OpenAI’s April 23, 2026 release of GPT-5.5 (codenamed “Spud”) instead of GPT-6 has reset trader expectations, shifting the implied timeline for a true next-generation model to Q3-Q4 2026 or later. The 5.5 launch delivered solid but incremental gains—88.7% on SWE-bench Verified and strong agentic tooling—prompting OpenAI to retain the 5.x branding rather than leap to 6.0. With multiple GPT-5 variants already shipped in early 2026 and competitive pressure from Claude and Gemini models, developers are watching for any new pre-training announcements, safety evaluations, or Sam Altman comments that could accelerate or further delay the successor. Current market-implied odds reflect this uncertainty, pricing modest probability of a 2026 release while leaving room for slippage into 2027.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated$356,726 Vol.
July 31, 2026
13%
June 30, 2026
7%
September 30, 2026
55%
December 31, 2026
82%
$356,726 Vol.
July 31, 2026
13%
June 30, 2026
7%
September 30, 2026
55%
December 31, 2026
82%
For this market to resolve to "Yes," GPT-6 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 clearly defined and publicly announced by OpenAI as being accessible to the general public.
GPT-6 refers to a product explicitly named GPT-6 (e.g. ChatGPT-6o would count), or one that is recognized as a successor to GPT-5, similar to the progression from GPT-3 to GPT-4. Products labeled as GPT-5.5 or similar will not count for this market's resolution.
The primary resolution source for this market will be official information from OpenAI, with additional verification from a consensus of credible reporting.
Market Opened: Nov 12, 2025, 5:07 PM ET
Resolver
0x65070BE91...For this market to resolve to "Yes," GPT-6 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 clearly defined and publicly announced by OpenAI as being accessible to the general public.
GPT-6 refers to a product explicitly named GPT-6 (e.g. ChatGPT-6o would count), or one that is recognized as a successor to GPT-5, similar to the progression from GPT-3 to GPT-4. Products labeled as GPT-5.5 or similar will not count for this market's resolution.
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 April 23, 2026 release of GPT-5.5 (codenamed “Spud”) instead of GPT-6 has reset trader expectations, shifting the implied timeline for a true next-generation model to Q3-Q4 2026 or later. The 5.5 launch delivered solid but incremental gains—88.7% on SWE-bench Verified and strong agentic tooling—prompting OpenAI to retain the 5.x branding rather than leap to 6.0. With multiple GPT-5 variants already shipped in early 2026 and competitive pressure from Claude and Gemini models, developers are watching for any new pre-training announcements, safety evaluations, or Sam Altman comments that could accelerate or further delay the successor. Current market-implied odds reflect this uncertainty, pricing modest probability of a 2026 release while leaving room for slippage into 2027.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated

Beware of external links.
Beware of external links.
Frequently Asked Questions