Step 3.7 Flash is StepFun's latest high-efficiency multimodal Mixture-of-Experts model. It pairs a 196B-parameter language backbone with a vision encoder for native image and video understanding, activating roughly 11B parameters...
With CoreAI, you can start chatting with StepFun: Step 3.7 Flash instantly — no separate subscription needed. CoreAI lets you chat with StepFun: Step 3.7 Flash alongside 300+ other AI models from Stepfun and other providers like OpenAI, Anthropic, Google, Meta, and more.
Among the 371 chat models on CoreAI, StepFun: Step 3.7 Flash ranks #204 by context window — 256K tokens, roughly 192,000 words or 384 pages of text in a single conversation. On price, it is the #9 cheapest of 179 standard-tier models by input cost. It joined the catalog on 2026-05-28. It supports step-by-step reasoning (thinking mode) and accepts image input.
Every model in this table is available on CoreAI — open the web app and run the same prompt through StepFun: Step 3.7 Flash and StepFun: Step 3.5 Flash side by side to judge with your own eyes.
A typical question (about 1,000 tokens in, 500 out) runs $0.00077 on StepFun: Step 3.7 Flash's raw per-token rates; a heavy session with a 50K-token document costs about $0.016. On CoreAI you don't juggle these numbers — one subscription covers StepFun: Step 3.7 Flash and 300+ other models under a plan usage limit, with no API keys. See plans.
StepFun: Step 3.7 Flash handles 256K tokens of context — roughly 192,000 words, or about 384 pages of text in one conversation.
StepFun: Step 3.7 Flash's underlying rates are $0.2 per 1M input tokens and $1.15 per 1M output tokens. On CoreAI it is included in one subscription alongside 300+ models, so there is no per-token billing to manage.
Yes — StepFun: Step 3.7 Flash accepts image input, so you can attach screenshots, photos or diagrams and ask questions about them.
Yes. StepFun: Step 3.7 Flash can work through problems step by step before answering; on CoreAI you can toggle thinking mode per message.
Open the CoreAI web app or the iOS/Android app, pick StepFun: Step 3.7 Flash in the model selector, and chat — no API key, no per-token billing. One subscription covers StepFun: Step 3.7 Flash and 300+ other models.
The closest alternatives on CoreAI are StepFun: Step 3.5 Flash, SpaceXAI: Grok Build 0.1, IBM: Granite 4.0 Micro — similar capability. The fastest way to choose is running one prompt through them side by side in CoreAI's Compare view.
Chat with StepFun: Step 3.7 Flash and 300+ other AI models — all in one app.