Anthropic Accuses Alibaba Of Running Major "Adversarial Distillation" Campaign To Extract Claude Capabilities

Anthropic has accused Alibaba Group of orchestrating one of the largest known efforts by a Chinese company to extract capabilities from a leading U.S. artificial intelligence model, according to a letter the AI company sent to several U.S. senators and White House officials.
The letter claims that operators linked to Alibaba’s Qwen AI lab used nearly 25,000 fraudulent accounts to conduct 28.8 million exchanges with Anthropic’s Claude model between April and June. The activity focused on the model’s most advanced functions, including software engineering and agentic reasoning, in what Anthropic described as an attempt to replicate those capabilities at far lower cost through a process known as adversarial distillation, Bloomberg reports.
Anthropic said the campaign represented the most significant effort yet by a Chinese firm to leverage outputs from top U.S. models to accelerate its own development. The company warned that such distillation attacks are being carried out at industrial scale and that the resulting systems often lack the safety measures built into frontier U.S. models.
"These distillation attacks are carried out illicitly, systematically, and at industrial scale to harvest US Al capabilities across frontier labs and repackage them as their own without incurring the training and R&D costs required to train US frontier models," Anthropic wrote in its letter.
Alibaba declined to comment. An Anthropic spokesperson declined to discuss specifics of the letter but stressed the need for coordinated action between government and industry to address the issue.
The practice has alarmed US developers to the point that Anthropic, OpenAI and Alphabet Inc.’s Google have joined forces to share information about distillation attempts that violate their terms of service. Anthropic and OpenAI have each warned that Chinese AI startups, including DeepSeek and Minimax, have employed distillation to develop their own models. -Bloomberg
The letter arrives as U.S. policymakers consider new measures to restrict Chinese access to American AI capabilities. Sen. Bill Hagerty, R-TN., and Sen. Andy Kim, D-NJ, are preparing an amendment to defense legislation that would blacklist or sanction Chinese firms found to improperly use U.S. model outputs for training competing systems. A related bipartisan bill in the House, sponsored by Rep. Bill Huizenga, R-MI, and Rep. Sydney Kamlager-Dove, D-CA, is also under consideration for inclusion in the annual defense measure.
Anthropic’s letter noted that the Alibaba-linked activity continued after a White House memo in April directed agencies to crack down on large-scale exploitation of U.S. AI models through proxy accounts. The company urged the administration to take stronger steps to halt the practice, including clarifying antitrust rules to allow greater information sharing among U.S. firms and imposing penalties on entities engaged in systematic distillation.
The accusations add to existing pressure on Alibaba. Earlier this month, the Defense Department added the company to its list of Chinese firms designated as supporting the People’s Liberation Army. Alibaba has denied any military affiliation and filed a lawsuit this week seeking to overturn the designation.
The letter also comes at a moment of friction between Anthropic and the Trump administration. Less than two weeks ago, the Commerce Department imposed export controls on two of Anthropic’s newest models, Fable 5 and Mythos 5, citing national security concerns. Anthropic disabled access to those models for all users while it works to comply with the restrictions.
Anthropic said the Alibaba campaign fits a pattern seen in earlier efforts by other Chinese developers that the company flagged publicly earlier this year. The firm has joined OpenAI and Google in sharing information about suspected distillation attempts that violate their terms of service. Those companies have argued that the practice allows Chinese labs to acquire advanced capabilities without incurring the full research and development costs or implementing comparable safety controls.
Badenoch blasts 'moaning' female Labour MPs over Burnham jobs 'quota'

Kemi Badenoch has told Labour women to earn a job in Andy Burnham's Cabinet instead of demanding they are handed jobs because of their gender.
The Tory leader lashed out today amid reports that female MPs are demanding the de-facto new prime minister introduce a 50:50 gender split 'quota' in his government.
Amid reports that former foreign secretary David Miliband is being lined up to return to the role, possibly with his brother Ed as Chancellor, one female minister also complained that Burnham could not have 'more Milibands than women' in the top posts.
But in a scathing article in the Times today Mrs Badenoch told them to 'stop moaning' and get chosen on merit instead of retreating into 'more of the failed identity politics that is holding back our country'.
'There are many, many reasons why you shouldn't have any Milibands in the cabinet,' she said.
'But complaining that the boys haven't given them the right jobs or that the boys are taking all the jobs, just shows that Labour's women still don't get it.'
The idea of quotas was also attacked by Baroness Jacqui Smith, Labour's Skills Minister.
Asked by Times Radio if Mr Burnham should reserve jobs for women, she said: 'No, I think what Andy Burnham should be doing is building the very best team around him to change this country.'
A letter written by the Women's Parliamentary Labour Party has called on Mr Burnham to ensure a 50:50 split between men and women in government jobs
Amid reports that former foreign secretary David Miliband (above, right, in 2010) is being lined up to return to the role, possibly with his brother Ed as Chancellor, one female minister complained that Burnham could not have 'more Milibands than women' in the top posts
But Mrs Badenoch told them to pipe down and get chosen on merit instead of retreating into 'more of the failed identity politics that is holding back our country'
A letter written by the Women's Parliamentary Labour Party and seen by the BBC has called on Mr Burnham to ensure a 50:50 split between men and women in government jobs after he succeeds Sir Keir Starmer.
'We are asking you to demonstrate this change from day one and address the toxicity and misogyny within our own party and government,' it said.
Labour has never had a female leader, while the Conservatives have had three, and Mrs Badenoch urged the government to follow its meritocratic example.
'If you run a meritocracy, then you do not have to worry about jobs for the boys,' she wrote.
'Every woman who is a Conservative MP, every woman who has ever won the leadership, has had to fight to get where she is.
'By contrast, Labour women are demanding guarantees from Burnham. But the truth is he doesn't have to give any guarantees.
'If none of Labour's women are prepared to get their hands dirty and challenge him for the leadership, their demands are toothless.'
'In fact, it's quite revealing that the women's parliamentary Labour Party has written to Burnham asking him to commit himself to at least 50 per cent female ministers.
'This has nothing to do with meritocracy. It is yet more of the failed identity politics that is holding back our country.'
Venezuela Fury and Noah Price subsidising their life by livestreaming

Venezuela Fury and her husband Noah Price look to be making their own way in the world by raking it in from their lucrative social media accounts.
The influencer daughter of Tyson and Paris Fury, 16, has become an internet sensation after tying the knot with her husband Noah, 19, earlier this year.
Since getting married and moving in together the couple have been earning thousands of pounds a month, livestreaming their life as newlyweds in their static caravan in the East Riding of Yorkshire.
And fans can't get enough of their regular life updates on TikTok and Kick, which have proved to be very profitable for the pair.
They look to be supporting themselves after Noah denied that he was given £5million by Venezuela's family as a wedding gift.
Despite his wife's huge family wealth, an estimated combined £160 million, Noah recently told his Kick followers that he 'pays for everything' for the couple.
Making light of the claims about Venezuela's millionaire financial status, Noah said: 'I actually pay for everything unfortunately. You'd expect the millionaire to pay for it wouldn't you.'
Venezuela Fury and Noah Price are earning thousands livestreaming their caravan life - after her new groom insisted he pays all the bills and denied he had £5m handout from her dad
The influencer daughter of Tyson and Paris Fury , 16, has become an internet sensation after tying the knot with her husband Noah, 19, earlier this year
Venezuela then asked their fans: 'Do you think I am a millionaire?'
Noah joked: 'She isn't a secret millionaire guys', before she broke into song and sang: 'But I live like a millionaire!'
But it seems according to estimated calculations from their social media work, Noah and Venezuela can more than afford to support themselves.
Noah has been livestreaming on platforms such as Kick and TikTok, where viewers can send paid gifts or donations.
He was previously encouraging viewers to send gifts on his honeymoon during livestreams, suggesting this is one revenue stream.
Both Noah and Venezuela have built substantial followings on Instagram and TikTok. They can potentially earn money through sponsored posts, brand collaborations, affiliate links and creator payouts.
Kick allows its creators to take home 95 per cent of the £4.99 subscription cost that fans pay.
Streamers keep 100 per cent of direct tips and donations, minus minor standard payment processing fees.
It is unclear how many subscribers Noah currently has because this information is hidden, but he does have 7,200 followers which is publicly viewable.
An industry insider has suggested Noah is making around £400 per video on TikTok, while Venezuela is likely to make £2,000 due to her following count of 1.3 million.
An industry insider has suggested Noah is making around £400 per video on TikTok, while Venezuela is likely to make £2,000 due to her following count of 1.3 million
In one video on their honeymoon, Noah asked his followers if they'd give them some more gifts now that they were married.
In a TikTok live viewed by 20,000 he said: 'Keep liking our videos people, keep sending gifts.'
After saying thank you to several of his followers he joked they should stick around on the livestream and 'watch Venezuela punch me in the mouth'.
The other half of the honeymooning couple said: 'I am, honestly!'
Noah previously confirmed that the pair don't share their finances after they were asked whether they have a shared bank account.
'She earns her money, I earn mine,' said Noah, as Venezuela joked: 'Yeah, what you gonna do about it.'
Noah went on to debunk the rumour that Tyson gave him £5million when he tied the knot with his daughter as he insisted: 'No Tyson did not give me £5million'.
Meanwhile Venezuela is being eyed up by executives for a fly on the wall TV series.
Noah went on to debunk the rumour that Tyson gave him £5million when he tied the knot with his daughter as he insisted: 'No Tyson did not give me £5million'
Boasting 1.3 million TikTok followers, Venezuela is already entertaining fans with her honest musings and candid moments, from cooking to kitting out her and Noah's static caravan home.
And following the success of the Netflix series At Home With The Furys, it is no wonder bosses are wanting to draw on the Fury popularity.
A TV insider said: 'The couple are not A-list celebrities but everyone has become obsessed with their love story.
'People are genuinely intrigued by them. Whether it’s the fact they have married so young, Venezuela’s famous family or their gypsy lifestyle, they have the ‘X factor'.
'Several TV executives think a proper fly-on-the-wall series following their lives as newlyweds in the gypsy community would be fascinating,' they told The Sun.
It is thought Netflix would be likely to produce the series due to their already established relationship with the Furys.
Venezuela's representatives told The Daily Mail: 'We have many offers on the table regarding Venezuela which we are discussing.'
