NanoGPT
Step 3.5 Flash
Canonical ID:
nano-gpt/stepfun-ai/step-3.5-flash
StepFun flash lane for quick multimodal reasoning and coding assistance
Overview
- Provider
-
NanoGPT
- Family
- step-3.5-flash
- Release date
- 2026-01-29
- Last updated
- 2026-02-13
- Input modalities
- text
- Output modalities
- text
Pricing and Limits
Token pricing
- Input
- $0.1/1M
- Output
- $0.3/1M
- Cached input
- N/A
Context and output
- Context window
- 262,144
- Max output tokens
- 65,536
- Qualified ID
- nano-gpt/stepfun-ai/step-3.5-flash
Model Summary
Step 3.5 Flash is a model listing in the NanoGPT provider catalog. It is categorized under the step-3.5-flash family.
The model supports text modalities across input/output paths. Reported context capacity is 262,144. Pricing is listed at $0.1/1M input and $0.3/1M output.
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Same Family: step-3.5-flash
Comparable models in the same family across providers.
| Model | Provider | Context | Input | Output | Flags |
|---|---|---|---|---|---|
|
Step 3.5 Flash
nvidia/stepfun-ai/step-3.5-flash
|
Nvidia
|
256,000 | $0/1M | $0/1M |
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|
Step 3.5 Flash
stepfun/step-3.5-flash
|
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|
256,000 | $0.096/1M | $0.288/1M |
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|
Step 3.5 Flash
huggingface/stepfun-ai/Step-3.5-Flash
|
Hugging Face
|
262,144 | $0.1/1M | $0.3/1M |
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|
|
Step 3.5 Flash
stepfun-ai/step-3.5-flash
|
StepFun (Global)
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256,000 | $0.1/1M | $0.3/1M |
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|
Step 3.5 Flash
stepfun-ai-step-plan/step-3.5-flash
|
StepFun Step Plan (Global)
|
256,000 | N/A | N/A |
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|
|
Step 3.5 Flash
stepfun-step-plan/step-3.5-flash
|
StepFun Step Plan (China)
|
256,000 | N/A | N/A |
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Tools
|
|
Step 3.5 Flash 2603
nano-gpt/stepfun-ai/step-3.5-flash-2603
|
NanoGPT
|
262,144 | $0.1/1M | $0.3/1M |
Reasoning
|
|
Step 3.5 Flash 2603
stepfun-step-plan/step-3.5-flash-2603
|
StepFun Step Plan (China)
|
256,000 | N/A | N/A |
Reasoning
Tools
|
|
Step 3.5 Flash 2603
stepfun-ai/step-3.5-flash-2603
|
StepFun (Global)
|
256,000 | $0.1/1M | $0.3/1M |
Reasoning
Tools
|
|
Step 3.5 Flash 2603
stepfun/step-3.5-flash-2603
|
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|
256,000 | $0.1/1M | $0.3/1M |
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|