Estimates assume a typical exchange of about 600 tokens in and 400 tokens out per message (roughly 450 words in, 300 words out). Per-token prices come from OpenRouter and are cached and refreshed about once a week, so they are recent but not real-time. Actual cost varies by model, context length, and usage, so figures show a feel for value rather than a guarantee. Boon is independent; model names belong to their owners.