GPT-5.6 Sol pricing drops on AI Gateway, and 50% discount still applies

OpenAI lowered list pricing for GPT-5.6 Sol on Vercel's AI Gateway, with input prices dropping 20% and output prices dropping 33% across all service tiers, while the 50% discount continues through September 18th. The new list prices are $4.00/$20.00 per million tokens for Default tier, $2.00/$10.00 for Flex, and $8.00/$40.00 for Priority, with effective prices after discount at $2.00/$10.00, $1.00/$5.00, and $4.00/$20.00 respectively.

OpenAI just lowered list pricing for GPT-5.6 Sol https://vercel.com/ai-gateway/models/gpt-5.6-sol . The 50% AI Gateway discount continues and applies to the new list price now through September 18th. The 50% discount applies on every tier on the OpenAI provider, against the new list price. Service tier | You pay now input / output | New list price input / output | You paid before input / output | |---|---|---|---| Default | $2.00 / $10.00 | $4.00 / $20.00 | $2.50 / $15.00 | Flex | $1.00 / $5.00 | $2.00 / $10.00 | $1.25 / $7.50 | Priority fast mode | $4.00 / $20.00 | $8.00 / $40.00 | $5.00 / $30.00 | Rates are per million tokens, for requests up to 272K tokens. The reduction is the same proportion on every tier: input is 20% lower than before and output is a third lower. Cached tokens, cache writes, and long-context requests above 272K move on the same terms, as do the US regional rates. Current rates for every model are on the pricing page https://vercel.com/docs/ai-gateway/pricing . The discount itself has not changed, and neither has the date it ends. This is the same 50% off applied to a lower list price. Billing through AI Gateway picks this up automatically. BYOK https://vercel.com/docs/ai-gateway/authentication-and-byok/byok requests run on your own account and bill at your rate with the provider. The model ID openai/gpt-5.6-sol is unchanged, so requests you already send bill at the new rate with no code change: Sol takes a reasoning effort up to max for the hardest problems, accepts text, image, and PDF input, and carries a long context window. To use it in a coding agent, see the coding agents guide https://vercel.com/docs/ai-gateway/coding-agents , then run vercel ai-gateway coding-agents setup to connect agents like Claude Code, Codex, OpenCode, Cursor, Pi, and more, and select openai/gpt-5.6-sol inside the agent. Try GPT-5.6 Sol in the playground https://vercel.com/ai-gateway/models/gpt-5.6-sol and view all language models https://vercel.com/ai-gateway/models?type=text to get started with AI Gateway.