OpenAI’s decision to name its next frontier large language model “Astra” on August 1, 2026, rather than continuing the GPT numbering, has become the dominant factor shaping trader views on any GPT-6 release. The company shipped GPT-5.5 (codenamed Spud) in April and GPT-5.6 in July, both positioned as iterative upgrades within the existing GPT-5 family after pre-training completed at the Stargate supercluster in March. These point releases, combined with ongoing safety evaluations and red-teaming, have pushed expectations for a true generational leap into late 2026 or 2027. Competitive pressure from other labs’ model updates and OpenAI’s focus on infrastructure scaling and agentic capabilities continue to influence timing, with no official release window or API details yet confirmed for Astra or a GPT-6 equivalent.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedOpenAI publishes research showing Astra solved 10 major open math problems
OpenAI disclosed that Astra autonomously solved ten open problems in mathematics and theoretical computer science, demonstrating advanced AI capabilities. This research milestone highlighted Astra's significance but did not correspond to a public product launch or GPT-6 release.
OpenAI announces next major model Astra, not branded as GPT-6
On August 1, 2026, OpenAI introduced Astra, a new major model solving open problems in mathematics and theoretical computer science, but did not release it publicly or confirm it as GPT-6. This announcement clarified that GPT-6 remains unreleased and unnamed, pushing expectations further into late 2026 or 2027.
OpenAI announces Astra model solving ten open math problems, no public release date
On August 1, 2026, OpenAI introduced Astra by publishing solutions to ten open problems in mathematics and theoretical computer science, showcasing advanced AI capabilities. Astra was not made publicly available, nor was it confirmed as GPT-6, keeping the market's GPT-6 release expectations low.
OpenAI announces Astra model, not branded as GPT-6
August 7, 2026 plunges to 8%41%
On August 1, 2026, OpenAI introduced Astra, a new model solving open problems in math and computer science, but explicitly did not brand it as GPT-6. No public release date or ChatGPT availability was provided, signaling no GPT-6 launch at that time and causing market confidence in a near-term GPT-6 release to drop sharply.
OpenAI introduces Astra, next major model family, not branded GPT-6
December 31, 2026 plunges to 20%29%
OpenAI announced Astra with significant research achievements but no public release, pricing, or confirmation it is GPT-6. This announcement indicated a shift in branding and delayed the GPT-6 public launch further.
OpenAI announces Astra, a new major model not confirmed as GPT-6
OpenAI introduced Astra on August 1, 2026, a new major AI model with research achievements but no public release, pricing, or confirmation that it is branded GPT-6. This announcement delayed expectations for a GPT-6 launch within 2026.
OpenAI introduces Astra, its next major AI model family, not branded as GPT-6
OpenAI announced Astra, a new model family that solved ten long-standing open problems in mathematics and theoretical computer science. Astra is not publicly released, has no pricing or launch date, and OpenAI has not confirmed if it will be branded GPT-6, maintaining market uncertainty.
OpenAI announces Astra model, not named GPT-6, with no public release date
August 14, 2026 drops to 2%13%
On August 1, 2026, OpenAI introduced Astra, a new model solving open problems but not branded as GPT-6 and without a public release date or availability. This announcement did not fulfill the market's criteria for GPT-6 release, leading to further price drops.
OpenAI announces Astra, next major model family, not named GPT-6
On August 1, 2026, OpenAI introduced Astra as its next major model family without associating it with the GPT-6 name or providing a release date. This clarified that no GPT-6 model was publicly available or announced, impacting market expectations.
Prediction markets show rising odds for GPT-6 release by September 30, 2026
September 30, 2026 surges to 70%16%
Despite no official announcement, prediction markets like Polymarket and Myriad saw increasing odds (around 77-78%) for a public GPT-6 release by September 30, 2026, reflecting market speculation and anticipation rather than confirmed plans.
OpenAI introduces Astra, a major model not branded as GPT-6
On August 1, 2026, OpenAI introduced Astra, a major model solving open problems in mathematics and theoretical computer science, but did not release it publicly or confirm it as GPT-6, maintaining uncertainty about GPT-6's release.
OpenAI demonstrates Astra model to US lawmakers, but no GPT-6 branding announced
On July 27, 2026, OpenAI privately demoed Astra, its next major model family, to US lawmakers. Astra was introduced through research achievements rather than a public product launch, with no confirmation it would be branded GPT-6 or released soon, maintaining market uncertainty.
Community leaks confirm GPT-6 model exists but no public release date
August 31, 2026 plunges to 43%16%
Leaked information confirmed GPT-6 as a next-generation model in development, but OpenAI had not announced a public release date, sustaining market uncertainty and low probabilities for a 2025 launch.
OpenAI confirms existence of stronger pre-release model beyond GPT-5.6
On July 21, 2026, OpenAI disclosed that an even more capable pre-release model participated in internal cybersecurity evaluations, indicating progress beyond GPT-5.6. However, no public release or branding as GPT-6 was announced, sustaining market speculation and uncertainty.
OpenAI releases GPT-5.6 Sol, not GPT-6, continuing incremental upgrades
August 31, 2026 plunges to 43%16%
On July 9, 2026, OpenAI released GPT-5.6 Sol, an incremental upgrade rather than a generational GPT-6 model. This release reinforced market expectations that GPT-6 would not arrive imminently, causing price declines in shorter-term outcomes.
OpenAI publicly releases GPT-5.6 in three tiers after government review
Following a 13-day limited preview, OpenAI released GPT-5.6 Sol, Terra, and Luna publicly on July 9, 2026. This release expanded AI capabilities but remained within the GPT-5 family, further postponing any GPT-6 launch and influencing market sentiment toward a later release date.
White House denies approving OpenAI's GPT-5.6 rollout
The White House publicly denied reports that it had given regulatory approval for OpenAI's GPT-5.6 rollout, clarifying that deployment decisions rest entirely with companies. This contradicted earlier reports and highlighted the lack of formal government green light for the release.
OpenAI launches GPT-5.6 in limited preview to government-approved partners
December 31, 2026 drops to 80%6%
OpenAI released GPT-5.6 (Sol, Terra, Luna) to a limited group of trusted partners under a 30-day federal safety review mandated by the Trump administration. This restricted access delayed public availability and influenced market sentiment about the timing of GPT-6.
OpenAI ships GPT-5.6 to government-approved organizations under new review framework
OpenAI released GPT-5.6 (Sol, Terra, Luna) initially to a limited group of government-approved organizations under a 30-day federal review, delaying broader public access. This cautious rollout reinforced market views that GPT-6 would not be released soon and that OpenAI was focusing on incremental improvements.
US government restricts GPT-5.6 preview to vetted partners
December 31, 2026 plunges to 65%18%
OpenAI previewed GPT-5.6 to a limited group under US government review, delaying public access. This new regulatory pattern affected market confidence in rapid public releases of frontier models, including GPT-6.
OpenAI previews GPT-5.6 to limited partners under US government review
December 31, 2026 plunges to 65%16%
On June 26, 2026, OpenAI launched GPT-5.6 as a limited preview to about 20 trusted partners under a US government access-control agreement, delaying public availability. This government-mandated preview signaled a new pattern of staged AI releases, impacting market expectations for GPT-6 timing.
OpenAI releases GPT-5.5, not GPT-6, ending speculation of imminent GPT-6 launch
December 31, 2026 dips to 76%2%
OpenAI launched the model codenamed 'Spud' as GPT-5.5 on April 23, 2026, rather than GPT-6, disappointing expectations for a generational leap. This release was publicly accessible and marked a continuation of the GPT-5 family, causing market confidence in a near-term GPT-6 release to decline.
OpenAI launches GPT-5.5 with enhanced capabilities
OpenAI released GPT-5.5, internally codenamed Spud, offering significant improvements in agentic and computer-use capabilities, but did not label it GPT-6. This release shifted market expectations, signaling that GPT-6 would not arrive imminently and pushing the anticipated launch to later in 2026.
Leaks suggest GPT-6 (codename Spud) may release soon, but no official launch
Leaks in mid-April 2026 indicated that GPT-6, internally called Spud, might be released imminently, possibly around April 14. However, OpenAI did not officially announce or release GPT-6, and instead released GPT-5.5 later, leading to market uncertainty and tempered expectations for GPT-6's arrival.
OpenAI completes pre-training of next major model 'Spud', rumored as GPT-6
December 31, 2026 surges to 86%23%
OpenAI finished pre-training the model codenamed 'Spud' on March 24, 2026, with rumors suggesting an April 14 release. However, the model released was GPT-5.5, not GPT-6, leading to market adjustments and skepticism about an imminent GPT-6 launch.
No GPT-6 launch; OpenAI releases GPT-5.5 instead
December 31, 2026 surges to 86%23%
Despite earlier rumors of an April 14 GPT-6 launch, OpenAI released the model codenamed 'Spud' as GPT-5.5 on April 23, 2026, not as GPT-6. This indicated a shift to incremental versioning rather than a generational leap, causing market adjustments in expectations for GPT-6's timing.
OpenAI completes pre-training of 'Spud' model, expected to be GPT-6 or GPT-5.5
December 31, 2026 drops to 79%8%
OpenAI finished pre-training the model codenamed 'Spud' at its Stargate data center, with CEO Sam Altman describing the launch as 'a few weeks' away. This model was widely expected to be GPT-6 but later released as GPT-5.5, affecting market expectations for GPT-6 timing.
OpenAI announces retirement of older models including GPT-4o to consolidate resources for future models
December 31, 2026 drops to 80%5%
In late January 2026, OpenAI announced plans to retire several older models, including GPT-4o, to focus infrastructure and resources on GPT-5 and prepare for the next generation, implicitly indicating GPT-6 was still in development and not publicly available.
OpenAI CEO Sam Altman hints at major AI upgrade in Q1 2026 without naming GPT-6
December 31, 2026 dips to 88%1%
In early 2026, Sam Altman teased significant AI model improvements expected in Q1 2026 but avoided explicitly naming GPT-6, maintaining uncertainty about the exact timing of GPT-6's public release. This cautious communication kept market speculation alive but did not confirm a 2025 launch.
OpenAI CEO hints at major AI model upgrade in Q1 2026
December 31, 2026 drops to 82%7%
Sam Altman teased a significant upgrade in early 2026, fueling speculation about GPT-6 or a major successor model. However, no official GPT-6 release or public access was announced during this period, maintaining market uncertainty.
OpenAI bets big on audio AI with new model slated for early 2026
December 31, 2026 rises to 93%3%
OpenAI announced a new audio AI model for early 2026, highlighting ongoing innovation within the GPT-5 ecosystem and hardware efforts, but no mention of GPT-6 release. This reinforced the market view that GPT-6 public availability would not occur before 2026.
OpenAI launches ChatGPT app store to expand ecosystem
December 31, 2026 jumps to 86%6%
On December 18, 2025, OpenAI announced the launch of an app store within ChatGPT, enabling developers to submit and distribute applications. This move emphasized OpenAI's focus on enhancing the GPT-5 platform and ecosystem rather than releasing GPT-6, supporting market sentiment for a delayed GPT-6 launch.
OpenAI launches new image generation model GPT Image 1.5
December 31, 2026 rises to 87%3%
OpenAI announced GPT Image 1.5, an improved image generation model, as part of ongoing GPT-5 ecosystem upgrades. This release demonstrated OpenAI's focus on incremental improvements rather than a new GPT-6 launch, influencing market confidence in a 2025 GPT-6 release to decline.
OpenAI releases GPT-5.2 model amid competition with Google Gemini
December 31, 2026 jumps to 86%8%
OpenAI launched GPT-5.2, its most advanced model yet, in December 2025, responding to competitive pressure from Google's Gemini model. This release reinforced the focus on GPT-5 rather than GPT-6, delaying expectations for GPT-6's public availability.
OpenAI launches GPT-5.2 after internal 'code red' to counter Google's Gemini 3
December 31, 2026 jumps to 80%8%
OpenAI released GPT-5.2 on December 11, 2025, following an internal 'code red' to accelerate development in response to Google's Gemini 3 model. This release focused on improving GPT-5 capabilities rather than introducing GPT-6, reinforcing market expectations that GPT-6 would not be available in 2025.
OpenAI releases GPT-5.2 to strengthen competitive position against Google
December 31, 2026 jumps to 80%8%
OpenAI launched GPT-5.2 in early December 2025, improving reasoning and coding capabilities to maintain leadership amid rising competition from Google's Gemini model. This release further delayed expectations for GPT-6, as resources focused on GPT-5 enhancements.
OpenAI accelerates GPT-5.2 release amid competitive pressure
December 31, 2026 jumps to 78%6%
OpenAI released GPT-5.2 on December 9, 2025, earlier than initially planned due to pressure from competitors like Google. This update improved reasoning and coding capabilities but did not include GPT-6, reinforcing the focus on GPT-5 enhancements and delaying GPT-6 expectations.
OpenAI focuses on expanding and optimizing GPT-5 ecosystem
December 31, 2026 surges to 77%26%
OpenAI continued to release updates and improvements to GPT-5 models, including GPT-5.1 and GPT-5.2, signaling that the company was prioritizing refinement of existing models over launching GPT-6 in 2025.
OpenAI launches GPT-5.1 with incremental improvements, signaling focus on GPT-5 ecosystem
December 31, 2026 surges to 71%20%
On November 12, 2025, OpenAI released GPT-5.1, an upgrade to GPT-5, emphasizing iterative improvements rather than a generational leap. This reinforced the understanding that GPT-6 was not imminent and that OpenAI was concentrating on refining GPT-5.
OpenAI begins deploying GPT-5.1 to ChatGPT users worldwide
December 31, 2026 surges to 71%20%
On November 12, 2025, OpenAI started rolling out GPT-5.1 to paid subscribers, signaling continued focus on incremental improvements within the GPT-5 family rather than a new generation release. This deployment increased confidence that GPT-6 would not arrive imminently, influencing market prices upward for later release dates.
No official GPT-6 announcement from OpenAI as 2025 deadline approaches
As the December 31, 2025 deadline neared, OpenAI had not announced or released GPT-6, causing market uncertainty and a moderate price level around 51%. This lack of confirmation kept the market cautious about a 2025 public release.



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