Meta Llama 4 Maverick: The Free 400B Open-Weight AI Rivaling GPT-5.4 (2026 Guide)

Meta’s Llama 4 Maverick is the most capable open-weight AI model available in April 2026. With 400 billion total parameters, a 10 million token context window, and zero API cost beyond your own compute, it is the first genuinely free model that compe...