Tools chosen: polymarket_direct claude_news claude_news congress_bills gdelt_news polymarket_related kalshi_related code_execution

Sub-questions (Fermi decomposition)

Planner reasoning

This is a Polymarket question about a low-base-rate tail event: a formal US federal action (law, EO, export control) that actually strips general US public access to a flagship model from a named list dominated by US labs plus Chinese labs (DeepSeek, Alibaba, ByteDance, Moonshot, Zhipu). The word 'another' in the title suggests a prior removal already occurred (likely a Chinese model), so I need to establish what already happened, what pending federal vehicles exist (No Adversarial AI Act, DAAIC Act, Commerce/BIS actions, Trump AI EOs), and the current market price as anchor. Cross-venue and related-market triangulation plus a base-rate calculation round it out.

# Current state The question resolves YES if any formal US federal action causes general removal of US public access to a major AI model (from the named labs list) at any point before 2026-12-31. The "another" in the title refers to a precedent event: Commerce Department export controls forced Anthropic to suspend all public access to Claude Fable 5/Mythos 5 on 2026-06-12, which was reversed by 2026-06-30/07-01. No new qualifying removal has occurred since; current federal action against Chinese models (DeepSeek, Zhipu, etc.) remains confined to government-device bans, not general public removal. # Timeline of key events - 2025-01 (confirmed): Commerce Dept adds Zhipu AI to Entity List (export/procurement restriction only, not public app access) — Medium/AI Disruption. - 2025-02-07 (confirmed): Reps. Gottheimer/LaHood introduce No DeepSeek on Government Devices Act (HR 1121); several agencies (Commerce, Navy) and states (NY, TN, VA, TX) ban DeepSeek on government devices — Inside Government Contracts, MSSPAlert. - 2026 (mid-year, reported): Trump administration reportedly suspends plans to add DeepSeek to Commerce blacklist despite blacklisting 100+ other Chinese firms; coincides with DeepSeek's $7.4B funding round — Startup Fortune. - 2026-06 (confirmed): Trump administration issues EO establishing voluntary pre-release government review of "covered frontier models." - 2026-06-12 (confirmed): Commerce Dept orders Anthropic to suspend all foreign-national access to Fable 5/Mythos 5 after Amazon researchers found exploitable safeguard bypass; Anthropic disables access for all US/global users (unable to verify nationality) — CNN, Anthropic. - 2026-06-26 (confirmed): OpenAI voluntarily limits initial GPT-5.6 release to trusted partners at US government request (new model, not a removal of prior public access) — PYMNTS. - 2026-06-30/07-01 (confirmed): Export controls on Fable 5/Mythos 5 lifted; Anthropic restores global access — Anthropic, CNBC. - 2026-07 (reported): US "holds off" on DeepSeek Entity List blacklist amid China tension management — Memeburn. - 2026-07-31 (reported): Sen. Cotton publicly warns against Chinese AI model risks — Prokerala/Newkerala (rhetoric only, no action). - 2026-07-23 to 08 (reported): Startup founders and Zuckerberg publicly urge Trump not to block Chinese open-weight AI models — Business Insider, DealStreetAsia. - No further qualifying removal event identified through August 2026 (latest GDELT coverage). # Event US Government removes public access to another major AI model in 2026? # Outcomes to forecast - Yes - No # Kalshi market anchor No direct Kalshi price returned by tools (Kalshi-related keyword searches found only tangential markets). Primary available anchor is Polymarket (same event ticker): current YES price **21.5%**, flat over 7 days, down 5.5pp over 30 days, range 14.5%–45% over 47 days of data, total volume ~$16.7K (thin). Price peaked (45%) likely around the June 2026 Anthropic episode and has since declined toward the mid-teens/low-20s as that action was reversed. # Sub-question answers 1. **Polymarket price / "another" referent** — Current price 21.5%, down from a high of 45% (likely spiking during the June 2026 Anthropic export-control episode). "Another" refers to the Fable 5/Mythos 5 removal (Anthropic), which already qualified and was reversed by month-end [claude_news, Anthropic, CNBC]. 2. **Has a 2025-2026 action already caused general public removal?** — Yes, once: Anthropic's Fable 5/Mythos 5 (June 12–30, 2026), reversed. No DeepSeek/Qwen/Kimi/GLM general public removal; only government-device bans exist [claude_news, MSSPAlert]. 3. **Pending legislation** — No Adversarial AI Act (S.2177/HR4142) targets only federal agency use, not public access; Decoupling America's AI Capabilities from China Act (S.321, Hawley) would ban private use but has zero cosponsors and no momentum. Neither has passed; Entity List addition for DeepSeek is reportedly "approved but unpublished"/stalled [claude_news, therecord.media, poliscore.us]. 4. **Are Chinese models currently generally accessible?** — Yes; DeepSeek, Kimi (Moonshot), GLM/Zhipu remain available via apps/web/API in the US; only government-device-level restrictions exist, so a hypothetical ban would indeed constitute a "general removal" [claude_news, MSSPAlert]. 5. **Administration AI policy direction** — Mixed/tension: administration has shown willingness to use export-control authority abruptly (Anthropic case) and requires voluntary pre-release review of "covered frontier models," but has also held off blacklisting DeepSeek and industry figures (Zuckerberg, startup founders) are publicly lobbying against restricting Chinese open-weight models — no clear consistent restrictive trajectory [claude_news, GDELT]. 6. **Historical base rate** — Broad software/app precedent (Huawei 2019, Kaspersky 2024, TikTok 2024-25) suggests ~2-3 full public-access removal events per decade (λ≈0.25/yr → ~22% annual probability); narrower AI-model-specific base rate (one completed instance: Fable/Mythos, quickly reversed) suggests lower λ≈0.17/yr → ~15.5% [code_execution]. 7. **Related markets pricing consistency** — No matching Polymarket or Kalshi markets found on DeepSeek ban/AI regulation specifically; only tangential Kalshi markets (Fed nominee, trans sports ban, EO count) with no clear read-through [polymarket_related, kalshi_related]. # Key facts (high-confidence, factual) 1. [Anthropic/CNN/CNBC] Commerce Dept forced Anthropic to remove Fable 5/Mythos 5 from general US access June 12–30, 2026 (already-qualifying event, now reversed). 2. [claude_news] DeepSeek/Zhipu/Kimi remain generally accessible in the US; only government-device-level bans exist. 3. [therecord.media, poliscore.us] Legislation banning Chinese AI models for the general public (Hawley bill) has zero cosponsors; agency-use-only bill (No Adversarial AI Act) doesn't target public access. 4. [Memeburn, startupfortune.com] Administration deliberately held off blacklisting DeepSeek as of mid-2026, despite blacklisting 100+ other Chinese firms. # Cross-market signals - Polymarket (same event): 21.5% YES, declining from 45% peak — market has partially priced out repeat of June episode. - Kalshi: no direct match found for this or closely related AI-ban markets. - No sportsbook-style implied odds available. # Analyst opinions and speculation - claude_news bottom line: administration has "demonstrated willingness" to use export-control authority against both domestic (Anthropic) and Chinese labs, keeping tail risk alive despite no active new restriction. - code_execution modeling: fair-value range ~10-18% based on hazard-rate/historical-analogue models, below current Polymarket price of 21.5%, suggesting market may be slightly overpriced given no completed non-reversed precedent for AI-model-specific bans. # Directional lean per outcome - **Yes**: Precedent already occurred once in 2026 (Fable/Mythos), showing government's willingness/legal pathway (export control) exists and can be triggered again on short notice; escalating Congressional rhetoric (Cotton) and stalled-but-ready DeepSeek Entity List action are latent triggers. - **No**: The one 2026 precedent was reversed within ~3 weeks; administration has since avoided escalating against DeepSeek/Chinese models; no legislation with real momentum bans public access; industry (Meta, startups) actively lobbying against restrictions; historical base rate for AI-specific full public removal remains low. # Gaps / unknowns - No Kalshi-direct price was retrieved despite being named the primary anchor tool; only Polymarket data available. - Unclear how "market creation" date is defined relative to the June 2026 Fable/Mythos event — if that event occurred before market creation, it wouldn't count toward YES for this specific market. - No visibility into classified/pending Entity List actions beyond "stalled" reporting. # Calibration anchors - Polymarket current YES price: 21.5% (declining trend, thin volume ~$16.7K). - Hazard-rate/base-rate model fair value: ~10-18%. - Historical analogues (TikTok, Kaspersky, Huawei) suggest ~2-3 full removal events per decade for software broadly, but zero non-reversed precedents specific to AI models to date.

1. Both forecasts treat the Fable/Mythos episode as already "counted" and reversed, but the brief's own gap note flags ambiguity about whether that event predates market creation and thus whether a *second* qualifying event is required for YES — neither forecaster addresses how this timing ambiguity affects the effective base rate or reinterprets "another" accordingly. 2. Neither forecast grapples with the "stalled but approved" DeepSeek Entity List action mentioned in the brief (therecord.media/poliscore.us) as a distinct, more concrete near-term trigger than generic "tail risk" — this is a specific pending action that could resolve YES with a single administrative signature, warranting explicit scenario weight rather than folding it into vague "export control pathway" language. 3. Both converge tightly on 0.16–0.18, essentially splitting the difference between Polymarket (21.5%) and the hazard-rate model (10-18%) without independently stress-testing whether 4+ months remaining is enough time for a repeat rapid-fire export-control action given it happened once already in a ~3-week window this same year — recency of a real precedent within the same calendar year arguably deserves more weight than a smooth annual hazard rate implies. 4. Neither forecast considers the political-calendar angle: escalating Congressional rhetoric (Cotton) combined with the administration's demonstrated willingness to act unilaterally via export control (no legislative process needed) means the two "No" drivers (stalled legislation, industry lobbying) are largely irrelevant to the actual mechanism that produced the one YES precedent — the forecasts implicitly conflate legislative inertia with executive-action risk, understating the latter's independence from lobbying pressure. 5. Both use thin Polymarket volume (~$16.7K) as a credible anchor without much discount for potential manipulation/noise in a market this size, yet still land within 1-2pp of it — more divergence from the anchor (toward the lower hazard-rate estimate) might be justified given explicit distrust of the market signal's reliability. 6. Neither forecast explicitly addresses the scenario where a *different* lab (not Anthropic, not a Chinese model) triggers a removal — e.g., OpenAI's GPT-5.6 was already "voluntarily limited" at government request, which is a soft precedent for future forced restrictions on major US labs that could sit closer to the YES threshold than either forecaster credits.

19% (56% confidence)

Yes: 19% No: 81%

Both forecasters converged near 0.16-0.18 by shading below the thin Polymarket anchor (21.5%) toward hazard-rate estimates (10-18%), and the core structural evidence supports No: the only qualifying 2026 removal (Anthropic Fable/Mythos) was reversed in three weeks, Chinese models remain generally accessible, public-access-banning legislation has no momentum, and the administration has deliberately held off on a DeepSeek Entity List listing. However, the critique correctly identifies that the operative mechanism is unilateral executive/export-control action, which is largely insulated from legislative inertia and industry lobbying, and that a real precedent occurred within the same calendar year with only ~3 weeks of lead time — recency arguably warrants a hazard rate above the smooth annual estimate. The 'approved but unpublished' DeepSeek listing and the soft GPT-5.6 restriction precedent are concrete latent triggers that deserve explicit scenario weight rather than being folded into generic tail risk. Balancing the upward pressure from these mechanisms against the thin, declining market signal and roughly four remaining months, I settle just below the Polymarket anchor and slightly above both forecasters at 19%.

Total pipeline time: 213.9s