Compare AI models on your own prompts
Every AI model has a different personality. Ask the same question of Gemini 2.5 Flash and GPT-4o mini and you will often get answers that differ in depth, structure, tone and accuracy — and the only way to know which one suits your work is to see them next to each other.
This tool sends one prompt to every model you select at the same time and streams each answer into its own column. Nothing is cherry-picked: identical prompt, identical settings, so the comparison is fair.
How to compare AI models
- Select the models you want to compare — pick up to three.
- Type or paste your prompt, or tap one of the starter prompts.
- Press Compare (or ⌘/Ctrl + Enter) to send it to every selected model at once.
- Read the answers side by side, and copy whichever one you want to keep.
- Sign in for free if you want a higher daily limit.
Why compare AI models?
- Models disagree — the same prompt can get a strong answer from one model and a weak one from another, and seeing them together makes the gap obvious.
- Pick the cheapest model that works — faster, cheaper models often match the expensive ones on everyday tasks, so compare before you decide what to pay for.
- Style matters — one model writes tight and factual, another explains at length. Judge tone before committing to one for your workflow.
- Avoid lock-in — test your real prompts across providers so you can switch whenever pricing or quality changes.
- Fair by design — every model receives the identical prompt, temperature and token limit.
Compare AI Models FAQs
Which AI models can I compare?
Right now you can compare Gemini 2.5 Flash from Google and GPT-4o mini from OpenAI, with Claude from Anthropic coming soon. Each model answers the exact same prompt so the comparison is fair.
Is it free to compare AI models here?
Yes. You get a set number of free comparisons each day without signing up. Signing in is free and raises your daily limit considerably.
Is this the same as ChatGPT or the Gemini app?
No. We call the official model APIs directly — GPT-4o mini and Gemini 2.5 Flash — rather than the consumer chat apps. Answers can differ slightly from what those apps return, because the apps add their own system prompts and tools on top of the model.
Which AI model is best?
There is no single winner — it depends on the task. Gemini 2.5 Flash tends to be fast and strong at long context, while GPT-4o mini is often tighter at structured output and code. Comparing on your own prompts is the only reliable way to decide.
Do you store my prompts?
Prompts are sent to the model providers to generate a response, and may be cached briefly so repeat comparisons stay fast. Do not paste passwords, API keys or personal data.
