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So in the codex app there is no 5.6 Sol and in the browser there is no Terra and

BACKGROUND
1 SIGNALFIRST DETECTED 13 July 2026
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How the story developed
Other feeds and industry voices
11 Jul
Main GPT 5.6 Terra or Sol??

<!-- SC_OFF --><div class="md"><p>I believe tibo said to main 5.6 sol medium and use sol high for tough tasks, but sol is double the cost of terra. If terra is basically sonnet's

OPINION · WHO · OpenAIOPEN STORY
16 Oct
Sol 6.1 is the new GOAT, hear me out…

<!-- SC_OFF --><div class="md"><p>After initially getting burned, I gave it another chance. You just have to be specific with it. Now I’ve been churning out games all week and

OPINION · WHAT · ChatGPTOPEN STORY
10 Jul
Pro subscriber - Only seeing SOL as a model on desktop or phone app but I see Terra and Luna on "Work Mode" Am I missing something?

<!-- SC_OFF --><div class="md"><p>As the subject says, on the phone or desktop app, on Chat mode, I can only pick SOL from the 5.6 selection, there is no TERRA or LUNA unless I

OPINION · WHO · ChatGPTOPEN STORY
3 Sept
Anyone heard anything about GPT-6 Sol, Terra or Luna?

<!-- SC_OFF --><div class="md"><p>Now that Astra is out, I’m wondering if the other tiers are getting GPT-6 versions too.</p> <p>Haven’t seen much about Sol, Terra or Luna

OPINION · WHAT · OpenAIOPEN STORY
6 Oct
6.1-sol just disappeared from my codex

<table> <tr><td> <a href="https://www.reddit.com/r/OpenAI/comments/1wyy8fx/61sol_just_disappeared_from_my_codex/"> <img alt="6.1-sol just disappeared from my codex"

OPINION · WHAT · OpenAIOPEN STORY
28 Sept
I'm not able to use GPT-6 Astra, Sol, or 6 Luna in my Codex. Can anyone tell me what could be the reason?

<table> <tr><td> <a href="https://www.reddit.com/r/ChatGPT/comments/1wscp1r/im_not_able_to_use_gpt6_astra_sol_or_6_luna_in_my/"> <img alt="I'm not able to use GPT-6 Astra, Sol, or

OPINION · WHAT · ChatGPTOPEN STORY
9 Jul
Is GPT Sol, Terra and Luna coming out today?

<!-- SC_OFF --><div class="md"><p>Hey so I saw this announcement on OpenAI Ig that those models are to come out today but I had no clue if they actually do? </p> <p>The confusion

OPINION · WHO · OpenAIOPEN STORY
23 Sept
Why does Terra even exist?

<!-- SC_OFF --><div class="md"><p>There are now 4 classes to take care of at once:</p> <p>6 Astra, the frontier model</p> <p>6 Sol, the flagship model</p> <p>6 Luna, the workhorse

OPINION · HOW · ChatGPTOPEN STORY
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