On 2026-06-26 @cryptopunk7213 claims OpenAI's new GPT-5.6 'Sol' has officially…

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Cryptopunk7213 celebrates OpenAI's June 26, 2026 preview of GPT-5.6, claiming Sol has taken the #1 spot over Mythos and "crushed" the Terminal 2.1 benchmark while using one‑third the tokens. OpenAI's announcement previews Sol (limited), Terra, and Luna; Sol includes an "ultra mode" that spawns sub‑agents and will see a limited public release in a few weeks.

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The author reports GPT-5.6 "crushed" the Terminal 2.1 benchmark while using one‑third the tokens; OpenAI previewed GPT-5.6 Sol (limited preview), plus Terra and Luna, and says Sol includes an "ultra mode" that spins up multiple sub‑agents and will have a limited public release in a few weeks.

oh wow, new openai model GPT 5.6 officially takes the #1 spot. beats mythos at coding

crushed in the terminal 2.1 benchmark while also using less tokens (1/3rd)

best news: GPT Sol is their most advanced model will release to the public in a few weeks (limited release for now)

comes with a new ultra mode that spins up multiple sub agents to complete tasks

v excited to use this

OpenAI (@OpenAI)

Introducing a limited preview of GPT-5.6 Sol, our next generation frontier model, as well as GPT-5.6 Terra, a balanced model for efficient, everyday work, and GPT-5.6 Luna, a fast and affordable model for high-volume work.

openai.com/index/previewing-…

Link

Previewing GPT-5.6 Sol: a next-generation model

OpenAI previews GPT-5.6 Sol, a next-generation model with stronger capabilities in coding, science, and cybersecurity, paired with its most advanced safety stack.
openai.com

— https://nitter.net/OpenAI/status/2070555272230384038#m

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