LLM Pricing

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StepFun: Step 3.7 Flash

🇨🇳 StepFun · Step 3.7

Input Price — per million tokens
Output Price — per million tokens
Context Window 262K tokens Output limit: 230K
OpenRouter Route Price Please verify with official pricing pages
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Overview

StepFun: Step 3.7 Flash is a large language model API from StepFun, part of its Step 3.7 model family. A large 262K-token context window (≈393 pages of text) lets it take in whole books, large codebases, or lengthy transcripts in a single call. Beyond plain text it also accepts Image, Video input, so it can be applied to multimodal tasks rather than text alone. On Artificial Analysis's Intelligence Index it scores 31 (C grade), a useful proxy for its general reasoning strength relative to the other models tracked here. All prices on this page reflect OpenRouter's routed rates and are re-synced automatically every day; confirm against the provider's official pricing before committing to production.

Dimension Unit Price (USD) Price (TWD) Effective From
No pricing data yet

Provider
階躍星辰 (StepFun)
Model Family
Step 3.7
Version String
stepfun/step-3.7-flash
Status
Active
Modality
Text, Image, Video
Context Window
262,144 tokens
Output Limit
230,400 tokens

Index Metrics

Cross-domain capability indexes evaluated by Artificial Analysis — Artificial Analysis

Agentic Index 22 D Measured: 2026-08-29
Coding Index 40 B Measured: 2026-08-29
Intelligence Index 31 C Measured: 2026-08-29

Benchmark Scores

Data source: Artificial Analysis

AA-LCR 69.7% B Measured: 2026-08-29
GPQA Diamond 80.9% A Measured: 2026-08-29
HLE 21.4% A Measured: 2026-08-29
IFBench 67.3% B Measured: 2026-08-29
MMMU Pro 75.3% A Measured: 2026-08-29
Non-Hallucination 15.0% Measured: 2026-08-29
Omniscience Accuracy 25.8% Measured: 2026-08-29
SciCode 40.1% B Measured: 2026-08-29
Tau2 98.5% Measured: 2026-08-29
TerminalBench 35.6% Measured: 2026-08-29

Performance Metrics

Real-world benchmarks, updated every 72 hours by Artificial Analysis — Artificial Analysis

First Token Latency 2.7s Measured: 2026-08-29
Output Speed 91 t/s Measured: 2026-08-29
Response Time 30.2s Measured: 2026-08-29

90-Day Price Trend

Input / Output price (USD per 1M tokens)

Past 90 days of records; every price change is shown here

Date Dimension Price (USD) Source
Cached Input $0.040 OpenRouter
Output $1.15 OpenRouter
Input $0.200 OpenRouter
Cached Input $0.040 OpenRouter
Output $1.15 OpenRouter
Input $0.200 OpenRouter
Cached Input $0.040 OpenRouter
Output $1.15 OpenRouter
Input $0.200 OpenRouter
Cached Input $0.040 OpenRouter
Output $1.15 OpenRouter
Input $0.200 OpenRouter
Cached Input $0.040 OpenRouter
Output $1.15 OpenRouter
Input $0.200 OpenRouter
Cached Input $0.040 OpenRouter
Output $1.15 OpenRouter
Input $0.200 OpenRouter
Cached Input $0.040 OpenRouter
Output $1.15 OpenRouter
Input $0.200 OpenRouter
Cached Input $0.040 OpenRouter
Output $1.15 OpenRouter
Input $0.200 OpenRouter
Cached Input $0.040 OpenRouter
Output $1.15 OpenRouter
Input $0.200 OpenRouter
Cached Input $0.040 OpenRouter
Output $1.15 OpenRouter
Input $0.200 OpenRouter
Cached Input $0.040 OpenRouter
Output $1.15 OpenRouter
Input $0.200 OpenRouter
Cached Input $0.040 OpenRouter
Output $1.15 OpenRouter
Input $0.200 OpenRouter
Cached Input $0.040 OpenRouter
Output $1.15 OpenRouter
Input $0.200 OpenRouter
Cached Input $0.040 OpenRouter
Output $1.15 OpenRouter
Input $0.200 OpenRouter
Cached Input $0.040 OpenRouter
Output $1.15 OpenRouter
Input $0.200 OpenRouter
Cached Input $0.040 OpenRouter
Output $1.15 OpenRouter
Input $0.200 OpenRouter
Cached Input $0.040 OpenRouter
Output $1.15 OpenRouter

Key Insights

Key data points from this page for quick reference and citation.

  • Context window: 262,144 tokens
  • Provider: StepFun
  • Model family: Step 3.7
  • Modalities: Text, Image, Video
  • Data source: OpenRouter, updated daily