GPT 5.6 Sol 20% price reduction

GPT-5.6 Sol, the frontier model in the GPT-5.6 family, now offers a 20% reduction in input pricing and a 33% reduction in output pricing, costing $4 per million input tokens and $20 per million output tokens. This model is designed for complex professional work, featuring high reasoning capabilities, fast speed, and a 1,050,000 context window. It supports text and image input, text output, and has a knowledge cutoff of February 16, 2026. Promotional pricing is available at least through November 21, 2026.