4 free browser-based AI tools — count tokens for any LLM, track prompt costs across models, detect AI-generated content, and analyse short-form video hooks. All tools run locally in your browser with no upload, no login, and no cost.
Count tokens for GPT, Claude, Gemini, Mistral, and Llama models instantly
Estimate AI prompt token usage, track cost, and manage prompt history locally with full privacy.
Analyze your YouTube Shorts or Instagram Reels hook before posting. Check swipe risk, hook strength, and get improvement tips using AI.
Check whether your content sounds AI-written or human-written. This free AI content detector analyzes sentence patterns, repetition, and tone to help bloggers, students, and SEO writers avoid AI detection issues.
Every call to an AI API like OpenAI, Anthropic, or Google charges by token — not by word, not by character, and not by request. Without knowing your token count, you cannot predict costs, optimise prompts for length, or stay within a model's context window limit. The LLM Token Counter lets you paste any text and instantly see the exact token count for GPT-4o, Claude, and Gemini before making an API call.
| Model | Context Window | Input Price (per 1M tokens) | Output Price (per 1M tokens) |
|---|---|---|---|
| GPT-4o | 128K tokens | $2.50 | $10.00 |
| GPT-4o mini | 128K tokens | $0.15 | $0.60 |
| Claude 3.5 Sonnet | 200K tokens | $3.00 | $15.00 |
| Claude 3 Haiku | 200K tokens | $0.25 | $1.25 |
| Gemini 1.5 Pro | 1M tokens | $1.25 | $5.00 |
| Gemini 1.5 Flash | 1M tokens | $0.075 | $0.30 |
Prices approximate as of early 2026. Use the AI Prompt Cost Tracker for up-to-date calculations.
Paste any text and instantly see the token count for GPT-4o (tiktoken cl100k_base), Claude 3.5, and Gemini 1.5. Shows character count, word count, token count, and percentage of each model's context window used. Essential for developers building AI applications and anyone working with long documents or system prompts.
Enter your prompt and expected output, select the model, and see the exact dollar cost for that API call. Track multiple sessions to see cumulative spending. Compare costs across GPT-4o, Claude, and Gemini side by side. Useful for budgeting AI API usage in applications and for freelancers billing clients for AI-assisted work.
Paste any text to get a probability score for AI vs human authorship. The detector analyses sentence-level perplexity patterns, burstiness (variation in sentence complexity), and stylistic consistency — all browser-based with no upload. Useful for educators, editors, content managers, and anyone verifying content authenticity before publishing.
Paste the first 1–3 sentences of your short-form video script and the tool scores it for swipe risk — the probability a viewer keeps watching or swipes away. Identifies weak hook patterns (generic openers, vague promises) and suggests improvements based on high-performing hook formulas for YouTube Shorts, Instagram Reels, and TikTok.
Count tokens to optimise prompt length, stay within context limits, and estimate API costs before deployment.
Analyse video hooks for swipe risk, detect AI-generated content in drafts, and improve short-form performance.
Track AI API costs per project to accurately bill clients for AI-assisted content, coding, or research work.
Detect AI-generated student submissions with the content detector — runs privately in the browser.
Budget AI API usage early, compare model costs, and choose the right model for your use case and budget.
Optimise ad copy hooks for short-form video campaigns, and verify AI-assisted content before publishing.
A token is the smallest unit of text that a language model processes. It is not exactly a word — tokens can be whole words, word fragments, punctuation marks, or even single characters, depending on the model's tokenizer. On average, 1 token equals about 4 characters or 0.75 words in English. Knowing your token count is important because AI APIs charge per token and models have context window limits.
Use the LLM Token Counter tool. Paste your text and select the model family. The tool uses the exact tokenizer for each model: tiktoken (cl100k_base) for GPT-4 and GPT-4o, a character-ratio estimate for Claude, and SentencePiece for Gemini. It shows the token count, character count, and estimated API cost for each model family.
Use the AI Prompt Cost Tracker. Enter your input and output text, select the model (GPT-4o, Claude 3.5 Sonnet, Gemini 1.5 Pro, etc.), and the tool shows the exact cost based on current per-token pricing. You can also track multiple sessions and see cumulative cost over time.
Yes. The AI Content Detector analyses text for patterns common in AI-generated writing — repetitive sentence structure, unusually consistent tone, low perplexity, and burstiness. It provides a probability score for AI vs human authorship. Note that no detector is 100% accurate, especially for short texts or text that has been heavily edited after AI generation.
A hook is the first 1–3 seconds of a short-form video (Reels, Shorts, TikTok) that determines whether viewers swipe away or keep watching. A strong hook creates curiosity, promises value, or triggers an emotional response. The Shorts & Reels Hook Analyzer evaluates your hook text for swipe risk — identifying weak openers and suggesting improvements.
Context window limits as of 2026: GPT-4o supports 128,000 tokens. Claude 3.5 Sonnet supports 200,000 tokens. Gemini 1.5 Pro supports 1,000,000 tokens (1 million tokens). The LLM Token Counter shows your current token count against these limits so you can see how much of the context window your prompt is using.
Yes. All AI tools on DDaverse are completely free with no usage limits, no account required, and no subscription. The token counter and cost tracker run locally in your browser — your text is never sent to any server.
No. The AI Content Detector on DDaverse runs entirely in your browser using JavaScript. Your text is never uploaded to any server, making it safe to use for confidential documents, client work, or sensitive content.
For OpenAI models (GPT-4o, GPT-4, GPT-3.5), the counter uses the official tiktoken cl100k_base encoding, so the count is exact. For Claude, the count uses a calibrated character-ratio approximation and may differ by 1–3% from Anthropic's actual tokenizer. For Gemini, the approximation is within 5% for typical English text.
Yes. The AI Prompt Cost Tracker shows cost estimates across multiple models simultaneously, so you can see whether GPT-4o, Claude 3.5 Sonnet, or Gemini 1.5 Pro is cheaper for your specific prompt and output length. Pricing is updated regularly based on official API pricing pages.
Effective hooks typically: open with a question or surprising statement, promise a specific outcome ('How I saved ₹50,000 in 3 months'), create FOMO or urgency, address a pain point directly, or start mid-action. Weak hooks start with 'In this video...' or 'Today I want to talk about...'. The Shorts Hook Analyzer scores your hook and identifies which category it falls into.
Yes. All AI tools are mobile-responsive and work on iOS and Android browsers. The token counter and cost tracker are especially useful on mobile for quickly checking prompt sizes before sending API requests.
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