GPT-5.6 Sol API Prices Cut 50%: Input Now $2.50, Output $15.00 per 1M Tokens

OpenAI has dropped GPT-5.6 Sol's API pricing by 50% across both input and output tokens — a meaningful move for anyone running this model at scale.

What Changed

Input tokens fell from $5.00 to $2.50 per 1M tokens. Output tokens dropped from $30.00 to $15.00 per 1M tokens. Both cuts land at exactly -50%, so the input/output cost ratio stays the same — you're just paying half as much for every call.

Does It Move the Needle for Your Workload?

The output price is where most real-world spend accumulates, so the $15.00 figure is the one to watch. If you were previously running, say, 10M output tokens a month, your bill drops from $300 to $150 — no architecture changes required. For high-volume production workloads, that's a straightforward win. For low-volume or experimental use, the absolute savings are smaller but the new entry price is easier to justify in a budget conversation.

The cut also narrows the gap with cheaper alternatives, which matters less if GPT-5.6 Sol's quality is already earning its place in your pipeline — but if you were benchmarking it against lower-cost models and losing, it's worth re-running that comparison now.

Context

Price cuts of this size are increasingly common as frontier-model providers compete on cost alongside capability. OpenAI offering a -50% reduction signals either improved infrastructure efficiency, competitive pressure, or both. Either way, the benefit passes directly to API consumers.

Check the full spec sheet and track future price changes on the GPT-5.6 Sol — live specs & price history page.

Ezra, Scout AI Team