How accurate are the token counts?

OpenAI counts are exact when using the matching tokenizer (o200k_base for GPT-5.x / GPT-4o, cl100k_base for legacy). Claude 4.6, Gemini 3.5, DeepSeek-V4, and Qwen3.7 costs use estimated token multipliers — always verify against your provider billing.

Is Tokened related to cryptocurrency tokens?

No. Tokened is exclusively about LLM API tokens — the units OpenAI, Anthropic, and others use to measure and charge for text processing.

When will Tokened Gateway launch?

Gateway (api.tokened.uk) is in Phase 3 of our roadmap. Join the beta waitlist to get notified when the proxy beta opens.

Is the Developer plan available to buy?

Not yet. Only the free local analyzer is live. Developer and Enterprise tiers are planned — pricing TBD. Join the waitlist for early access.

How do I integrate token counting in my app?

Use npm install gpt-tokenizer (TypeScript) or pip install tiktoken (Python). See the Integration section for copy-paste examples.

Every LLM Token Counts.

Real-time LLM prompt token analysis across models. Cut API costs. Stay GDPR & PIPL ready.

Paste a prompt below — see tokens, costs, and savings instantly. 100% local.

Join Beta Waitlist Contact for Enterprise

Input Prompt

Usage assumptions

Output tokens per call

Calls per month

Completions are billed at a higher rate — include them for a realistic figure.

Token Analysis

Analyzing tokens…

Why LLM token math matters

9Models compared

GPT-5.4, Claude 4.6, Gemini 3.5, DeepSeek-V4, Qwen3.7 and more side by side.

100%Local processing

Token counting runs in your browser. Zero server-side prompt storage.

15×Cheapest to priciest

Cost gap across models for the very same prompt — almost all of it is price per token, not token count.

$0To get started

Full demo free forever. Paid plans coming — join the waitlist.

How it works

Three steps. No signup. Your prompt stays on your device.

Paste your LLM prompt

Drop in any system prompt, RAG context, or chat template — English, 中文, or mixed.

See token breakdown

Watch real-time token blocks, total count, and Chinese inflation vs OpenAI baseline.

Compare model costs

Instant per-call cost estimates in USD, GBP, or CNY. Pick the most efficient model.

Planned: production-grade LLM infrastructure

On the roadmap — caching, routing, and compliance proxy for teams scaling beyond the free tool.

AI Cache Proxy

Deduplicate identical prompts at the edge. Cut redundant API spend by up to 40%.

Privacy Audit

PIPL, GDPR, and global PII detection before data leaves your region.

Smart Model Routing

Route by cost, latency, or compliance policy across GPT-5.4, Claude 4.6, Gemini 3.5, DeepSeek-V4, and Qwen3.7.

Who uses Tokened?

Real scenarios where token visibility saves money and reduces risk.

~40% fewer tokens vs cl100k

Chinese product teams

Chinese text costs about 1.10 tokens per character on GPT-4-era cl100k_base but only ~0.64 on o200k_base, so check which encoding you are on before assuming a tokenizer win — then compare on total cost.

Pre-launch cost audit

Startups & indie devs

Estimate monthly API spend from your actual prompts before you ship — no surprises on the billing dashboard.

GDPR & PIPL ready

EU / UK / China teams

Audit prompts locally before they hit a US-hosted model. Planned PII pre-check coming in the next release.

Quick Start

Integrate in minutes. All token counting runs locally in the browser.

3-minute integration. Runs locally — your prompts never leave the browser.

npm / TypeScript

npm install gpt-tokenizer

import { encode } from 'gpt-tokenizer'
const tokens = encode(prompt).length

Python

pip install tiktoken

import tiktoken
enc = tiktoken.get_encoding("cl100k_base")
len(enc.encode(prompt))

Guides & insights

Practical LLM token knowledge — more articles coming soon.

5 min read

How Much Do Chinese Prompts Really Cost on OpenAI? (Measured)

Measured: cl100k_base spends ~1.10 tokens per Chinese character, o200k_base only ~0.64. Where the Chinese token penalty still bites, and where the real saving comes from today.

Read article →4 min read

How Prompt Caching Can Cut LLM API Spend by 40%

Identical system prompts resent on every request are wasted spend. Learn how edge caching and Tokened Gateway solve this.

Read article →4 min read

GDPR, PIPL, and Why Local Token Analysis Matters

Sending prompts with PII to US-hosted LLMs creates compliance risk. Local-first tooling is the safest first step.

Read article →

Guides & Insights →

Roadmap

What is live today, and what is coming next.

Live now

Token calculator & cost dashboard

Real-time token highlighting (OpenAI tokenizers)
Multi-model cost comparison (GPT-5.4, Claude 4.6, Gemini 3.5, DeepSeek-V4, Qwen3.7)
Chinese token inflation insights
USD / GBP / CNY support
EN / 中文 bilingual UI

Developer plan

Pricing TBD — join the waitlist for early access

PIPL & GDPR PII pre-check
One-click prompt slimming
API access & webhooks
Priority model price updates

Future

Enterprise & Tokened Gateway

Custom pricing — contact us for enterprise

Drop-in OpenAI base URL proxy (api.tokened.uk)
Edge caching & smart model routing
SSO & team workspaces
Custom compliance rules & dedicated SLA

Pricing

100% free, no account required. All token analysis runs locally in your browser.

Available now

Free

$0forever

Unlimited local token counting
Multi-model cost comparison
EN / 中文 UI
Chinese token inflation insights

Try it now

Want paid features early?

Developer and Enterprise plans are on the roadmap — not available to purchase yet. Join the waitlist and we will notify you when they launch.

Join waitlist See the full roadmap →

Get in touch

Interested in beta access, Gateway, or enterprise plans? Email us — no forms or third-party setup required.

[email protected]

Click the address to open your email client.

Join Beta Waitlist Gateway Beta Enterprise Inquiry

FAQ

Common questions about LLM tokens, privacy, and our roadmap.

No. All token counting runs locally in your browser using the gpt-tokenizer library. We do not store, log, or transmit your prompts.

Privacy Policy

tokened.uk provides browser-local LLM token analysis tools. By default, your prompts are processed entirely in your browser and are not sent to our servers.

If you contact us by email or join our waitlist, we collect only the information you provide (e.g. email address, message content) to respond to your inquiry.

We do not sell personal data. We may use anonymized usage analytics to improve the product.

For GDPR or PIPL-related requests, contact us at the email below.

Last updated: June 2026.

Terms of Service

tokened.uk is provided "as is" for informational and developer tooling purposes. Cost estimates are approximate and based on publicly available model pricing.

Token counts for non-OpenAI models may be estimates. Always verify against your provider's billing dashboard before making production decisions.

You are responsible for ensuring your use of LLM APIs complies with applicable laws, including GDPR and PIPL.

We may update these terms. Continued use of the site constitutes acceptance of the current version.