How much does Step 3.7 Flash cost per token?

Step 3.7 Flash is priced at $0.2 per million input tokens and $1.15 per million output tokens, per OpenRouter as of Jul 8, 2026.

What is Step 3.7 Flash's context window?

Step 3.7 Flash supports a context window of up to 256K tokens, per StepFun.

How widely used is Step 3.7 Flash?

Step 3.7 Flash accounts for about 2.5% of tracked OpenRouter coding-token volume as of Jul 7, 2026.

What are the alternatives to Step 3.7 Flash?

By OpenRouter usage, comparable models include Claude Opus 4.8, GPT-5.5, and Claude Opus 4.7. Side-by-side comparisons are linked in the alternatives table.

ModelsStepFun

Step 3.7 Flash

Name: Step 3.7 Flash
Author: StepFun

openrouter hugging face

Context

256K

tokens

Released

May 28, 2026

on OpenRouter

Usage rank

of 41 tracked models

Token share

2.5%

OpenRouter · Jul 7, 2026

Pricing

Price per million tokens

Input $/MTok

$0.2

OpenRouter · Jul 8, 2026

Output $/MTok

$1.15

OpenRouter · Jul 8, 2026

Cache read $/MTok

$0.04

OpenRouter

Current Step 3.7 Flash prices per million tokens across tracked sources.
Source	Tracked slug	In $/MTok	Out $/MTok	Cache read	Cache write	Context	Effective	Last Δ (in)
OpenRouter	stepfun/step-3.7-flash	$0.2	$1.15	$0.04	—	256K	Jul 8, 2026	—
models.dev	nano-gpt/stepfun/step-3.7-flash:thinking	$0.2	$1.15	$0.04	—	256K	Jul 8, 2026	—

latest tracked price per source · Δ = most recent input-price move within that source

2 sources tracking

Input $/MTok

Output $/MTok

per-source step lines · $/MTok

history since Jul 8, 2026

Specs

Context & availability

Step 3.7 Flash specifications.
Provider	StepFun
Context window	256K tokens
Listed on OpenRouter	May 28, 2026
Tracked price sources	OpenRouter · models.dev
Hugging Face	stepfun-ai/Step-3.7-Flash
OpenRouter slugs	stepfun/step-3.7-flash · stepfun/step-3.7-flash-20260528

source: OpenRouter model catalog + tracked price feeds

id: step-3-7-flash

Usage

Share of OpenRouter tokens

90-day · to Jul 7, 2026

source: OpenRouter model rankings · share of tracked coding-token volume

2.5% on Jul 7, 2026

Benchmarks

Benchmark results

Benchmark scores for Step 3.7 Flash.
Benchmark	Configuration	Score	Date	Source
AA Intelligence Index	stepfun/step-3.7-flash	29.7index	—	or-embedded-aa
AA Coding Index	stepfun/step-3.7-flash	37.3index	—	or-embedded-aa
AA Agentic Index	stepfun/step-3.7-flash	21.5index	—	or-embedded-aa

scores as published by each benchmark; configurations differ — compare within a row's benchmark only

Alternatives

Similar models

Alternatives to Step 3.7 Flash by OpenRouter usage-rank proximity.
#	Model	Tokens/day	7d Δ	Head-to-head
8	Claude Opus 4.8Anthropic	313.3B	19.5%	vs Step 3.7 Flash
10	GPT-5.5OpenAI	175.1B	5.1%	vs Step 3.7 Flash
7	Claude Opus 4.7Anthropic	398B	36.5%	vs Step 3.7 Flash
11	Claude Sonnet 4.6Anthropic	157.8B	25.8%	vs Step 3.7 Flash

ranked by OpenRouter usage-rank proximity

snapshot Jul 7, 2026

FAQ

Step 3.7 Flash FAQ

How much does Step 3.7 Flash cost per token?: Step 3.7 Flash is priced at $0.2 per million input tokens and $1.15 per million output tokens, per OpenRouter as of Jul 8, 2026.
What is Step 3.7 Flash's context window?: Step 3.7 Flash supports a context window of up to 256K tokens, per StepFun.
How widely used is Step 3.7 Flash?: Step 3.7 Flash accounts for about 2.5% of tracked OpenRouter coding-token volume as of Jul 7, 2026.
What are the alternatives to Step 3.7 Flash?: By OpenRouter usage, comparable models include Claude Opus 4.8, GPT-5.5, and Claude Opus 4.7. Side-by-side comparisons are linked in the alternatives table.

Alerts

Track Step 3.7 Flash

Email me when Step 3.7 Flash's price moves or it gets deprecated.