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Will GPT-6 be released by September 30, 2026?

0xf82f84686ee2a25f5690430461413c4dc5a39dcea922a7c5f47d9d29418fbdb6 · Companies · 2026-08-28
25%
Agent
30%
Market Price
-4.5%
Edge
66%
Confidence
Volume: 294,597
Spread: 3.0c
Days to resolution: 33
Markets in event: 13
Final Rationale
The live Polymarket anchor (29.5%, down 39pp in 30 days) already prices in the naming ambiguity and the Aug 7 'Critical' cybersecurity disclosure, so both forecasters' further discounting risks double-counting bearish signals. Offsetting that, the resolution language explicitly permits any non-GPT-5.x successor branding — so an 'Astra' launch could qualify even without the literal 'GPT-6' name, which both forecasters underweighted by framing the choice as GPT-6 vs GPT-5.7. Against this, OpenAI's revealed preference for point-release branding (six 5.x releases Nov 2025–Jul 2026), the absence of any confirmed launch date, the unresolved preparedness-framework gate, and only ~5 weeks of runway all support No, as does the ~8–12% statistical base rate for a numbered jump. I settle at 25% — slightly below the market anchor to reflect time decay and the market's continued downward drift, but above both forecasters to credit the looser resolution bar and this market's demonstrated volatility (14–75.5% range).
Price vs. prediction
How the market moved after the agent's call. Solid blue line is the actual market price; dashed line is the agent's static forecast at $t{=}0$.
$n = 5$ follow-ups
Re-scan Context
This market has been scanned before. Previous predictions:
DatePredictedMarket PriceConfidence
2026-08-21 16% 34% 62%
1. Planner Opus · Fermi decomposition + tool plan
Tools chosen: polymarket_direct polymarket_related kalshi_related claude_news gdelt_news wikipedia code_execution
Sub-questions (Fermi decomposition)
  1. What is the current Polymarket YES price and price trend/volume for GPT-6 released by Sept 30, 2026?
  2. What has Sam Altman or OpenAI officially said about GPT-6's timeline, and has any GPT-6 training/release been confirmed?
  3. What is the historical gap between OpenAI's numbered GPT releases (GPT-3 -> GPT-4 -> GPT-5), and what base rate does that imply for a GPT-6 within ~14 months of GPT-5's Aug 2025 launch?
  4. Has OpenAI shipped intermediate releases (GPT-5.1, GPT-5.2, o-series, etc.) that suggest they will continue incrementing sub-versions rather than jumping to GPT-6?
  5. Are there compute/infrastructure or competitive-pressure signals (Gemini 3, Claude releases, Stargate capacity) that would accelerate or delay a GPT-6 launch in 2026?
  6. Do other prediction markets (Kalshi, other Polymarket GPT-6 markets with different deadlines) imply a different probability for a 2026 GPT-6 release?
Planner reasoning
This is a Polymarket question about whether OpenAI ships a model explicitly named/recognized as GPT-6 to general public by Sept 30, 2026. Key drivers: OpenAI's historical release cadence (GPT-4 Mar 2023, GPT-5 Aug 2025), Altman's public statements about GPT-6 timing, and naming conventions (o-series, GPT-5.x releases dilute the 'GPT-6' label). Market price is the primary anchor; news search on Altman statements and cross-venue checks add signal.
2. Research Parallel tool calls
ToolStatusTimeItemsSummary
polymarket_direct OK 0.4s 1 ## This Market's Polymarket Data **Will GPT-6 be released by September 30, 2026?** - Current price (probability): 29.50% - 7-day price change: -6.50% - 30-day price change: -39.00% - Total volume: $294,597 (USD notional) - Price range: 14.00% - 75.50% - Data points: 91 days
polymarket_related OK 3.8s 0 Scanned 100 active Polymarket markets, kept 0 matches. keyword 'GPT-6': 0 markets | keyword 'OpenAI': 0 markets | keyword 'GPT-5': 0 markets | keyword 'best AI model': 0 markets
kalshi_related OK 3.7s 2 2 related markets / summaries. keyword 'GPT-6': no matches | keyword 'OpenAI': ok | keyword 'AI model release': ok
claude_news OK 24.3s 13 ## Key Findings - **No official GPT-6 release date exists as of late August 2026.** OpenAI has not announced a GPT-6 release date, and it has not confirmed that GPT-6 and Astra are the same model; as of August 2026, the only official fact is Astra itself, with no release date, model card, API, pri
gdelt_news OK 74.6s 20 GDELT: 20 articles across 3 queries (lookback=60d). 'GPT-6 OpenAI release': 10 hits | 'Sam Altman GPT-6 timeline': error HTTPSConnectionPool(host='api.gdeltproject.org', port=443): Max retries exceeded with url: /api/v2/doc/doc?query=%28sam+OR+altman+OR+gpt+OR+timeline%29+sourcelang%3Aenglish&mode=A
wikipedia OK 0.1s 4 Fetched 4 Wikipedia entries (0 missing pages).
code_execution OK 34.7s 0 ## GPT-6 Base Rate Analysis: P(Released by Sep 30, 2026) **Historical intervals between major GPT releases (months):** - GPT-1→GPT-2: 8 mo | GPT-2→GPT-3: 16 mo | GPT-3→GPT-4: 33 mo | GPT-4→GPT-5: 29 mo - Mean interval = **21.5 months**, but recent regime (last 2 gaps) averages **31 months** — relea
3. Evidence Brief Sonnet · 7036 chars
# Current state As of the latest research (~late Aug 2026), OpenAI has not released any product named "GPT-6." Its likely successor family, codenamed "Astra," was only confirmed via an August 1, 2026 research post (not a product launch), and OpenAI has explicitly not decided whether to brand it "GPT-6" or "GPT-5.7." A disclosed "Critical" cybersecurity risk classification (Aug 7, 2026) adds deployment-delay risk. The market closes Oct 1, 2026 — roughly 5 weeks of runway remain as of this research. # Timeline of key events - 2023-03: GPT-4 released publicly. (confirmed — Wikipedia) - 2025-08-07: GPT-5 released publicly, ~29 months after GPT-4. (confirmed — Wikipedia) - 2025-11: GPT-5.1 released. (confirmed — Wikipedia/claude_news) - 2025-12: GPT-5.2 released. (confirmed — Wikipedia) - 2026-02-05: GPT-5.3-Codex released. (confirmed) - 2026-03-05: GPT-5.4 released. (confirmed) - 2026-04-23: GPT-5.5 ("Spud") released; reportedly absorbed features widely expected to define "GPT-6" (memory/personalization). (confirmed — Wikipedia, voiceflow.com) - 2026-07-08/10: GPT-5.6 launched with sub-models Sol/Terra/Luna plus "GPT-Live" voice series; brief dispute over US export/approval status. (reported — multiple outlets) - 2026-08-01: OpenAI names "Astra" as "our next major model" via research post, not a product announcement. (confirmed — gizmodo.com, emergent.sh) - 2026-08-07: OpenAI discloses it "cannot rule out" Astra hit the "Critical" cybersecurity threshold under its preparedness framework — a potential deployment gate. (confirmed — emergent.sh) - 2026-08-17/20: Rumors/leaks suggest Astra could launch "this week"; unclear whether branded GPT-6 or GPT-5.7. No confirmed launch. (rumored — thewincentral.com, geeky-gadgets.com) # Event Will OpenAI publicly release a model officially recognized as "GPT-6" (or an equivalent successor to GPT-5, excluding GPT-5.x labels) by September 30, 2026? # Outcomes to forecast - Yes - No # Kalshi market anchor No kalshi_direct tool output was provided in this research; the ticker given matches the Polymarket market ID, not a distinct Kalshi listing. Best available live cross-market anchor: **Polymarket YES = 29.5%**, down 6.5pp over 7 days and down 39pp over 30 days, on $294,597 total volume; price has ranged 14%–75.5% over the past 91 days, indicating a sharp collapse from earlier optimism (peak ~75.5%) to current pessimism. # Sub-question answers 1. **Polymarket price/trend** — Current YES 29.5%, -6.5% (7d), -39% (30d), $294,597 volume, 91-day range 14–75.5%. Trend is strongly downward, consistent with the market pricing in naming/timing slippage (Polymarket_direct). 2. **Altman/OpenAI official statements** — No official GPT-6 announcement exists. OpenAI confirmed a next-gen model codenamed "Astra" on Aug 1, 2026 via research post only; naming (GPT-6 vs. GPT-5.7) is explicitly undecided, and an Aug 7 disclosure of possible "Critical" cybersecurity risk may delay deployment (claude_news, lifearchitect.ai, emergent.sh). 3. **Historical gap base rate** — GPT-3→GPT-4 ≈33mo, GPT-4→GPT-5 ≈29mo; recent regime trending toward longer gaps, not shorter. Blended statistical models put P(any major numbered release within 14 months of GPT-5) ≈0.34; adjusting for ~30% chance the next model is literally branded "GPT-6" (vs. GPT-5.x) yields a base rate of **~0.08–0.12** (code_execution). 4. **Intermediate releases** — Yes: OpenAI shipped GPT-5.1, 5.2, 5.3-Codex, 5.4, 5.5, and 5.6 (with Sol/Terra/Luna sub-models) between Nov 2025 and Jul 2026, strongly indicating continued incrementing rather than an imminent full-number jump (Wikipedia, GDELT). 5. **Competitive/compute signals** — Research provided no specific data on Gemini/Claude/Stargate timing pressure; general competitive AI-boom context noted (OpenAI Wikipedia) but no concrete acceleration/delay signal identified. Gap in evidence. 6. **Other markets** — No dedicated Kalshi GPT-6 market found (kalshi_related returned only tangential OpenAI/Anthropic IPO and US-stake markets); no other Polymarket GPT-6 markets found (polymarket_related: 0 matches). A secondary source (findskill.ai) cited stale mid-April 2026 Polymarket odds (72% by Sep 30) that are far above the current live 29.5%, confirming a large downward repricing since spring. # Key facts (high-confidence, factual) 1. [Wikipedia] GPT-5 launched Aug 7, 2025, ~29 months after GPT-4 (Mar 2023). 2. [Wikipedia/claude_news] Six GPT-5.x point releases shipped Nov 2025–Jul 2026 (5.1 through 5.6). 3. [emergent.sh/gizmodo] "Astra," the presumed GPT-6 successor, was only announced via research post Aug 1, 2026 — no product, no release date. 4. [emergent.sh] Aug 7, 2026: OpenAI flagged Astra's possible "Critical" cybersecurity classification, a preparedness-framework gate that can delay release. 5. [lifearchitect.ai] OpenAI has not decided whether Astra will be named "GPT-6" or "GPT-5.7." 6. [Polymarket_direct] Current YES = 29.5%, down sharply from a 91-day high of 75.5%. # Cross-market signals - Kalshi related: No direct GPT-6 market found; adjacent OpenAI markets (IPO race, US equity stake) show no GPT-6-relevant signal. - Polymarket: This is the primary tracked market; 29.5% and falling. - Sportsbook implied: N/A. # Analyst opinions and speculation - Multiple outlets (thewincentral, geeky-gadgets) reported mid-August 2026 leaks suggesting an imminent Astra launch "this week," unconfirmed. - lifearchitect.ai and mindstudio.ai frame Astra as GPT-5's true successor but stress naming ambiguity and lack of a confirmed release window. - code_execution's quantitative model treats the "GPT-6" label itself as unlikely to be adopted soon, independent of whether a capable new model ships. # Directional lean per outcome - **Yes**: Astra exists, is under active development, briefed to lawmakers, and rumors point to near-term launch; OpenAI's rapid 2026 cadence (six 5.x releases) shows capability to ship quickly if they choose the GPT-6 label. - **No**: OpenAI has consistently used GPT-5.x branding instead of jumping to GPT-6 even for major capability leaps (5.5, 5.6); naming undecided as of Aug 2026; safety/cybersecurity classification risk could delay any release; statistical base rate and Polymarket's sharp 39-point monthly decline both point toward "No." # Gaps / unknowns - No official kalshi_direct data was available for this specific ticker. - No concrete evidence on Gemini/Claude competitive timing pressure or Stargate compute constraints. - No confirmation whether Astra, if launched, will be labeled "GPT-6" vs. "GPT-5.7" — this naming decision is the single largest swing factor. # Calibration anchors - Polymarket current YES price (proxy anchor): 29.5%, trending down (-39% in 30 days). - Statistical base rate for a true "GPT-6" release within 14 months of GPT-5: ~8–12% (code_execution model). - Historical precedent: full-number GPT jumps have taken 29–33 months historically; OpenAI has repeatedly chosen incremental (5.x) branding over the past year despite substantial capability gains.
4. Forecasters Opus + GPT · in parallel
claude-opus-5
0.60
Yes 23%
No 77%
The Polymarket anchor (best available proxy, no Kalshi listing) sits at 29.5% YES and has fallen 39pp in 30 days, reflecting repricing away from an imminent GPT-6 branding. OpenAI has shipped six incremental GPT-5.x releases (5.1–5.6) between Nov 2025 and Jul 2026, showing a strong revealed preference for point-release branding over a full-number jump; 'Astra' was only announced via an Aug 1, 2026 research post with naming explicitly undecided between GPT-6 and GPT-5.7. The Aug 7 disclosure of a possible 'Critical' cybersecurity classification under the preparedness framework adds a concrete deployment gate in the final five weeks. Statistical base rates (~8–12%) argue lower, but mid-August leak reports of an imminent Astra launch and the rule's allowance for a non-5.x-labeled successor argue higher, so I settle modestly below the market anchor at 23%.
gpt-5.6-sol
0.72
Yes 21%
No 79%
The 29.5% Polymarket YES price is the best available anchor, and its 39-point monthly decline points toward No as expectations of an imminent launch have weakened. OpenAI has confirmed Astra only as a research-stage next major model, with no release date and unresolved GPT-6 versus GPT-5.7 branding, while the possible Critical cybersecurity classification creates an additional deployment gate. Six GPT-5.x releases through July demonstrate a strong preference for incremental branding, and historical release gaps imply only an 8–12% base rate for a numbered GPT-6 by the deadline. Astra's active development and mid-August launch rumors preserve a meaningful Yes chance, but I discount the market anchor because only about five weeks remain and neither launch readiness nor qualifying branding is confirmed.
5. Devil's Advocate Sonnet · red-team critique
1. Both forecasts land below the 8–12% base-rate anchor's midpoint discussion range yet also below the Polymarket 29.5% anchor, effectively double-counting bearish signals (base rate + declining Polymarket trend) without weighing that Polymarket already incorporates knowledge of the naming ambiguity and Critical-risk disclosure as of its most recent price — the 39pp decline may already reflect exactly the "No" case they're additionally penalizing for. 2. Neither forecaster grapples with the specific mid-August leak reports ("launch this week") with much weight — both mention them only as a minor upward nudge, but if such leaks are false/premature they should also update toward "No" more concretely (i.e., discredited rumor = evidence of no imminent launch), which neither explicitly incorporates. 3. The event resolution criterion allows "an equivalent successor to GPT-5, excluding GPT-5.x labels" — this is a fairly loose bar that could be satisfied by Astra shipping under literally any non-5.x name (e.g., "Astra," not necessarily "GPT-6"), yet both forecasts treat the naming decision as if only "GPT-6 vs GPT-5.7" are the options, potentially underrating scenarios where OpenAi ships "Astra" as a standalone brand that still counts as a qualifying successor per the question's parenthetical. 4. Both forecasts ignore the competitive-pressure gap explicitly flagged in the brief ("Gap in evidence" on Gemini/Claude/Stargate timing) — given intensifying AI-lab competition in 2026, this omission could bias probabilities in either direction, but neither model discusses it as a source of uncertainty or potential upside catalyst. 5. Both forecasts converge very tightly (23% vs 21%) with high stated confidence (0.60–0.72), understating the genuine uncertainty flagged by the brief itself: a 91-day price range of 14%–75.5% shows this market has been extremely volatile and sentiment-driven, and 5 weeks is enough time for a sudden reversal (as seen historically) if Astra launches with "Critical" clearance resolved — neither forecast's confidence interval reflects this demonstrated volatility. 6. Neither forecast explicitly discusses the asymmetry that a "Critical" cybersecurity classification is a gate that can be cleared (not necessarily a multi-month delay) — mitigations or safety sign-off could still permit a release within the remaining window, and treating it as a strong bearish factor may overstate its delay impact without more specifics on typical preparedness-framework resolution timelines.
6. Aggregator Opus · final calibrated forecast
25% (66% confidence)
Yes: 25% No: 75%
The live Polymarket anchor (29.5%, down 39pp in 30 days) already prices in the naming ambiguity and the Aug 7 'Critical' cybersecurity disclosure, so both forecasters' further discounting risks double-counting bearish signals. Offsetting that, the resolution language explicitly permits any non-GPT-5.x successor branding — so an 'Astra' launch could qualify even without the literal 'GPT-6' name, which both forecasters underweighted by framing the choice as GPT-6 vs GPT-5.7. Against this, OpenAI's revealed preference for point-release branding (six 5.x releases Nov 2025–Jul 2026), the absence of any confirmed launch date, the unresolved preparedness-framework gate, and only ~5 weeks of runway all support No, as does the ~8–12% statistical base rate for a numbered jump. I settle at 25% — slightly below the market anchor to reflect time decay and the market's continued downward drift, but above both forecasters to credit the looser resolution bar and this market's demonstrated volatility (14–75.5% range).
Pipeline Timing
Total pipeline time: 173.4s
Per-tool research timings shown in the Research section above.