comparisonllm context window comparisoncontext windowlong context llmmillion token contextai apiLLM Context Window Comparison 2026: How Big, and What It CostsLLM context windows compared in 2026 — Claude, GPT, Gemini, DeepSeek, Kimi and more, from 200K to 2M tokens. What large context really costs and when you need it.2026-07-10claire-lowe