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Evaluation of GPT-4o and GPT-4o-Mini's Vision Capabilities for Compositional Analysis from Dried Solution Drops
Deven B Dangi1, Beni B Dangi2, Oliver Steinbock1
1Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306-4390, United States.
ACS Omega
|May 19, 2025
Summary
General-use artificial intelligence (AI) tools can identify salts by analyzing their drying patterns. GPT-4o accurately classified 57% of salts, showing AI
Area of Science:
- Materials Science
- Crystallization Dynamics
- Artificial Intelligence Applications
Background:
- Drying microliter drops of salt solutions on surfaces create characteristic deposit patterns.
- These patterns result from complex crystallization and fluid motion dynamics.
Purpose of the Study:
- To evaluate the efficacy of image-enabled AI models in identifying different salts based on their drying patterns.
- To compare the performance of GPT-4o and GPT-4o mini in this classification task.
Main Methods:
- Analysis of drying patterns from 12 different salts using 200 images per salt.
- Utilized OpenAI's image-enabled language models, specifically GPT-4o and GPT-4o mini, for classification.
- Quantitative assessment of classification accuracy against known salt identities.
Main Results:
- GPT-4o achieved a 57% accurate classification rate for the 12 salts.
- This accuracy significantly surpassed random chance.
- GPT-4o demonstrated superior performance compared to GPT-4o mini in salt identification.
Conclusions:
- General-use AI tools show significant promise for the reliable identification of salts from their drying patterns.
- Image-enabled AI offers a novel, non-destructive method for material characterization.
- Further research can explore broader applications of AI in analyzing crystallization phenomena.

