On 31 Jul, a ChatGPT user asked why Luna was absent from the normal Chat model selector following pricing changes. A second ChatGPT post that day described Luna as cheaper and asked why it had not replaced “chatgpt 5.5 instant.” The discussion establishes user interest in Luna’s price and availability. The signals provide no adoption figures or explanation for the selector decision.
Taking this as factual, impact is 0%. Luna’s lower pricing has prompted questions from users comparing model options. The reported event leaves access and adoption unchanged on its own.
Watch for an official pricing update, Luna appearing in the normal Chat model selector, or a stated reason for keeping “chatgpt 5.5 instant” in place.
<!-- SC_OFF --><div class="md"><p>I think people are making GPT-6 Sol and Luna more complicated than they are.</p> <p>I tested them, used them for real work, and checked the
<table> <tr><td> <a href="https://www.reddit.com/r/ChatGPT/comments/1xae0s9/didnt_they_say_luna_is_unlimited_in_the_free_plan/"> <img alt="Didn't they say Luna is unlimited in the
<table> <tr><td> <a href="https://www.reddit.com/r/OpenAI/comments/1xa60rq/psa_chatgpt_intentionally_swaps_selected_model/"> <img alt="PSA: ChatGPT intentionally swaps selected
<!-- SC_OFF --><div class="md"><p>5.4 was doing a great job for me anyway so do they reduce the session cost for older models or I should just move to 5.5 and be done with it
<!-- SC_OFF --><div class="md"><p>Luna Max is insane value if we're looking at API rates right now. Based off Artificial Analysis, Luna Max scores between Terra High and Xhigh in
<!-- SC_OFF --><div class="md"><p>For me, when I select GPT-5.5 Thinking with Auto-switch off; standard voice generates a response labelled GPT-5.3. If I leave voice mode and use
<!-- SC_OFF --><div class="md"><p>When chat gpt was first becoming popular I remember I tried it and could use it for like, days, and no limit was ever hit. I tried again recently
<table> <tr><td> <a href="https://www.reddit.com/r/OpenAI/comments/1wnh9qd/gpt6_sol_and_gpt6_luna_available_now/"> <img alt="GPT-6 Sol and GPT-6 Luna Available Now"
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