OpenAI relabels gpt-5.6-sol from 'Frontier model' to 'Flagship model' and gpt-5.2 from 'Previous frontier model' to 'Previous flagship model' in a coordinated tier edit

Three model description changes landed in the same detection window: gpt-5.6-sol shifted from 'Frontier model for complex professional work' to 'Flagship model for complex professional work'; gpt-5.2 shifted from 'Previous frontier model for professional work with configurable reasoning effort' to 'Previous flagship model for professional work with configurable reasoning effort'; and gpt-5-mini dropped 'Near-frontier intelligence' in favor of 'Strong intelligence for cost sensitive, low latency, high volume workloads.' Retiring 'frontier' as the descriptor for gpt-5.6-sol while retaining the commercial label 'flagship' is consistent with OpenAI clearing headroom in its tier language for a higher-tier frontier release above gpt-5.6-sol — a move that would extend the product hierarchy and could reshape enterprise pricing architecture.