Context Wire

Approximate before tokenizing

Plan an LLM context budget

See a range first, then verify the final input with the tokenizer used by your provider and model.

Local range estimate

Context Budget Calculator

Reserve space for instructions, history, output, and a safety margin. Word and code conversions are ranges, not tokenizer results.

Window and fixed budget
Document estimate

For words, enter tokens per word. For code, enter the low and high characters per token. Direct token mode ignores both coefficients.

Conservative fit estimate

Document tokens
44,000–60,000
Fixed budget
44,800
Total used
88,800–104,800
Remaining
23,200–39,200
Over budget by
0
Suggested document splits
1
Approximate words
29,333–54,545
Approximate pages
58.7–109.1

This estimate fits at the conservative end. Confirm exact tokens with the relevant provider tokenizer.