stepfun-ai/Step-3.5-Flash

Updated Oct 4, 2026

step262k context262k max outputreleased Feb 11, 2026ReasoningTool calling

As of Oct 4, 2026, the cheapest stepfun-ai/Step-3.5-Flash API price is $0.1 per 1M input tokens (SiliconFlow) and $0.3 per 1M output tokens (SiliconFlow). stepfun-ai/Step-3.5-Flash is offered by 2 providers in the step family, reasoning enabled.

Cheapest input

$0.1

SiliconFlow

Cheapest output

$0.3

SiliconFlow

Official

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output per 1M tokens

Providers

offering this model

Spread

1.0×

max / min output

API pricing by provider

Metered per-token prices. Cheapest input and output are highlighted; † marks a context-tier surcharge. How prices are ranked.

stepfun-ai/Step-3.5-Flash API prices by provider in USD per 1M tokens, updated Oct 4, 2026
Provider	1M input	1M output	1M cache read	1M cache write	Context
SiliconFlow	Cheapest$0.1	Cheapest$0.3	—	—	262k
SiliconFlow (China)	$0.1	$0.3	—	—	262k

stepfun-ai/Step-3.5-Flash pricing FAQ

What is the cheapest stepfun-ai/Step-3.5-Flash API?

As of Oct 4, 2026, SiliconFlow has the lowest stepfun-ai/Step-3.5-Flash output price at $0.3 per 1M tokens, and SiliconFlow has the lowest input price at $0.1 per 1M tokens. Prices are metered per-token rates in USD; free tiers and subscription plans are excluded.

How many providers offer stepfun-ai/Step-3.5-Flash?

2 providers list stepfun-ai/Step-3.5-Flash on Sovyron; 2 of them sell it at a metered per-token price.

Is stepfun-ai/Step-3.5-Flash free?

No provider in the Sovyron catalog lists a free tier for stepfun-ai/Step-3.5-Flash.

What is the context window of stepfun-ai/Step-3.5-Flash?

stepfun-ai/Step-3.5-Flash supports a 262k-token context window and up to 262k output tokens.