LLM API Pricing 2026: GPT-5.6 vs Claude vs Gemini vs Grok
As of July 16, 2026: DeepSeek V4 Flash is the cheapest frontier LLM API ($0.14/$0.28 per 1M tokens), Claude Sonnet 5 is the best price-to-performance default ($2/$10 intro pricing), and Grok 4.1 Fast has the largest context window (up to 2M tokens). Full provider tables and cost levers below.
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