# JS Denain of Epoch AI says Chinese models lag US labs by about six to eight months

Digest AI · Generative AI & Models · published 2026-09-22T13:37:45Z

Canonical: https://digestai.news/story/js-denain-of-epoch-ai-says-chinese-models-lag-us-labs-by-about-six-to

## Summary

In a podcast with Nathan Lambert, Epoch AI senior researcher Jean‑Stanislas “JS” Denain discussed the state of AI acceleration and the US‑China capability gap. He noted OpenAI’s blog showing a 2× per‑month increase in Codex spending by researchers, but said this does not constitute strong evidence of an imminent self‑sustaining intelligence explosion. Denain expressed uncertainty about how quickly internal metrics at labs might signal a feedback loop, and he highlighted that the public evidence of rapid acceleration remains limited.

The conversation turned to robotics, where both participants agreed that large‑scale industrial automation may be far off the two‑to‑five‑year horizon, citing reliability and regulatory challenges. Regarding Chinese models, Denain estimated the public release gap between Chinese labs and OpenAI/Anthropic to be roughly six to eight months, while acknowledging measurement noise and possible over‑fitting in benchmark indices. He contrasted this with other views that place the gap at two to four months for specific models such as Kimi K3 and GLM 5.2.

## Key points

- Epoch AI’s JS Denain estimates Chinese public model releases lag US labs by about six to eight months
- He cites a 2×‑per‑month rise in Codex spending by researchers but says it isn’t solid proof of imminent AI self‑sustaining acceleration
- Both agree robotics may see industrial gains, but likely over a longer horizon than two‑to‑five years

## Why it matters

Understanding the US‑China model gap and acceleration signals helps investors, policymakers, and labs gauge competitive dynamics and risk timelines.

## Sources

1. [Debating RSI, the US-China Gap, and Jaggedness with JS Denain of Epoch AI](https://interconnects.ai/p/debating-rsi-the-us-china-gap-and) (Interconnects, 2026-09-22)

## Cite

Digest AI, "JS Denain of Epoch AI says Chinese models lag US labs by about six to eight months", 22 September 2026, https://digestai.news/story/js-denain-of-epoch-ai-says-chinese-models-lag-us-labs-by-about-six-to

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