OpenAI has released GPT-5.6-Sol, a new frontier intelligence model, alongside more affordable options like Terra and Luna. The author compares Sol to Anthropic's Fable, noting that while Fable excels in raw intelligence and trustworthiness, Sol offers superior practical capabilities for tasks like coding and web search. Sol is positioned as a "workhorse" model for getting things done, whereas Fable is framed as a more intelligent collaborator and architect. Pricing details show Sol at $5/$30, Terra at $2.50/$15, and Luna at $1/$6, with OpenAI highlighting Sol's cost-effectiveness for enterprises and its role in accelerating AI research. AI
IMPACT Positions GPT-5.6-Sol as a cost-effective workhorse, potentially accelerating enterprise adoption and AI research.
RANK_REASON Frontier-lab model release with system card. [lever_c_demoted from frontier_release: ic=2 ai=1.0]
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