Does using tool calling on the Model API cost extra?

There's no separate charge for tool calling. Tool definitions you send and tool results you return are text in the request, so they count as input tokens; the model's tool calls count as output tokens. A request can include up to 64 tools.

Good to know#

• Flash $1.60/$3.40, Max $1.80/$3.80, Heavy $2.00/$4.40 per 1M tokens in/out.
• The usage in each Model API response is what's billed.
• Logs shows the cost of every metered request.

Learn more#

• Rates
• Models
• Choose a tier

Still need help?#

• General support: support@clatterlabs.com or team@clatterlabs.xyz
• Infrastructure questions, or permanent deletion of your data (your whole account or one service): infrastructure@clatterlabs.xyz

We usually reply within the first hour, and always within 24 hours. A full support team is with you.