Provider · 2026-05-22
stepfun-ai
| Model | Input / 1M | Output / 1M | Context | Providers | Tags |
|---|---|---|---|---|---|
| Step 3.5 Flash | $0.096 | $0.288 | 256K | 1 | tools · reasoning · open-weights |
| Step 3.5 Flash 2603 | $0.100 | $0.300 | 256K | 1 | tools · reasoning · open-weights |
Frequently asked questions
How many AI models does stepfun-ai offer?
We track 2 canonical stepfun-ai models. The list is recomputed daily.
Which stepfun-ai model is the cheapest?
Step 3.5 Flash is currently the lowest-priced stepfun-ai model, at $0.096 per 1M input tokens and $0.288 per 1M output tokens. For the full apples-to-apples list, see /pricing/cheapest-llm-api.
Which stepfun-ai model has the largest context window?
Step 3.5 Flash leads at 256K tokens. This is the total of prompt + completion.
Which stepfun-ai models support tool calling?
Multiple stepfun-ai models support tool calling, with Step 3.5 Flash being a popular pick. The capability column in the table above marks every model with stepfun-ai tool-calling support.
What are the best alternatives to stepfun-ai?
Depends on the use case. For raw cost savings, look at /pricing/cheapest-llm-api. For agent-oriented workloads, /best/best-ai-model-for-agents. For long-document workflows, /best/best-long-context-llm.
How fresh is this stepfun-ai pricing data?
Daily. Our pipeline syncs every morning and rebuilds these pages on data change, so list-price moves and new model releases land within roughly 24 hours.
Explore more
Top stepfun-ai models
- Step 3.5 Flash$0.10 in / $0.29 out
- Step 3.5 Flash 2603$0.10 in / $0.30 out
Browse by use case
Browse by capability
Last updated:
Prices in USD per 1M tokens. Unknown means the provider does not publish per-token pricing.
Pricing and capabilities are refreshed daily and reconciled against each provider's official documentation. Always verify critical production decisions with the provider directly.