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AI Token Counter — Paste Text & List API Cost

Rough token counts and list-price comparisons for a single paste. Educational heuristic — not tiktoken accuracy.

CLIENT-ONLY • NO DATA SENT

Paste text below. We show a word-based token guess (~1 token ≈ 0.75 English words) and list-price dollars for your paste at public API $/1M — not OpenAI tiktoken accuracy. All math runs in your browser; we never receive your paste. Rates as of .

Heuristic: tokens ≈ ceil(word count ÷ 0.75). Rule-of-thumb B (Latin-heavy): ceil(characters ÷ 4) — shown as “Char÷4” below; not used for $ unless you add an advanced toggle later.

Shortcuts: Ctrl+Enter (Windows/Linux) or Cmd+Enter (Mac) copies estimated tokens.

Counts

Words0
Est. tokens0
Char÷40
Characters0
Lines0
UTF-8 bytes0
Reading time0 min~200 wpm English

Why your bill can be higher

  • Hidden system prompts, tool definitions, and JSON the model never shows you.
  • Retries, multi-step agents, and long tool results.
  • Cached-input discounts (or lack thereof) — see the AI cost calculator for monthly + cache % ideas.
  • Platform credits vs caps — usage-credit products bill differently from hard monthly limits; our Manus AI credits and monthly plan pricing for 2026 breakdown pairs well with these per-token estimates.

Monthly totals: cloudaxisai.github.io/ai-cost-calculator · cloudybot.ai/pricing for CloudyBot caps.

Optional reply cost

Default is prompt (input) tokens only. Model reply using either fixed output tokens or % of input — never both.

0%

List-price cost for this paste

Model Prompt $ Output $ Total $

Mini glossary
  • Est. tokens — word-split heuristic for English-ish prose; production bills use each vendor’s tokenizer.
  • Prompt $ — estimated input tokens × public input $/1M.
  • Output $ — estimated reply tokens × public output $/1M (zero if “prompt only”).
  • Total $ — prompt + output for this single paste scenario (not a monthly subscription quote).
What we did not model
  • CJK / mixed-script tokenization, images/audio, tool-use overhead, batch discounts, enterprise deals, tax, FX.
  • Exact context-window fit — API tiers vary.

Sources

    Token estimates for agent prompts

    Agent runs include system prompts, tool definitions, and browser context you never see in chat. Use this counter on representative prompt text, then multiply by expected steps in the Agent Run Cost Estimator.

    Frequently asked questions

    Token counts use a word-based heuristic (roughly four characters per token) suitable for planning — not vendor tiktoken billing accuracy. Dollar estimates apply public list prices per million tokens.
    No. Pasted text never leaves your device.
    No — it uses a word-based heuristic suitable for planning. For billing truth, check actual usage in CloudAxis after a pilot run.
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