Pricing and Rate Limits

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Pricing Details

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Pricing for Multimodal Reasoning Models

For step-5-preview, the cache-miss input price includes writing new content to the cache. Output tokens include both the model’s reasoning process and final answer. See Prompt caching for details.

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Pricing for Reasoning Models

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Pricing for Vision Models

Image input is counted and billed as tokens, just like text input. By default, each image uses 169 input tokens; with detail enabled, the token count is calculated from the image size.

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Pricing for Speech Models

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Billed by token

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Billed by characters or audio duration

Text-to-speech

Audio generation and music generation

Speech recognition

For character-based billing, one Chinese character counts as one character, two English letters count as one character, and two punctuation marks count as one character.

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Pricing for Image Generation and Editing

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Pricing for Value-Added Capabilities

Value-added capabilities are billed by actual usage.

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Tiered Rate Limits

Pay-as-you-go calls to the standard Open Platform API are rate limited by tier according to the cumulative top-up amount on your account. Only cash top-ups count toward that amount; vouchers do not. Step Plan usage is governed by the monthly Credit allowance of your subscribed tier rather than by cumulative top-up. When resources reach capacity, we may temporarily adjust the limits for each tier.

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Individual Accounts

Individual accounts must complete identity verification first. Tiers are assigned by cumulative top-up amount:

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Enterprise Accounts

For the rate limit tiers available to verified enterprise accounts, contact your sales representative. Prepaid funds added to an Open Platform account count toward the cumulative top-up amount and are eligible for invoicing through the Open Platform. Postpaid billing is not tied to the cumulative top-up amount and is not invoiced through the Open Platform.