Text model
Step-3.5 Flash
stepfun/step-3.5-flash
stepfun/step-3.5-flash is a language model from StepFun you can call on the OceanToken API at $0.10 per 1M input tokens and $0.30 per 1M output tokens, with a 262K-token context window and up to 66K output tokens; it supports reasoning, tool calling.
At a glance
| Model ID | stepfun/step-3.5-flash |
|---|---|
| Type | Text |
| Publisher | StepFun |
| Context window | 262,144 tokens |
| Max output | 65,536 tokens |
| Input price | $0.10 per 1M tokens |
| Output price | $0.30 per 1M tokens |
| Capabilities | reasoning, tool calling |
| Endpoint | /v1/chat/completions, /v1/responses |
| API shape | OpenAI-compatible |
| In the catalog since | 2026-01-29 |
Call it
Base URL https://api.oceantoken.ai/v1, your OceanToken key as the bearer token, and the model ID above as model. The OpenAI SDKs work unchanged; see your first request.
curl https://api.oceantoken.ai/v1/chat/completions \
-H "Authorization: Bearer $OCEANTOKEN_API_KEY" \
-H "Content-Type: application/json" \
-d '{"model": "stepfun/step-3.5-flash", "messages": [{"role": "user", "content": "Hello"}]}'
Compared with similar models
Text models on OceanToken closest to stepfun/step-3.5-flash in price. Every price is what you pay, in US dollars, with no platform fee on top.
| Model | Publisher | Context | Price (per 1M tokens) |
|---|---|---|---|
| Step-3.5 Flash | StepFun | 262,144 | $0.10 / $0.30 |
Seed-1.6 Flashbytedance-seed/seed-1.6-flash | ByteDance Seed | 262K | $0.075 / $0.30 |
Mistral Small 3.2 24B Instructmistralai/mistral-small-3.2-24b-instruct | Mistral AI | 256K | $0.10 / $0.30 |
Voxtral Small 24B 2507mistralai/voxtral-small-24b-2507 | Mistral AI | 33K | $0.10 / $0.30 |
More from StepFun
- Step-3.7 Flash
stepfun/step-3.7-flash
All StepFun models on OceanToken
Use it
Create an account All models and prices
Prices and capabilities on this page were read from the live OceanToken catalog on 2026-10-18 (UTC), when the documentation was built. If a price has changed since, the console's Models page shows the current one.