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Radar · Model frontier and open weights · T2 · 2029 · THESIS

Chinese labs hold the open-weights lead through 2029

On each of 2027-12-31, 2028-12-31, and 2029-12-31 the highest-scoring open-weights model on the Artificial Analysis Intelligence Index is developed by a lab headquartered in mainland China.

THESISshiftindicators on trackregistered 2026-09-08Artificial AnalysisDeepSeekAlibabaMoonshotZ.aiMiniMaxByteDanceTencentBaiduStepFun

ClaimOn each of 2027-12-31, 2028-12-31, and 2029-12-31 the highest-scoring open-weights model on the Artificial Analysis Intelligence Index is developed by a lab headquartered in mainland China.
Consensus (implied)50%implied from Artificial Analysis open-weights models page · 2026-09-07
Distance0.00log-odds · in line with consensus
My confidence50%80% CI 35–65%
Engine43%-7 pts vs me · council-only:log-odds-mean
Falsifies ifOn any of the three snapshot dates the top open-weights model is from a lab headquartered outside mainland China.
HorizonDecember 31, 20291169 days · by end-2029 · milestone ladder

Why it matters

If the best weights an enterprise can run on its own hardware keep coming from China, sovereign-AI and procurement policy collide with engineering reality for every regulated buyer in the US and Europe. That tension shapes where inference capacity gets built and which models it is allowed to run. A US open-weights comeback would remove the tension; the thesis says it does not arrive.

Probability over time

0%25%50%75%100%09-0709-0709-0809-1209-1209-1909-1909-2610-0310-1010-1710-1710-1810-1810-19deadline

Registered at 50% on September 8, 2026. Engine repriced 14 times; now 43%.

Milestone ladder

Dated rungs. Each is scored on its own; the thesis does not get credit for the ladder until the rungs land.

0%50%100%2026-09-30m165%2027-12-31m275%2028-12-31m365%2029-12-31m455%

filled bar · my probabilityhollow dot · engineamber date · due, awaiting adjudication

m1 · 2026-09-30 · 65% · DeepSeek publishes the V4-Pro-0813 build weights to Hugging Face. on the Ledger ↗

m2 · 2027-12-31 · 75% · Top open-weights model on the AA index is from a mainland-China lab.

m3 · 2028-12-31 · 65% · Top open-weights model on the AA index is from a mainland-China lab.

m4 · 2029-12-31 · 55% · Top open-weights model on the AA index is from a mainland-China lab.

Leading indicators

Registered thresholds. Status is computed from the latest public reading.

Developer HQ of the top open-weights AA modelno data

— boolean (1 = mainland China HQ)

10no data yet

on track == 1 · off == 0artificial-analysis ↗

connector returned no usable reading · checked 2026-10-19

Hugging Face downloads, Meta Llama organizationon track

19.3M downloads per month

30M60M

on track < 30M · off >= 60Mhf-hub ↗

series as of 2026-10-19

Count of Chinese-lab open-weights models in the AA top 20 overallno data

— count

31no data yet

on track >= 3 · off <= 1artificial-analysis ↗

connector returned no usable reading · checked 2026-10-19

What would move me

Would raise my number

  • DeepSeek or Qwen release a model within 4 points of the overall AA leader in 2027.
  • Meta or OpenAI publicly deprioritize open-weights releases.
  • Chinese labs keep quarterly flagship cadence despite export controls.

Would cut it

  • A US or European lab open-weights a model that takes the top open spot for a full quarter.
  • Chinese labs move flagship releases to closed APIs only.
  • Artificial Analysis reclassifies restrictive-licence Chinese models as not open.

Council · 43%

6 personas on one model (openai/gpt-5.6-sol); other vendors were unavailable this run, so read this as one model's persona-averaged view.

43%

grid-and-power-planner · openai/gpt-5.6-sol

Reference class: the short 2025–2026 Chinese open-weights leadership streak, tempered by rapid frontier turnover and prior episodic releases from Meta, OpenAI, Google, and NVIDIA. China has several qualifying labs, a large 2026 score margin, and a demonstrated preference for releasing strong weights, making 2027 more likely than not. But HIT is conjunctive across three year-ends: one near-frontier non-Chinese release, unfavorable release timing, or leaderboard/label discontinuation causes a MISS. The Meta download indicator measures adoption, not model quality, while the decisive leaderboard indicators are unavailable. Strong correlation across years prevents simply multiplying marginal probabilities, but uncertainty grows materially by 2029. This puts me modestly below the stated 0.50.

41%

semiconductor-supply-chain-analyst · openai/gpt-5.6-sol

I use fast-moving AI benchmark leadership as the reference class: incumbency helps, but a 1–3 year lead rarely survives without repeated releases. The supplied baseline is unusually strong—a 60–38 gap—and China has several qualifying labs, so the thesis is not dependent on one roadmap. I assign roughly 0.78, 0.69, and 0.61 marginal chances for the three snapshots. These outcomes are positively correlated because open-weight strategy is persistent, lifting the conjunction above the independent product, but one well-timed Meta, OpenAI, Google, Mistral, or NVIDIA release causes a miss. Exact-date sampling, benchmark changes, and discontinuation add downside. Meta-Llama downloads indicate ecosystem reach, not frontier performance.

45%

enterprise-cio · openai/gpt-5.6-sol

Reference class: repeated year-end leadership in fast-moving model benchmarks, where incumbency helps but three-year persistence is uncommon. The supplied baseline shows a large 60-to-38 lead and several qualifying Chinese labs, reducing dependence on one developer. I estimate conditional snapshot probabilities of roughly 0.82 for 2027, 0.78 for 2028 given success, and 0.74 for 2029 given both prior successes. Compounding gives 0.47; I reduce this to 0.45 for leaderboard or label discontinuation and resolution ambiguity. Meta downloads measure distribution, not frontier quality. A single near-frontier open-weight release from a US or European lab can cause a miss, making 0.50 slightly optimistic.

41%

credit-analyst · openai/gpt-5.6-sol

Using annual country-level leadership retention on fast-moving model benchmarks as the reference class, I assign 0.80 for 2027, then conditional probabilities of 0.74 and 0.71 for the next two snapshots. Their product is 0.42; a small haircut for leaderboard or label discontinuation yields 0.41. The supplied 22-point baseline gap and depth across Moonshot, Z.ai, Qwen, and DeepSeek support persistence, while Meta downloads measure adoption, not index capability. Exact-date conjunction, rapid benchmark turnover, and one near-frontier US or European open-weight release create substantial failure risk. With no current AA reading, I am below the forecaster’s 0.50.

44%

geopolitics-policy-analyst · openai/gpt-5.6-sol

I use the reference class of leadership persistence on fast-moving model benchmarks, with roughly 0.20–0.30 annual displacement risk. The large 2026 score gap and breadth of qualifying Chinese labs support about 0.78 for 2027, then conditional retention near 0.77 and 0.75 for the next two snapshots. Multiplying these conditional probabilities and allowing modest leaderboard-discontinuation risk gives about 0.44. Outcomes are strongly correlated, so multiplying the forecaster’s unconditional milestone probabilities would be too punitive. The main risk is a US or European lab releasing near-frontier weights shortly before any year-end; Meta’s download scale shows ecosystem capacity but not benchmark leadership. The unresolved, expired DeepSeek milestone provides no positive evidence.

42%

superforecaster-statistician · openai/gpt-5.6-sol

Base rate: I use 0.30 for one country retaining leadership on a fast-moving technology benchmark at three consecutive annual snapshots. I adjust upward because mainland China had multiple competitive labs, had led since early 2025, and held a reported 22-point baseline advantage, making persistence less dependent on one vendor. I adjust downward for the strict three-leg conjunction, rapid benchmark/model turnover, a plausible near-frontier open-weight release from a non-Chinese lab, and the rule making leaderboard or label discontinuation an automatic miss. The missing current leaderboard readings prevent confirming that the September 2026 lead persisted. The three outcomes are strongly correlated, so simply multiplying the milestone probabilities would over-penalize the thesis.