Kimi K3 Token Calculator

Moonshot Kimi (月之暗面) · calibrated estimate · prices verified 2 October 2026

The Kimi K3 token calculator below counts Kimi K3 tokens and prices them at Moonshot Kimi (月之暗面)'s published rates — $7.00 per 1M input tokens and $14.00 per 1M output tokens, last verified 2 October 2026. Moonshot Kimi (月之暗面) does not publish its tokenizer, so the count is a calibrated estimate — stated plainly on every table here rather than dressed up as exact. Use it to budget and to compare Kimi K3 against other models.

Open the full Kimi K3 counter with the whole pricing table →

256K tokenscontext window
256,000max input tokens
~196,923≈ English words that fit
$7.00per 1M input tokens
$14.00per 1M output tokens
±5–10%count accuracy

Kimi K3 token cost at a glance

VolumeApprox. sizeInput costOutput cost
1K tokens≈ 769 words$0.007$0.014
10K tokens≈ 7,692 words$0.07$0.14
100K tokens≈ 76,923 words$0.7$1.40
1M tokens≈ 769,230 words$7.00$14.00

Figures are list prices per 1M tokens, verified 2 October 2026. Enterprise contracts and volume tiers differ — edit the rates in the calculator if your deal is not list.

How accurate is the Kimi K3 count?

Moonshot Kimi (月之暗面) does not publish a public tokenizer, so this page reports an estimate — accurate to roughly 5–10% on English text and widening on code or mixed Chinese-English prompts. Treat it as a budgeting number, not an invoice number. If you need invoice-grade counts, count with the exact OpenAI tokenizer on the main calculator and read the gap as your margin of safety.

## What fits in the Kimi K3 context window Kimi K3 accepts **256K tokens**. At roughly 1.3 tokens per English word that is about **196,923 words**, or roughly **921,600 characters** of prose. Code and CJK text consume the budget faster: a source file or a Chinese document of the same visible length can run 30–60% more tokens, so leave headroom rather than budgeting to the exact ceiling.

Kimi K3 pricing against the rest of Moonshot Kimi (月之暗面)

ModelTokenizerContextInput / 1MOutput / 1M
Kimi K3estimate256K$7.00$14.00
Kimi K2.6 (月之暗面)estimate256K$1.00$2.50
Kimi K2.5estimate128K$0.6$3.00

All Moonshot Kimi (月之暗面) models and rates →

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Kimi K3 token FAQs

How many tokens is a word in Kimi K3?

About 1.3 tokens per English word for Kimi K3 — roughly 3.6 characters per token. Code and CJK text tokenize denser, so a 256K tokens window holds fewer words than a prose estimate suggests.

What does Kimi K3 cost per 1M tokens?

Kimi K3 is listed at $7.00 per 1M input tokens and $14.00 per 1M output tokens as of 2 October 2026.

What is the Kimi K3 context window?

Kimi K3 accepts up to 256K tokens of input.

Is the Kimi K3 token count on this page exact?

No. Moonshot Kimi (月之暗面) does not expose its tokenizer, so this is a calibrated estimate at 5–10% accuracy.

Does this Kimi K3 calculator upload my text?

No. Tokenization runs entirely in your browser over JavaScript. Your text is never sent to any server, which is why the tool works with client code, unreleased prompts and internal data.