Pricing & Credits

Documentation Index

Fetch the complete documentation index at: https://docs.twill.ai/llms.txt

Use this file to discover all available pages before exploring further.

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Plans

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How credits work

1 credit = $1 of AI compute at cost. Credits cover the tokens your coding agents consume while working on tasks.

• Free tier: hard cap at your included credits. Once you hit the limit, tasks cannot be created until the next billing period.
• Pro and Max tiers: you can optionally set an overage limit in Settings > Billing. If no limit is set, there is no hard cap and you are billed for usage beyond your included credits.
• BYOK (Max tier): when you bring your own API keys, you pay the AI provider directly. BYOK usage is tracked in Twill for visibility but is not billed through Twill.

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What counts as usage

Credits are consumed by the AI tokens used during task execution — planning, implementation, verification, and CI auto-fix steps. Sandbox compute (the container your code runs in) is included and does not consume credits separately.

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Billing period

Credits reset monthly on the anniversary of your subscription start date. Unused credits do not roll over.

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Overages

On Pro and Max tiers, you can configure an overage limit from Settings > Billing. This sets a maximum dollar amount of additional spend beyond your included credits. If you prefer no cap, leave the overage limit unset.

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Open source

Open-source projects can use Twill for free. Contact the team via the website or Slack to apply.