OpenAI’s accelerated release cadence for its GPT series is the main driver of trader sentiment around GPT-5.6, with the flagship large language model GPT-5.5 launching on April 23 and internal checkpoints for the follow-on version already appearing in Codex logs by mid-May. The 49-day gap from GPT-5.4 to 5.5, combined with competitive pressure from Anthropic’s Claude models and Google’s Gemini iterations, has traders pricing in a high likelihood of a public API and ChatGPT rollout in June or July. Recent developer reports confirm early testing phases, though no official benchmarks or system card have surfaced yet, leaving room for typical timeline slippage. Key catalysts ahead include potential announcements at developer conferences, API documentation updates, or enterprise feature rollouts that could clarify availability thresholds.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated$49,404 Vol.
May 22
<1%
May 31
14%
June 15
77%
June 30
89%
July 31
94%
$49,404 Vol.
May 22
<1%
May 31
14%
June 15
77%
June 30
89%
July 31
94%
GPT-5.6 refers to a product explicitly named GPT-5.6, or a variant that is recognized as a direct successor to GPT-5.5, similar to the progression from GPT-5.1 to GPT-5.2. (e.g., GPT-5.7, GPT-5.8, etc., would qualify toward a "Yes" resolution to this market)
Qualifying releases of task-specialized models (e.g., GPT-Codex/Transcribe), cost-efficiency variants (e.g., Nano/Mini), or reasoning models of the o-series family will count for this market. Products labeled as a new flagship generation GPT-6 or similar will NOT qualify.
For this market to resolve to "Yes," 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 be either clearly defined and publicly announced by OpenAI as being accessible to the general public or otherwise made publicly accessible and explicitly labeled within 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: Apr 30, 2026, 11:19 AM ET
Resolver
0x65070BE91...GPT-5.6 refers to a product explicitly named GPT-5.6, or a variant that is recognized as a direct successor to GPT-5.5, similar to the progression from GPT-5.1 to GPT-5.2. (e.g., GPT-5.7, GPT-5.8, etc., would qualify toward a "Yes" resolution to this market)
Qualifying releases of task-specialized models (e.g., GPT-Codex/Transcribe), cost-efficiency variants (e.g., Nano/Mini), or reasoning models of the o-series family will count for this market. Products labeled as a new flagship generation GPT-6 or similar will NOT qualify.
For this market to resolve to "Yes," 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 be either clearly defined and publicly announced by OpenAI as being accessible to the general public or otherwise made publicly accessible and explicitly labeled within 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 accelerated release cadence for its GPT series is the main driver of trader sentiment around GPT-5.6, with the flagship large language model GPT-5.5 launching on April 23 and internal checkpoints for the follow-on version already appearing in Codex logs by mid-May. The 49-day gap from GPT-5.4 to 5.5, combined with competitive pressure from Anthropic’s Claude models and Google’s Gemini iterations, has traders pricing in a high likelihood of a public API and ChatGPT rollout in June or July. Recent developer reports confirm early testing phases, though no official benchmarks or system card have surfaced yet, leaving room for typical timeline slippage. Key catalysts ahead include potential announcements at developer conferences, API documentation updates, or enterprise feature rollouts that could clarify availability thresholds.
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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