ANTHROPIC MODEL TOKEN COUNTER

Claude Opus 4.8 Token Counter

Count tokens for Claude Opus 4.8 and estimate API cost before you send a request. Anthropic does not publish this tokenizer, so counts are calibrated estimates for planning. Your text never leaves the browser.

PROMPT

Paste text to count Claude Opus 4.8 tokens.

Tokens

0

Words

0

Characters

0

Input cost

$0.00

Output cost

$0.00

Total request

$0.00

200,000 token context window 0%

Need optimization suggestions, a token heatmap, monthly cost projection, or a side-by-side model comparison? Open the full analyzer with Claude Opus 4.8 preselected.

Claude Opus 4.8 at a glance

Provider. Anthropic

Context window. 200,000 tokens (about 150,000 English words).

API pricing. $5.00 input / $75.00 output per 1M tokens.

Tokenizer. Not public; counts on this page are calibrated estimates.

Pricing source. Official Anthropic pricing page, checked 2026-07-01. Prices in the catalog were last refreshed 2026-07-01 and are estimates, not quotes.

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See the Claude Token Counter for all Anthropic models in one counter. Or browse the full model token counter directory and the LLM pricing comparison table to see how Claude Opus 4.8 prices against other providers.

FAQ

Claude Opus 4.8 token counter FAQ

How do I count tokens for Claude Opus 4.8?

Paste your prompt into the counter on this page. Anthropic does not publish the Claude Opus 4.8 tokenizer, so the count is a calibrated estimate based on text length, language, and structure. Treat it as planning guidance rather than an exact billing number.

How much does Claude Opus 4.8 cost per token?

Claude Opus 4.8 costs $5.00 per 1 million input tokens and $75.00 per 1 million output tokens, based on official Anthropic pricing checked 2026-07-01.

What is the context window of Claude Opus 4.8?

Claude Opus 4.8 has a context window of 200,000 tokens, which is roughly 150,000 English words of combined prompt and response. The counter above shows how much of that window your text consumes.

Is this Claude Opus 4.8 token count exact?

No. It is a clearly labeled estimate, because Anthropic has not released a public tokenizer for Claude Opus 4.8. Estimates are usually within a reasonable range for English text but can drift for code, JSON, or non-English languages.