CHATGPT TOKEN COUNTER

ChatGPT Token Counter

ChatGPT reads and writes in tokens, not characters. Paste your message, essay, or document below to see exactly how many tokens it uses with the same tokenizer ChatGPT models use, and whether it fits in the conversation context window.

PROMPT

Count ChatGPT tokens live.

Model Expected output

Tokens

Words

Characters

Input cost

$0.00

Output cost

$0.00

Total request

$0.00

1,047,576 token context window Exact tokenizer 0%

Need optimization signals, a heatmap, monthly projections, or cross-provider comparison? Open the full analyzer.

How ChatGPT tokenization works

ChatGPT runs on OpenAI GPT models, so its tokenization is identical to the OpenAI API: about 4 English characters or 0.75 words per token.

Long conversations matter: ChatGPT re-reads recent conversation history on every turn, so earlier messages consume context window alongside your new message.

If a pasted document exceeds the context window, ChatGPT silently loses the oldest content. Counting first tells you whether to split the document.

Everything you paste here stays in your browser, which makes this safer than testing sensitive text inside ChatGPT itself.

ChatGPT models and current pricing

GPT-5.5 Token Counter

1,047,576 token context. $5.00 in / $30.00 out per 1M tokens.

GPT-5.5 Pro Token Counter

1,047,576 token context. $30.00 in / $180.00 out per 1M tokens.

GPT-5.4 Token Counter

1,047,576 token context. $2.50 in / $15.00 out per 1M tokens.

GPT-5.4 mini Token Counter

1,047,576 token context. $0.75 in / $4.50 out per 1M tokens.

GPT-5.4 nano Token Counter

1,047,576 token context. $0.20 in / $1.25 out per 1M tokens.

GPT-5.4 Pro Token Counter

1,047,576 token context. $30.00 in / $180.00 out per 1M tokens.

GPT-5.2 Token Counter

400,000 token context. $1.75 in / $14.00 out per 1M tokens.

GPT-5.2 Pro Token Counter

400,000 token context. $21.00 in / $168.00 out per 1M tokens.

GPT-5.1 Token Counter

400,000 token context. $1.25 in / $10.00 out per 1M tokens.

GPT-5 Token Counter

400,000 token context. $1.25 in / $10.00 out per 1M tokens.

GPT-5 mini Token Counter

400,000 token context. $0.25 in / $2.00 out per 1M tokens.

GPT-5 nano Token Counter

400,000 token context. $0.05 in / $0.40 out per 1M tokens.

GPT-5 Pro Token Counter

400,000 token context. $15.00 in / $120.00 out per 1M tokens.

GPT-4.1 Token Counter

1,047,576 token context. $2.00 in / $8.00 out per 1M tokens.

GPT-4.1 mini Token Counter

1,047,576 token context. $0.40 in / $1.60 out per 1M tokens.

GPT-4.1 nano Token Counter

1,047,576 token context. $0.10 in / $0.40 out per 1M tokens.

GPT-4o Token Counter

128,000 token context. $2.50 in / $10.00 out per 1M tokens.

GPT-4o mini Token Counter

128,000 token context. $0.15 in / $0.60 out per 1M tokens.

o3 Token Counter

200,000 token context. $2.00 in / $8.00 out per 1M tokens.

o4-mini Token Counter

200,000 token context. $1.10 in / $4.40 out per 1M tokens.

Pricing refreshed 2026-07-01 from official provider sources. Compare against other providers on the LLM pricing table or browse the full model directory.

FAQ

ChatGPT token counter FAQ

How many tokens can I paste into ChatGPT?

It depends on the model and plan, but current GPT-5 generation models offer context windows from 400,000 to over 1 million tokens via the API, while the ChatGPT app exposes smaller effective limits per plan. Use the counter above to measure your text, then compare it with the context bar for the selected model.

Why did ChatGPT cut off or forget part of my conversation?

The conversation exceeded the model context window, so the oldest messages were dropped. Token-count long pastes before sending, and summarize earlier turns into a short recap to keep important details inside the window.

Is a ChatGPT token the same as a word?

No. A token is usually a piece of a word. As a rule of thumb, 1,000 tokens is about 750 English words. The exact ratio depends on the language and formatting, which is why this page counts with the real tokenizer instead of estimating from word count.