GPT-5.6 Sol is now 50% off a lower price
OpenAI reduced GPT-5.6 Sol pricing by 20% for input and a third for output, with a 50% AI Gateway discount applied through September 18. The model ID remains unchanged, so existing requests automatically reflect the new rates.
OpenAI announced a price reduction for GPT-5.6 Sol, lowering input token costs by 20% and output token costs by a third. The 50% discount through Vercel’s AI Gateway applies to these new rates until September 18, 2025. Pricing adjustments also extend to cached tokens, cache writes, and long-context requests exceeding 272K tokens, maintaining proportional changes across all categories. The model ID remains unchanged, ensuring existing requests automatically bill at the updated rates without modification.
Vercel confirmed that the pricing update applies uniformly to all request types, including those processed through AI Gateway’s regional rates in the US. Users sending requests directly to OpenAI under a Bring Your Own Key (BYOK) arrangement will not benefit from the discount and will continue billing at their existing OpenAI rates. The changes simplify cost management for developers relying on GPT-5.6 Sol within Vercel’s ecosystem.
To integrate GPT-5.6 Sol into coding agents, developers must run the command vercel ai-gateway coding-agents setup to connect their agents to AI Gateway. After setup, users can select openai/gpt-5.6-sol as the model in the agent’s configuration. Vercel provides a dedicated guide for configuring coding agents, outlining step-by-step instructions for seamless integration.
Developers can test GPT-5.6 Sol in Vercel’s AI Gateway playground or explore the full catalog of supported language models. The pricing adjustment follows OpenAI’s broader strategy to reduce costs for high-volume users while maintaining accessibility. Vercel’s AI Gateway continues to serve as a centralized platform for managing AI model requests, with updated pricing reflected immediately for eligible users.