StepFunActive

Step 3.5 Flash

StepFun flash lane for quick multimodal reasoning and coding assistance

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Context

262,144

Max output

262,114

Input / 1M

$0.09

Output / 1M

$0.30

Providers

01 Profile 02 Capabilities 03 Pricing 04 History 05 Usage 06 Related

01Profile

Profile

Released

2026-01-29

Last updated

2026-06-15

Knowledge cutoff

2025-01

Weights

Open

02Capabilities

Capabilities

Input

text

Output

text

Reasoning

Yes

Tool calling

Yes

Structured output

Attachments

Cache read

$0.02

Cache write

Not listed

03Pricing

Pricing across 12 providers

Per 1M tokens, USD. Sorted by input price. First-party row highlighted.

Provider	Provider model id	Input	Output	Cache read	Context
stepfunfirst-party	step-3.5-flash	$0.10	$0.30	$0.02	256,000
edenai	deepinfra/stepfun-ai/Step-3.5-Flash	$0.09	$0.30	$0.02	262,144
vercel	stepfun/step-3.5-flash	$0.09	$0.30	$0.02	262,114
empiriolabs	step-3-5-flash	$0.10	$0.30	$0.02	256,000
huggingface	stepfun-ai/Step-3.5-Flash	$0.10	$0.30	Not listed	262,144
kilo	stepfun/step-3.5-flash	$0.10	$0.30	Not listed	262,144
nano-gpt	stepfun-ai/step-3.5-flash	$0.10	$0.30	$0.05	262,144
openrouter	stepfun/step-3.5-flash	$0.10	$0.30	Not listed	262,144
siliconflow	stepfun-ai/Step-3.5-Flash	$0.10	$0.30	Not listed	262,000
siliconflow-cn	stepfun-ai/Step-3.5-Flash	$0.10	$0.30	Not listed	262,000
stepfun-ai	step-3.5-flash	$0.10	$0.30	$0.02	256,000
zenmux	stepfun/step-3.5-flash	$0.10	$0.30	Not listed	256,000

Show all 16 providers ↓

Provider	Provider model id	Input	Output	Cache read	Context
nvidia	stepfun-ai/step-3.5-flash	Not listed	Not listed	Not listed	256,000
qiniu-ai	stepfun/step-3.5-flash	Not listed	Not listed	Not listed	64,000
stepfun-ai-step-plan	step-3.5-flash	Not listed	Not listed	Not listed	256,000
stepfun-step-plan	step-3.5-flash	Not listed	Not listed	Not listed	256,000

04History

Change history

12+ recent events since 2026-01-29

2026-09-03Contextnano-gptContext window—→ 262,144

2026-09-03Contextnano-gptMax output—→ 65,536

2026-08-14Addededenaioffering→ new

2026-08-03Price cutnano-gptinput / 1M$0.20→ $0.10

2026-08-03Price cutnano-gptoutput / 1M$0.50→ $0.30

2026-08-03Contextnano-gptContext window256,000→ new

2026-08-03Contextnano-gptMax output256,000→ new

2026-08-02ContextkiloContext window256,000→ 262,144

2026-08-02ContextkiloMax output256,000→ 65,536

2026-07-10Addedempiriolabsoffering→ new

2026-07-09Removedrouting-runofferingremoved→ new

2026-06-29Price upopenrouterinput / 1M$0.09→ $0.10

05Usage

Monthly token share

Rank #17 · 2026-05

1.8%