OpenAI’s public release of the GPT-5.6 family on July 9, 2026—following a limited government-coordinated preview that began June 26—established Luna as the fast, low-cost tier alongside flagship Sol and balanced Terra. This rapid iteration from GPT-5.5 in April has reinforced trader expectations for frequent 0.1 increments, with early signals pointing to a possible 5.7 update near mid-September. Competitive pressure from Anthropic and Google model drops, plus OpenAI’s pattern of expanding access and cutting Luna pricing by up to 80 percent in late July, keeps focus on whether the next numbered step arrives before year-end or slips amid ongoing safety reviews and multi-agent feature rollouts.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedAugust 31
38%
October 31
50%
$0.00 Vol.
August 31
38%
October 31
50%
A qualifying model must have a name or model identifier that includes "GPT" and "Luna" and be designated as version 5.7 or higher, regardless of capitalization or surrounding prefixes, suffixes, dates, or descriptors. For example, a version 5.7 or higher named in the same manner as GPT-5.6 Luna would qualify, including a new whole-number generation such as GPT-6 Luna or an Astra-branded release meeting these criteria, while models whose name does not include "Luna" or which retain a version designation below 5.7, such as GPT-5.6 Luna, GPT-5.6 Sol, or GPT-5.6 Terra, will not qualify. Fine-tunes, modes, or restricted-access variants of an existing version, such as GPT-5.6-Cyber or GPT-5.6 Sol Ultrafast, will not qualify.
A qualifying model must be launched and publicly accessible, including via open beta or open rolling waitlist signups. A closed beta or any form of private access will not suffice. The release must either be clearly defined and publicly announced by OpenAI as accessible to the general public, or otherwise be made publicly accessible and explicitly labeled on the company's official website. Labeling errors, placeholder text, or version names displayed on the website that do not correspond to a model that is actually accessible to the general public will not qualify.
The primary resolution source for this market will be official information from OpenAI, with additional verification from a consensus of credible reporting.
Market Opened: Aug 14, 2026, 5:43 PM ET
Resolver
0x65070BE91...A qualifying model must have a name or model identifier that includes "GPT" and "Luna" and be designated as version 5.7 or higher, regardless of capitalization or surrounding prefixes, suffixes, dates, or descriptors. For example, a version 5.7 or higher named in the same manner as GPT-5.6 Luna would qualify, including a new whole-number generation such as GPT-6 Luna or an Astra-branded release meeting these criteria, while models whose name does not include "Luna" or which retain a version designation below 5.7, such as GPT-5.6 Luna, GPT-5.6 Sol, or GPT-5.6 Terra, will not qualify. Fine-tunes, modes, or restricted-access variants of an existing version, such as GPT-5.6-Cyber or GPT-5.6 Sol Ultrafast, will not qualify.
A qualifying model must be launched and publicly accessible, including via open beta or open rolling waitlist signups. A closed beta or any form of private access will not suffice. The release must either be clearly defined and publicly announced by OpenAI as accessible to the general public, or otherwise be made publicly accessible and explicitly labeled on the company's official website. Labeling errors, placeholder text, or version names displayed on the website that do not correspond to a model that is actually accessible to the general public will not qualify.
The primary resolution source for this market will be official information from OpenAI, with additional verification from a consensus of credible reporting.
Resolver
0x65070BE91...OpenAI’s public release of the GPT-5.6 family on July 9, 2026—following a limited government-coordinated preview that began June 26—established Luna as the fast, low-cost tier alongside flagship Sol and balanced Terra. This rapid iteration from GPT-5.5 in April has reinforced trader expectations for frequent 0.1 increments, with early signals pointing to a possible 5.7 update near mid-September. Competitive pressure from Anthropic and Google model drops, plus OpenAI’s pattern of expanding access and cutting Luna pricing by up to 80 percent in late July, keeps focus on whether the next numbered step arrives before year-end or slips amid ongoing safety reviews and multi-agent feature rollouts.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated
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