Free Tool
Prompt Complexity Analyzer
Paste a prompt, inspect the load it creates, and get model recommendations matched to complexity, context needs, and budget posture.
Live heuristics 32 tracked models No sign-up
Prompt intake
Analyze before you send
The analyzer looks for context load, reasoning depth, format constraints, multimodal cues, and other signals that change which model tier makes sense.
0 chars 0 tokens est.
This is a practical heuristic, not a tokenizer. It is designed to help you choose a sensible model class and tighten weak prompts before you spend tokens.
Diagnostic readout
Paste a prompt and run the analyzer.
You'll get a complexity score, context estimate, improvement tips, and model matches from the site catalog.