Source-linked AI model

StepFun: Step 5 Preview

StepFun: Step 5 Preview is an AI model from stepfun with a 1,048,576-token context window, priced at $1 per 1M tokens for input. Review its sourced specs below; unavailable fields remain unavailable.

Step 5 Preview is StepFun's flagship model for agentic work, built on a sparse Mixture-of-Experts architecture (27B active / 600B total parameters). It performs strongly in software engineering and professional...

Provider

stepfun

Context window

1,048,576 tokens

Input price

$1 per 1M tokens

Output price

$2.7 per 1M tokens

Source

OpenRouter

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