PickLLMOpenAI Model Results Comparison Tool

Compare responses from different OpenAI models side by side. Enter your prompt and see how each model responds.

Prompt Input Section

Enter a prompt to compare responses across multiple OpenAI models
OpenAI API key required to use the comparison tool
Run your prompt to evaluate the total cost

Advanced Settings

Model Comparison Results

gpt-4.1

Ready to run

gpt-4.1-mini

Ready to run

gpt-4.1-nano

Ready to run

gpt-4o

Ready to run

gpt-4o-mini

Ready to run

o1

Ready to run

o4-mini

Ready to run

o3-mini

Ready to run

o1-mini

Ready to run

🧠 FAQ: PickLLM OpenAI Model Results Comparison

What is PickLLM?

PickLLM is a single-page app that lets you compare responses from multiple OpenAI models side by side. You enter a prompt, and the selected models generate responses in parallel.

To use the tool, you must provide your own OpenAI API key. Your key is stored only in your browser's local storage and is never saved on any server. Requests are proxied through Next.js API routes for security, but your key is only used to make direct requests to OpenAI servers.

What models are supported?

By default, PickLLM loads the following 9 models:

'gpt-4.1',
'gpt-4.1-mini',
'gpt-4.1-nano',
'gpt-4o',
'gpt-4o-mini',
'o1',
'o4-mini',
'o3-mini',
'o1-mini'

However, you can fully customize the list in Advanced Settings — add or remove models as needed.

Can I compare multiple models at once?

Yes. There is no hardcoded limit. The default setup compares 9 models, but you can freely add or remove any number of models depending on your needs.

What advanced settings are available?

You can optionally set per-model configuration:

  • Temperature (0–2): Controls response randomness.
  • Top P (0–1): Controls nucleus sampling.
  • Max Tokens (default 1024): Caps the response length.

Only some models support temperature and top_p — others will ignore those values.

Which models support advanced settings?

The following models support both temperature and top_p:

['gpt-4.1', 'gpt-4.1-mini', 'gpt-4.1-nano', 'gpt-4o', 'gpt-4o-mini']

Other models (e.g., o1, o3-mini, o4-mini) only support max_completion_tokens.

Is my API key safe?

Yes. Your API key is stored only in your browser's local storage and is never saved on any server. All requests are proxied through Next.js API routes for security, but your key is only used to make direct requests to OpenAI servers.

Who is PickLLM for?

  • Prompt engineers testing variations
  • AI product teams benchmarking models
  • Developers exploring behavior differences
  • Hobbyists experimenting with prompt design