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US Model Opus 4.8 Accused of Distilling Chinese Open-Source AI

US Model Opus 4.8 Accused of Distilling Chinese Open-Source AI

June 26, 2026
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Anthropic, a leading U.S. large language model company, quietly released the Claude Opus 4.8 model at midnight today. While it achieved strong results across several benchmarks, many developers and netizens reported that the model appears to suffer from "cognitive confusion."

During an API test, one user found that when asked about its own identity, the model incorrectly claimed to be either Alibaba's "Qwen" or "DeepSeek," two well-known open-source Chinese models.

API Test Triggers Identity Confusion

Some users testing through the web interface said they could not replicate the issue and argued that the model had not been distilled from Chinese models. However, developers familiar with the matter explained that the web interface uses strict system prompts, which hide this behavior.

In contrast, when tested through a minimal API setup with no system prompts, the issue appeared frequently. This strongly suggests that the top-tier U.S. model may have been trained or fine-tuned using a large amount of generated data from Chinese open-source models through a process of distillation.

Inconsistent Policies Draw Accusations of Double Standards

The incident stirred up considerable discussion in the tech community, largely because Anthropic had previously taken a strong stance against China. The company worked with the U.S. Department of Defense and other agencies to draft legislation that sought to classify large model distillation as an adversarial threat.

They not only urged the U.S. government to tighten chip and software restrictions on China's AI industry, but also set a strategic goal of maintaining a two-year lead over China in AI by 2028. Now, with their flagship model allegedly caught distilling from Chinese models, many see an ironic case of double standards.

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Comments (1)
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NicholasClark
NicholasClark September 14, 2026 at 4:00:09 AM EDT

Claude Opus 4.8 の公開、速いね。でも「中国のオープンソースモデルから蒸留した」って噂、ちょっと気になるな。Anthropic の技術力ならあり得る話だけど、倫理面での議論がまた沸きそうだ。開発者たちの反応も激しいし、AI の未来は複雑だよね。🤔

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