Step 3.7 Flash
StandardStepFun's efficient multimodal MoE model for high-throughput analysis and agents.
256K-token context with text, image, and video understanding, configurable reasoning, and tool use. Good for visual document work, coding support, bilingual Chinese-English workflows, and cost-sensitive production traffic.
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Step 3.7 Flash is somewhat expensive at $0.20/M tokens input and $1.15/M tokens output. Cached input reads are priced at $0.04/M tokens, making repeated context cheaper. The model supports vision/image input, extended reasoning, a 256K context window.
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Compare with
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Nemotron 3 Ultravs Step 3.7 FlashFrequently Asked Questions about Step 3.7 Flash▼
When was Step 3.7 Flash released?
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Step 3.7 Flash was released on May 28, 2026.
Who created Step 3.7 Flash?
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Step 3.7 Flash was created by StepFun.
How much does Step 3.7 Flash cost?
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Step 3.7 Flash costs $0.20/M input tokens and $1.15/M output tokens.
What is Step 3.7 Flash API pricing?
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The Step 3.7 Flash API is priced at $0.20 per million input tokens and $1.15 per million output tokens. You can access Step 3.7 Flash through idapt.app alongside 200+ other AI models in one workspace.
Is Step 3.7 Flash a reasoning model?
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Yes, Step 3.7 Flash is a reasoning model. It can think step-by-step through complex problems before providing an answer, often yielding better results on difficult tasks like math, coding, and multi-step logic.
Does Step 3.7 Flash support image or vision input?
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Yes, Step 3.7 Flash supports vision/image input. You can share images in your conversation and the model will analyze and respond based on their content.
Does Step 3.7 Flash support audio?
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No, Step 3.7 Flash does not support audio input.
What is the context window of Step 3.7 Flash?
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Step 3.7 Flash has a context window of 256K tokens, meaning it can process approximately 192,000 words of context at once.
Is Step 3.7 Flash open source?
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Step 3.7 Flash is a proprietary model developed by StepFun. The model weights and training data are not publicly available.
What is Step 3.7 Flash good at?
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Based on benchmark data, Step 3.7 Flash excels at: visual analysis and image understanding. It is StepFun's capable model suitable for a wide range of tasks.
Where can I use Step 3.7 Flash?
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You can chat with Step 3.7 Flash on idapt.app — no separate API key required. idapt is an AI workspace with 200+ models, agents, computers, and tasks. You can also access Step 3.7 Flash through StepFun's own API or platform.