Subscription rates

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Plans

Included usage is dollar-denominated model usage — it pays for the same per-token rates as credits, but it comes from your subscription balance instead of prepaid credits. It is tracked separately from credits and does not roll over.

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Live per-model discounts

While you’re spending from included subscription usage, each model also has a live discount based on current supply. The discount applies to how much included usage a request consumes: Discounts refresh approximately every 10 minutes and are locked in when a request starts. They are not guaranteed to stay the same between requests. Stacked with included usage, Max can deliver up to 12× the model usage per subscription dollar versus credits: $100 buys $300 of included usage (3×), and a model at a 75% subscription discount stretches that 4× further. Pro delivers up to 10× at its 2.5× included-usage multiplier.

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Example

A Max subscriber pays $100/month and receives $300 of included model usage. If GLM is currently 75% off for subscriptions, a request that would normally use $1.00 of model usage uses $0.25 from the subscription balance.

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Where to check current discounts

• Billing page — the “Live subscription discounts” panel.
• Model cards and model detail pages — shown on personal accounts.
• Playground — the model picker when you’re in Subscription mode.
• Public status endpoint — GET /status returns the top-level current_subscription_supply_updated_at plus per-model fields:
  • Top-level:
    • current_subscription_supply_updated_at
  • Per model:
    • current_subscription_supply_state
    • current_subscription_discount_percent
    • current_subscription_credit_multiplier

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Usage controls

Included usage is constrained by the monthly billing period plus two reset windows. The 5-hour and 7-day windows start when your first subscription-funded request is admitted after no active window exists, then reset at the shown reset time. All windows are visible in the billing page usage panel. If a subscription window is exhausted, subscription-funded requests are blocked until that window resets. API keys with credit fallback enabled can continue on prepaid credits.

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Using subscriptions from the API

Personal API keys can be set to one of two billing modes:

• Credits — requests draw from prepaid credits.
• Subscription — requests draw from your subscription’s included usage at the current live discount.

Subscription keys can optionally fall back to prepaid credits when subscription usage is unavailable. Fallback covers:

• Monthly included usage exhausted
• 5-hour or 7-day usage window exhausted

The Playground does not fall back automatically. Switch between Credits and Subscription mode manually in the playground UI.

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Managing your plan

• Upgrades are requested in Lilac and confirmed through Stripe. The new plan takes effect once Stripe confirms, and the price difference is pro-rated for the remainder of the current billing period. Included usage is recalculated at the new plan’s included-usage multiplier (Basic 2×, Pro 2.5×, Max 3×) on what you’ve paid, minus what you’ve already used. For example: on Basic you pay $10 and get $20 of included usage. Upgrade to Pro halfway through the month for an extra $20 and your included usage becomes 2.5 × $30 = $75, minus anything already spent.
• Downgrades generally take effect at the next billing period.
• Payment methods, invoices, and cancellation are handled through the Stripe customer portal linked from the billing page.

Subscriptions require Stripe-supported recurring payment methods. Crypto and other one-time-only payment methods may be available for prepaid credits, but not for recurring subscriptions.

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FAQ

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Related

• API Keys
• Pricing
• Usage & Billing
• Status endpoint