AgenticMarket
StepfunOpen WeightReleased: 2026-05-28Step 3.7 Flash
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...
ARCHITECTURE & LIMITS
BENCHMARK EVALUATIONS & CODE METRICS
Verified scores from SWE-bench and Artificial Analysis.
Independent coding benchmark evaluating syntax, algorithms, and code completion
Broad multi-domain reasoning, science, and knowledge retrieval
Autonomous multi-step tool use, API calling, and task execution
TOKEN COST CALCULATOR
Estimate production API costs for Step 3.7 Flash.
COMMUNITY ENGINEERING EVALUATIONS
Verified ratings across 4 core software engineering dimensions.
Refactoring accuracy, syntax correctness, and adherence to design patterns.
Zero hallucinations, strict constraint compliance, and negative prompt respect.
Time-to-first-token (TTFT) and throughput tokens per second.
Token pricing economics relative to intelligence quality and output volume.
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RECOMMENDED AGENT SKILLS FOR Step 3.7 Flash
boardroom
/cs:boardroom <brief> — 6-phase multi-role deliberation across the C-suite with Phase 2 isolation, critic pre-screen, and synthesis. Outputs a board memo. Use when a decision spans multiple executive domains — e.g. a pricing change touching finance, positioning, and product, or a raise-vs-cut runway call.
FREQUENTLY ASKED QUESTIONS ABOUT Step 3.7 Flash
What are the input and output token prices for Step 3.7 Flash?+
Step 3.7 Flash costs $0.20 per 1M input tokens and $1.15 per 1M output tokens. Cached input reads cost $0.04 per 1M tokens.
Does Step 3.7 Flash support tool calling and agent execution?+
Yes, Step 3.7 Flash natively supports tool calling, parallel function execution, and structured agent workflows.
What is the context window of Step 3.7 Flash?+
Step 3.7 Flash features an active context window of 262,144 tokens with a maximum single-turn output of 230,400 tokens.
What AI Agent Skills work best with Step 3.7 Flash?+
Because Step 3.7 Flash is optimized for agentic tool calling and multimodal vision and code reasoning, it pairs well with Agent Skills like Boardroom, SEO Audit, and UI/UX Pro Max.