Base input tokens
Catalog row in Vendor License Metrics · Cited
- Unit
- Other
- Aliases
- Input; MTok
- Definition
- Claude API list price column "Base input tokens", quoted per MTok: "MTok: Million tokens. $5 / MTok is $5 for every million tokens."
- Counting rules
- "Billing is based on actual monthly usage". Tool definitions and tool-use system prompts add input tokens. Claude 4.6 and later models include the full 1M-token context window at standard pricing. The pricing page notes that Claude 4.7 and later models use a tokenizer that "produces approximately 30% more tokens for the same text."
- Floors / minimums
- None. Spend capped by usage-tier monthly spend caps (Rate limits).
- Applies to products
- Claude API
- Related metrics
- Product category