Grok 4.6 at $2/$6 vs GPT-5.6 Sol at $5/$30: the 2026 agent cost table

Grok 4.6 at \(2/\)6 vs GPT-5.6 Sol at \(5/\)30: the 2026 agent cost table Summary. SpaceXAI released Grok 4.6 on 12 August 2026 at \(2 per 1M input tokens and \)6 per 1M output tokens, unchanged from