output25/25
- Reasoning15/15
- Output token limit15/15
- Provider availability1/10
JSON / structured output70
- Structured output / JSON mode50/50
- Tool calling20/20
- Temperature control0/10
- Price-friendly for high-volume0/20
Cost efficiency0
- Has published price0/100
Long context80
- Context window (100K → 2M)80/90
- Has published price for full window0/10
Vision81
- Accepts image input50/50
- Context window (10K → 1M)30/30
- Has published price0/10
- Provider availability1/10
Production-readiness45
- Number of independent providers5/40
- Has published per-token price0/20
- Context window ≥ 8K15/15
- No data inconsistencies across providers10/10
- Official model (not derivative)15/15
Cost Efficiency Index
Open full calculator →Estimated cost using the recommended provider's headline rate. Each scenario fixes average input/output tokens — the assumptions are shown in the third column.
This model has no published per-token price, so we can't compute a cost estimate. See the provider's official pricing page for current rates.
Disponível em 1 provedores
| Provedor | ID do modelo do provedor | Entrada / 1M | Saída / 1M | Contexto | Lançado |
|---|---|---|---|---|---|
| StepFun Step Plan (Global) stepfun-ai-step-plan | step-5-preview | Unknown | Unknown | 1M | 2026-09-16 |
Frequently asked questions
How much does Step 5 Preview cost?
Step 5 Preview does not have a publicly published per-token price in our data source. This usually means it is gated behind enterprise sales or invite access. Check stepfun-ai-step-plan's official pricing page for the most current rates.
What is the context window of Step 5 Preview?
Step 5 Preview has a context window of 1M tokens, with a max output of 66K tokens per reply. This is the total combined size of prompt + completion.
Does Step 5 Preview support tool calling?
Yes. Step 5 Preview supports tool calling (function calling). This makes it suitable for production agent and automation workloads where the model has to invoke external functions reliably.
Does Step 5 Preview support structured output / JSON mode?
Yes. Step 5 Preview supports structured output / JSON-schema-constrained decoding. This makes it suitable for production agent and automation workloads where the model has to invoke external functions reliably.
Can Step 5 Preview accept image input?
Yes. Step 5 Preview accepts both text and image input. Vision pricing per image is usually billed on top of the regular token rate — check stepfun-ai-step-plan's docs for the exact rule.
Is Step 5 Preview open-weight?
No. Step 5 Preview is a proprietary model — only stepfun-ai-step-plan (and any approved hosting partners) can serve it. The pricing above reflects the cheapest API access.
What are the best alternatives to Step 5 Preview?
If Step 5 Preview doesn't fit, consider Step 3.5 Flash 2603, Step 3.5 Flash, Step 3.7 Flash. Each one targets the same use case — see the Related links below for direct head-to-head pages.
Where does this data come from?
All numbers are normalised into a single canonical model record and reconciled with each provider's official documentation. We re-pull daily and write any changes (price, context, capability) to the /changelog page.
Explore more
More stepfun-ai-step-plan models
- Step 3.5 Flash 2603Unknown pricing
- Step 3.5 FlashUnknown pricing
- Step 3.7 FlashUnknown pricing
Capability lists this model is in
Última atualização:
Pricing and capabilities are refreshed daily and reconciled against each provider's official documentation. Always verify critical production decisions with the provider directly.