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Token visualizer
Paste text and see Exact OpenAI token pieces as colored chips. Hover a chip for its token ID. Compare o200k and cl100k without inventing fake Claude or Gemini boundaries.
Tokenizer · Tokenizer comparison · Tokens ↔ words · Token visualizer guide
Piece maps are Exact for these OpenAI encodings only. For Claude or Gemini counts, use tokenizer comparison (Approx labels).
- Tokens
- 24 (Exact)
- Words
- 19
- Characters
- 123
- Chars / token
- 5.13
- Pieces shown
- 24
Token pieces
Exact| # | Token ID | Text |
|---|---|---|
| 0 | 4421 | Token |
| 1 | 50159 | Calculator |
| 2 | 7398 | ·shows |
| 3 | 69026 | ·Exact |
| 4 | 7788 | ·Open |
| 5 | 17527 | AI |
| 6 | 6602 | ·token |
| 7 | 12762 | ·pieces |
| 8 | 472 | ·as |
| 9 | 40521 | ·colored |
| 10 | 31181 | ·chips |
| 11 | 813 | ·so |
| 12 | 481 | ·you |
| 13 | 665 | ·can |
| 14 | 1921 | ·see |
| 15 | 1919 | ·where |
| 16 | 6391 | ·words |
| 17 | 11 | , |
| 18 | 18608 | ·spaces |
| 19 | 11 | , |
| 20 | 326 | ·and |
| 21 | 107300 | ·punctuation |
| 22 | 12648 | ·split |
| 23 | 13 | . |
How to use this
- Pick o200k or cl100k to match the OpenAI-family model you care about.
- Paste a prompt, or try English, code, emoji, CJK, or JSON samples.
- Read the chips and hover for token IDs. Spot wasteful splits.
- Open the cost calculator or tokenizer comparison when you need spend or cross-provider counts.
Full tokenizer · Cost calculator · How LLMs split text · Exact vs fake boundaries
Related tools
Related guides
Token visualizer: see colored token pieces · How LLMs split text into tokens · tiktoken o200k / cl100k · Code and emoji tokens · Exact vs fake boundaries
Sources and references
Official documentation used for definitions, counting methods, or rate cards. Always confirm critical budgets on the provider page.
FAQ
- What is a token visualizer?
- A tool that shows how text splits into token pieces, usually as colored chips with optional token IDs. TokenCalculator’s Exact visualizer covers OpenAI o200k and cl100k encodings.
- Is the visualization Exact for Claude and Gemini?
- No. Those tokenizers are not public in the browser. We show Approx counts elsewhere and refuse fake colored boundaries so you are not misled.
- What is the difference between o200k and cl100k visualization?
- Different vocabularies and merge rules. The same string can produce different piece maps and counts. Switch encodings here to compare Exact OpenAI splits.
- How does visualization help reduce prompt cost?
- You spot wasteful patterns (verbose JSON keys, repeated whitespace, emoji-heavy fluff) before you scale volume. Then open the cost calculator with a cleaner prompt.