OpenAI is reportedly preparing to release GPT-5.6, featuring three distinct models: Sol, Terra, and Luna. All three models are expected to offer a 1.05 million token context window and a maximum output of 128,000 tokens. The cutoff date for their training data is February 16, 2026, with a focus on enhanced reasoning capabilities rather than just increased context length. AI
IMPACT This release could significantly advance LLM reasoning capabilities and set new standards for context window size in the industry.
RANK_REASON Frontier-lab model release with system card. [lever_c_demoted from frontier_release: ic=1 ai=1.0]
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