AI Model Benchmark: Claude, ChatGPT, Gemini, DeepSeek, and Grok on Free-Tier Plans
Manual benchmark comparing 5 AI models (Claude Sonnet, ChatGPT default, Gemini Flash, DeepSeek unified without "Deep Thinking", and Grok Fast mode) on their free tiers, across 27 tasks spanning 5 difficulty tiers (code, reasoning, and writing), plus 15 timed speed tasks in Tier 1. Overall accuracy: Claude 27/27 (100%), DeepSeek 26/27 (96.3%), Grok 26/27 (96.3%), ChatGPT 25/27 (92.6%), Gemini 25/27 (92.6%). DeepSeek was the fastest model across all three task categories (code, reasoning, and writing). Includes full methodology, evaluation rubric, consolidated results (CSV), comparative charts, data dictionary, and documentation in both Spanish
Resource information
- Format
- zip
- Original repository
- 22986722
- DOI
- 10.5281/zenodo.22986722
- Credit basis
- Creators in Zenodo record metadata
- Access
- Open files available from the original Zenodo deposit
- Last checked
- Nov 5, 2026
- License
- cc-by-4.0
- Last record update
- Nov 5, 2026
About this resource
Manual benchmark comparing 5 AI models (Claude Sonnet, ChatGPT default, Gemini Flash, DeepSeek unified without "Deep Thinking", and Grok Fast mode) on their free tiers, across 27 tasks spanning 5 difficulty tiers (code, reasoning, and writing), plus 15 timed speed tasks in Tier 1. Overall accuracy: Claude 27/27 (100%), DeepSeek 26/27 (96.3%), Grok 26/27 (96.3%), ChatGPT 25/27 (92.6%), Gemini 25/27 (92.6%). DeepSeek was the fastest model across all three task categories (code, reasoning, and writing). Includes full methodology, evaluation rubric, consolidated results (CSV), comparative charts, data dictionary, and documentation in both Spanish and English. Third project in an open, documented series by the author (see related works: "Autonomous AI-Assisted Trading Agents" and "From Logistics to Tech").