OpenAI Releases GPT-5.6 to Advance Price-Performance Frontier

OpenAI has released GPT-5.6, a new model explicitly positioned to improve the tradeoff between cost and capability for API users. The release continues OpenAI's pattern of iterating on model efficiency between major version releases, targeting use cases where GPT-5-class intelligence is needed at lower inference cost. For developers building production applications, this means potentially significant reductions in per-token costs without sacrificing output quality on the tasks where GPT-5.6 is optimized. Engineers should evaluate GPT-5.6 against their current model tier to identify cost reduction opportunities, particularly for high-volume inference workloads. The announcement comes directly from OpenAI and is the authoritative source for pricing and capability details.