LLM Cost Estimation and Comparison

LLM Cost Estimation and Comparison

Calculate token costs and compare up to 4 models side-by-side.

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Your Prompt

Input Tokens

Expected length of AI's answer

Paste your prompt here

Approx. Tokens: 0

Cost Calculation

Search & Select Model

Input Cost $0.00

Output Cost $0.00

Total Cost $0.00

Compare Models (up to 4)

Model	Input / 1M	Output / 1M	Context	Input Cost	Output Cost	Total Cost	Action

Available Models

Model	Input / 1M	Output / 1M	Context

Frequently Asked Questions

What are tokens in LLM APIs?

Tokens are small pieces of text that AI models process. Roughly 1 token = 4 characters or 0.75 words in English. Your prompt uses input tokens; the AI’s reply uses output tokens.

Why is output usually more expensive than input?

Output tokens are generated one by one (sequential), while input tokens are processed all at once (parallel). This makes output 2–5× more expensive depending on the model.

How accurate is the token counter?

It uses a fast character-based approximation (~4 characters = 1 token). It’s accurate enough for cost estimation. Official SDKs give exact counts, but this is very close for most English text.

Where does the pricing data come from?

It is loaded live from LiteLLM’s community-maintained pricing file. Prices are updated automatically whenever LiteLLM updates their data (usually weekly).

Can I use this tool offline?

Yes! After the first load, the tool works completely offline. Only pricing data needs internet on first visit (it caches afterward).

How do I compare multiple models?

Search and select a model, click “Add to Compare”. You can add up to 4 models. Use the × button to remove any model and add a different one.

Is my data private?

Yes. Everything runs in your browser. No data is sent to any server. Your prompts and calculations stay 100% private.

Check respective LLM websites for exact pricing and details. This is an estimation tool and may not reflect real-time changes or discounts. Always verify before making decisions.

How I Built an AI Passport Photo Maker (and What It Taught Me About AI, Cloud & DevOps)

AI is rapidly moving from hype to real-world utility. Instead of just writing about it, I wanted to build something practical. That’s how I ended up creating an AI-powered passport photo maker a simple tool that solves a common problem with a clean, user-first approach.

The Problem I Wanted to Solve

Getting passport photos is surprisingly inconvenient. In Japan, photo booths are widely available but expensive. Many online tools either lock downloads behind paywalls or raise privacy concerns by asking for unnecessary permissions and sketchy websites asking for credit card details.

This made me think: Can I build a free, fast, and privacy-friendly alternative using AI?

The Approach: Keep It Simple, Keep It Fast

Instead of over-engineering, I focused on a lightweight architecture:

• AI for background removal.

• Browser-based processing for cropping and resizing

• Predefined layouts for passport compliance

The key decision was to avoid building my own AI model. Instead, I used existing APIs and focused on integrating them efficiently into the user workflow.

This approach helped me:

• Reduce development time

• Avoid infrastructure overhead

• Deliver immediate value

From Netlify to Blogger: A Strategic Shift

Initially, I deployed the tool on Netlify. It worked great from a technical standpoint. It's fast, scalable, and easy to deploy.

However, I later moved the tool directly into Blogger.

Why?

• SEO advantage: Keeping everything under one domain improved discoverability

• User journey: Blog readers can directly access the tool without switching domains

This shift made me realize something important:

• Distribution and discoverability often matter more than infrastructure perfection.

Where AI Actually Helped

The most interesting part was not the AI itself, but how it was used:

• Automatically removing complex backgrounds

• Standardizing images into passport formats

• Reducing manual editing effort to near zero

This reinforced a key idea:

• AI is most powerful when it removes friction from simple tasks.

DevOps Mindset in a “Simple” Project

Even though this is not a large-scale system, DevOps thinking still applied:

• Designing for minimal backend dependency

• Optimizing for performance and load time

• Structuring the project for easy updates and iteration

After moving to Blogger, I lost automated CI/CD, but gained tighter integration with my content platform. It became a trade-off between automation and control vs reach and simplicity.

Key Learnings

• AI is an enabler, not the product
  The real value comes from solving user problems, not showcasing AI.

• Frontend can do more than you think
  Modern browsers are powerful enough for many “AI-like” experiences.

• Don’t overbuild early
  Start simple, validate, then scale.

Building this tool was a great reminder that you don’t need complex systems to create meaningful AI products. With the right balance of AI, cloud thinking, and DevOps principles, even a small idea can turn into something genuinely useful.

📸

AI Powered Passport Photo Maker

1. Upload photo

2. Exact final photo size (after cutting)

Width (mm)

Height (mm)

Each tile and photo image are the exact entered size. Gaps are only the space between tiles.

3. Edit photo (crop + guidelines)

Removing Background… ✨

Drag to reposition inside frame. Grid shows alignment guidelines. Zoom to crop tighter.

1.00x

100

100

100

0

Unit mm Inches

Print DPI 150 300 (recommended) 600

4. Print Paper size Custom (edit below) 4"x6" 10x15cm L 89x127mm 2L 127x178mm Hagaki 100x148mm 5"x7" 13x18cm A4 Letter 8.5"x11"

Paper Width (mm)

Paper Height (mm)

PREVIEW (screen scaled)

• Each cut photo = exact entered size
• Use PDF for home printing
• Use JPG for convenience store photo machines.

Create professional passport photos from the comfort of your home with this free AI-powered passport photo maker. Whether you’re applying for a new passport, visa, or ID, this tool helps you generate correctly sized photos in seconds without the high cost of photo studios or kiosks. Everything runs directly in your browser, so your images stay private and are never uploaded to any server. The tool uses power of Artificial Intelligence to ensure high-quality results. You can download your image as a ready-to-print 4×6 template, which works perfectly at popular photo printing locations such as Walmart, CVS, Walgreens, Boots, 711, FamilyMart, Lawson or any local print shop. This means you can get multiple passport photos printed for a fraction of the usual price. It’s especially useful if you need quick results or want full control over your photo. Simply upload an image, adjust it if needed, and download instantly no-signup, no hidden fees. The tool supports multiple country formats, making it ideal for international users. By using this passport photo maker, you save time, money, and effort while still meeting official photo requirements. Try it now and create high-quality passport photos anytime, anywhere.

Free tool – passport / visa / ID photos with safe spacing

Frequently Asked Questions

What makes this tool different from photo studios? ▼

This AI-powered tool lets you create professional passport photos instantly from home without paying $15-30 at photo studios or kiosks. Everything happens in your browser—no uploads, no servers, just pure local processing. You maintain complete control and privacy.

Are my photos stored or shared with anyone? ▼

No. All processing happens locally in your browser. Your photos are never uploaded to any server, never stored, and never shared with anyone. Once you close the tab or refresh the page, everything is gone from memory.

What countries' passport requirements does this support? ▼

This tool supports multiple standard formats: US passports (2x2"), EU visas (35x45mm), Japanese passports, and many others. You can also enter custom dimensions for any country's specific requirements. The tool ensures proper spacing and alignment for all official photo specifications.

Can I use the AI background removal feature? ▼

Yes! The tool includes a built-in AI background removal feature. Simply upload your photo, click "Remove Background with AI," and the tool will automatically extract you from any background and replace it with a professional white/plain background as required by official standards.

Should I download as PDF or JPG? ▼

PDF: Use this for home/office printing. Maintains exact dimensions and quality for personal printers.
JPG: Use this at convenience store photo machines (CVS, Walgreens, Walmart, 711, FamilyMart, etc.). These machines accept digital files and print directly to standard photo paper.

What DPI should I select for printing? ▼

300 DPI (recommended): Industry standard for professional photo prints. Delivers crisp, sharp quality suitable for all official documents.
150 DPI: Lower file size, acceptable for casual use but may show slight quality loss on larger prints.
600 DPI: Highest quality, larger file size, ideal for quality-critical applications.

Can I edit the photo after uploading? ▼

Absolutely! The tool provides comprehensive editing controls including zoom, brightness, contrast, saturation, and sharpness. You can also rotate and flip the image. All edits are non-destructive and can be reset at any time with the "Reset Edit Controls" button.

What file formats can I upload? ▼

You can upload any standard image format: JPEG, PNG, WebP, GIF, and more. The tool automatically processes the image and prepares it for printing. Most smartphone photos work perfectly.

Is there a size limit for uploaded photos? ▼

No hard size limit—the tool handles photos of various resolutions. Browser memory is the only real constraint. Typical smartphone photos (5-12 MB) process instantly without any issues.