
Claude AI
Jasper.ai
Gemini
Copy.ai
Perplexity.ai
Writesonic
Poe
ChatGPT is a powerful, open-source language model.

OpenAI
Gemini.com
LLM Cost Calculator
Gemini 2.5 Flash
GPT3 Crush
OpenRouter
SharpAPI
Estimate LLM API costs before you build — GPT-4, Claude, Gemini

Which is more popular?
Based on our record, ChatGPT seems to be more popular. It has been mentioned 845 times since March 2021.
Website, pricing, platforms and company facts side by side.
|
|
|
|
|---|---|---|
| Website | chat.openai.com | utilitylab.dev |
| Pricing | — | |
| Company | Startup from the United States | 2026 |
| Listed in |
In their own words, as submitted to SaaSHub.


No description of ChatGPT yet.
Free browser-based tool to estimate API costs for GPT-4, Claude, Gemini, and open-source models. Calculate prompt, completion, and monthly token expenses before writing code. No sign-up required. AI Cost Simulator helps developers and teams estimate LLM API pricing before they ship. Select from...
What each product offers, as listed by its team.


Possible disadvantages
An editorial look at what each product does well and who it suits.


Overall verdict
Why this product is good
Recommended for
No analysis of UtilityLab.dev yet.
Walkthroughs and reviews on video.
ChatGPT Review & Demo 2023 (ChatGPT Features, Benefits, Pros & Cons)
More videos
No UtilityLab.dev videos yet. You could help us improve this page by suggesting one.
How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing ChatGPT and UtilityLab.dev.
UtilityLab.dev's answer:
Most LLM cost calculators are either spreadsheets or require signing up for an API. AI Cost Simulator is a free, browser-based tool that works instantly — no account, no installation, no data upload. It supports the widest range of models (GPT-4o, Claude 3.5 Sonnet, Gemini 1.5 Pro, DeepSeek V4 Flash, and more) with both per-call and monthly volume estimates in one view.
UtilityLab.dev's answer:
Vanilla JavaScript, HTML, and CSS — no frameworks, no bundlers. All cost calculations happen client-side. The tool is deployed as a static site on Cloudflare Pages for global low-latency access.
UtilityLab.dev's answer:
It's the only zero-friction cost estimator. Competitors either lock features behind sign-up walls, only support one model family, or require you to dig through separate pricing pages. AI Cost Simulator gives you a side-by-side comparison of all major LLM providers in one page — and everything runs locally in your browser, so your pricing data never leaves your machine.
UtilityLab.dev's answer:
Developers, indie hackers, and technical founders who are evaluating LLM APIs for their next project. Also product managers and engineering leads doing cost analysis before committing to a model provider at scale.
UtilityLab.dev's answer:
When building AI-powered features, we realized every model provider publishes pricing differently — per-token, per-character, per-request — and there's no single place to compare them. Instead of bookmarking five pricing pages and building a spreadsheet, we built a dead-simple comparison tool. We open-sourced the approach and made it free so other developers don't have to waste time doing manual math.
UtilityLab.dev's answer:
Since it's a free browser tool with no sign-up, we don't track individual users. It's used by developers and teams evaluating LLM costs across startups, agencies, and enterprise engineering teams.
Share your experience with using ChatGPT and UtilityLab.dev. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


Chatgpt is the most advanced tech we had to face on the past 20 years.
AIPRM is a Chrome extension that injects a library of community-contributed prompts directly into the ChatGPT interface. Instead of typing from scratch, you browse categories — SEO, copywriting, coding, customer...
ChatGPT is not a dedicated SEO tool, but it’s widely used in SEO workflows for content ideation, outline drafting, meta description writing, and keyword brainstorming.
We have no reviews of UtilityLab.dev yet. Be the first one to post
Recommendations tracked on public social media and blogs since March 2021.


Anthropic ran Super Bowl ads that directly targeted OpenAI. The message: ChatGPT is showing you ads. Claude never will. - Source: dev.to / 6 months ago
{ "manifest_version": 3, "name": "SSE Interceptor", "version": "1.0", "permissions": ["activeTab", "storage"], "content_scripts": [ { "matches": ["https://chat.openai.com/*", "https://chatgpt.com/*"], "js":... - Source: dev.to / 7 months ago
AI suggestion textboxes are everywhere right now. From GitHub Copilot to ChatGPT, folks expect AI assistance when working with forms. Adding this capability to your forms doesn't have to be complicated. By creating a custom form control... - Source: dev.to / 9 months ago
Tracking UtilityLab.dev since Jul 2026.
When comparing ChatGPT and UtilityLab.dev, you can also consider the following products.

Claude is a next generation AI assistant built for work and trained to be safe, accurate, and secure. An AI assistant from Anthropic.
Compare Claude AI to ChatGPT or UtilityLab.dev:


The Future of Writing Meet Jasper, your AI sidekick who creates amazing content fast!
Compare Jasper.ai to ChatGPT or UtilityLab.dev:

Buy bitcoin and crypto instantly! Gemini is a simple and secure* platform to build your crypto portfolio.
Compare Gemini.com to ChatGPT or UtilityLab.dev:

Gemini, formerly known as Bard, is a generative artificial intelligence chatbot developed by Google. Based on the large language model (LLM) of the same name, it was launched in 2023 in response to the rise of OpenAI's ChatGPT.
Compare Gemini to ChatGPT or UtilityLab.dev:

Estimate and compare AI API costs across GPT, Claude, Gemini, DeepSeek, and Mistral models instantly.
Compare LLM Cost Calculator to ChatGPT or UtilityLab.dev: