DeepSeek, Gemini, GPT-5.5, Claude Compared on Cost, Speed, and Accuracy for Indian Devs

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A developer tested ten major AI models — including GPT-4 through GPT-5.5, Gemini 1.5 Pro and 2.0, Claude 3.5 Sonnet, Claude 3 Opus, DeepSeek V3, and DeepSeek R1 — on a real Nifty options trading task using 180 trades and 52 features. DeepSeek R1 led all LLMs in prediction accuracy at 61%, though a local XGBoost model outperformed every AI model at 62% for structured data. On cost, DeepSeek V3 was the cheapest cloud option at roughly ₹90 per month for the test workload, while Claude 3 Opus was the most expensive at ₹8,100. The comparison, published in August 2026, used INR conversions at ₹83 per dollar and applied identical prompts to all models without model-specific tuning.

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