Which AI Is Most Accurate for Financial Analysis? ChatGPT vs Claude vs Gemini vs Vinley? 

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Vinley version 1.4.1a was benchmarked against OpenAI ChatGPT, Anthropic Claude, Google Gemini, xAI Grok, Alibaba Qwen, Moonshot Kimi and DeepSeek. Testing was conducted in fresh, isolated sessions on and around August 22, 2026.

Across 31 individually graded tests, Vinley achieved the highest overall score at 99.4%, ahead of OpenAI ChatGPT at 87.5% and xAI Grok at 85.8%.
 

Data freshness was the largest differentiator. Vinley was the only model to return current June 30, 2026 balance-sheet data for both Reliance Industries and Mitsubishi Corporation. Technical charting was the second major differentiator: Vinley produced the requested Nike price chart with RSI and ADX natively, while only one general-purpose model, Moonshot Kimi, also produced a usable and accurate chart.

The report concludes that purpose-built financial specialisation continued to provide a measurable advantage on concrete, data-grounded investor tasks, from reading a balance sheet to producing a usable technical chart.