ModelCompare blog
We test AI models so you don't have to guess
We send the same prompts to many models and publish every answer and what it cost, then write up where they actually differ.
6 stories · Latest October 18, 2026
GPT vs Claude
Which AI model glazes you the most?
We texted GPT and Claude models in slang, emoji, formal English and two-word questions, then asked them to rate our work. GPT copies your emoji. Claude brings its own.
Read the story
+1.38
points GPT-6.1 Sol adds to a 1 to 10 rating when you say you wrote it
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Image models
4 of 27
scored image models worth their price; every other one has something cheaper that scores higher
You don’t need the top AI image model
We mapped 35 image models by arena quality and price, then ran the same prompts, edits and borderline content tests through the leaders and the best open-weight models.
The race
0
days an open-source model has held the top score since ChatGPT launched
Open-source AI is only four months behind
Since ChatGPT launched, a closed AI model has held the top score every day. We charted 694 models to see how far behind the open ones are, and where they lead.
The test
5
tests that still split four cheap models, out of 884 conversations
Cheap AI got good. Here's what still trips it up
We ran 884 conversations through GPT-6 Luna, Claude Haiku 5.5, GLM 5.3 Flash and Gemini 3.8 Flash. They passed almost everything. Five tests still split them.
Guide
30
models sorted by family, size and price, updated with the catalog
AI models explained: names, prices and how to choose
A plain-English guide to AI model families like Claude, GPT and Gemini, how per-token pricing turns into a real bill, and how to choose.
Same prompts, real costs
21.6×
Muse Spark Open's bill compared with GPT-6 Luna's for the same 241 prompts
Gemini Flash vs Haiku vs Luna vs Muse: same prompts, real costs
We sent the same 241 prompts to four cheap models: drawings, games, landing pages, puzzles and 40 political statements. Every answer, and what each one cost.
Run the test on your own prompt
Send one prompt to up to 6 models and see every answer, its speed and its cost.