Estimate tokens and cost before sending to any LLM — GPT-4, Claude, Gemini, Llama and more
Token count updates live. Approximation: ~4 chars/token (English prose), ~3.2 chars/token (code-heavy text).
| Model | Context window | Context used | Input cost |
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Paste text above to see per-model cost and context usage.
100+ production-ready prompts for RAG, agents, extraction, and evaluation — with token budgets baked in.