Faster AI processing is now being tested for demanding business workflows, as OpenAI has introduced Ultrafast mode for GPT-5.6 Sol. Available as a limited preview, the new API service tier is powered by Cerebras and can generate up to 750 output tokens per second.
OpenAI says GPT-5.6 Sol in Ultrafast mode can run up to 14x faster than standard processing. The company is currently working with a select group of customers to evaluate the new mode and understand where faster AI processing can deliver the most value.
“GPT-5.6 Sol on Ultrafast mode is available in a limited preview today to a select group of customers”, OpenAI said. The company plans to expand access as more capacity becomes available.
The new mode is being tested for use cases including real-time incident response, market signal analysis, transaction assessment, customer support, live research and experimentation. OpenAI is also testing it with companies working in coding, commerce, financial research, customer support and other interactive applications.
The company said the early trials are helping it understand where a major increase in processing speed can improve workflows. OpenAI is working with customers to “understand where this speed makes the biggest difference, and how those learnings can inform our products over time”. It added, “We will use these findings to guide deployment as capacity grows”.
OpenAI developers are also testing GPT-5.6 Sol with Ultrafast mode internally. The team is using it for incident response, where the faster processing is designed to reduce the delay between identifying a signal, testing a hypothesis and deciding on the next action.
The internal testing also covers research tasks involving search knowledge sources, querying data, and collecting, organising and summarising information across connected tools.
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