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OpenAI's GPT-5.6 to feature three models with 1M+ context window

By PulseAugur Editorial · [1 sources] ·

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]

Read on Mastodon — mastodon.social →

AI-generated summary · Google Gemini · from 1 sources. How we write summaries →

OpenAI's GPT-5.6 to feature three models with 1M+ context window

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0 / 100
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Significant
Frontier-lab model release with system card. [lever_c_demoted from frontier_release: ic=1 ai=1.0]
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Only one publisher covered this so far. Single-source stories can still rank when the publisher is high-authority, but they lack cross-source corroboration.
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High
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45 days old
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COVERAGE [1]

  1. Mastodon — mastodon.social TIER_1 English(EN) · coursiv ·

    GPT-5.6, no hype. Three models - Sol, Terra, Luna - and all three ship the same 1.05M-token context, 128K max output, Feb 16 2026 cutoff. What the top tier buys

    GPT-5.6, no hype. Three models - Sol, Terra, Luna - and all three ship the same 1.05M-token context, 128K max output, Feb 16 2026 cutoff. What the top tier buys isn't more reading capacity, it's more reasoning depth. The parts that actually change how you build 🧵 1/5 # ChatGPT # …

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