OpenAI has released its new GPT-5.6 model series, featuring three tiers: Sol, Terra, and Luna, with a focus on cost-efficiency for enterprise users. While Terra offers performance similar to GPT-5.5 at half the price, and Luna provides low-cost capabilities, the flagship Sol model is priced higher than local Chinese competitors like Zhipu AI's GLM-5.2 and DeepSeek V4. Despite the cost, some Chinese users are accessing GPT-5.6 via VPNs and proxies, praising its efficiency. AI
IMPACT Sets a new benchmark for cost-efficient AI models, potentially influencing enterprise adoption and pricing strategies globally.
RANK_REASON Frontier-lab model release with system card [lever_c_demoted from frontier_release: ic=1 ai=1.0]
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