LLM Usage Limits 2026: ChatGPT vs. Claude vs. Gemini vs. Grok vs. Perplexity (Full Comparison)

Infographic comparing LLM usage limits in 2026 across five AI platforms: ChatGPT GPT-5.4 with approximately 150 messages per 3-hour rolling window, Claude with approximately 45 messages per 5 hours, Gemini with 1 million token context, Grok with 10 messages per 2 hours, and Perplexity Pro with 300+ multi-model searches per day.

GPT-6 Astra, Claude Fable 5.1, Gemini 3.8 Flash and a $100 SuperGrok Plus all landed in September, and on most $20 plans the newest model isn’t fully included. Every plan, price, limit and model gate across the five major AI assistants, re-checked against official sources on 16 September 2026.