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Prices in USD per 1M tokens, text only. Each price shows where it came from and when it was last verified. Prices marked unverified come from models.dev (community-maintained) until we read them from the provider directly.
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Step 3.5 Flash

Same open weights, served by 1 provider. Weights: stepfun-ai/Step-3.5-Flash.

stepfunOpen weights256k contextReleased 2026-01-29stepfun/step-3.5-flash

Providers

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Same weights don't always mean identical outputs: quantization, context limits and serving stacks can change quality, especially for tool calling. Prices are USD per 1M tokens; hyperscaler prices are for the reference region shown.