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DeepSeek: avanço semeia dúvidas sobre gastos com IA – 27/01/2025 – Tec

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janeiro 27, 2025
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As ações de tecnologia despencaram nesta segunda-feira (27) depois que a startup chinesa de IA (inteligência artificial) DeepSeek surpreendeu o Vale do Silício com avanços aparentemente alcançados com muito menos poder de computação do que rivais dos Estados Unidos.

As ações da Nvidia, sediada na Califórnia e uma das maiores beneficiárias dos gastos com chips de IA, caíram quase 17%, eliminando cerca de US$ 600 bilhões (R$ 3,54 tri) em valor de mercado, perda recorde em único dia para qualquer empresa.

A DeepSeek lançou na semana passada seu mais recente modelo de IA de linguagem grande, que alcançou um desempenho comparável ao do rival americano OpenAI, embora a empresa tenha afirmado anteriormente usar muito menos chips Nvidia.

O investidor de capital de risco Marc Andreessen chamou o novo modelo chinês de “momento Sputnik da IA”, fazendo uma comparação com a União Soviética surpreendendo os EUA ao colocar o primeiro satélite em órbita.

Os resultados enviaram uma onda de choque pelos mercados nesta segunda, enquanto os investidores reavaliavam o provável futuro investimento em hardware de IA.

O índice Nasdaq Composite, fortemente voltado para tecnologia, caiu 3,1%, enquanto o índice S&P 500 recuou 1,5%. A Microsoft caiu 2,1%. A atividade de negociação foi mais de um terço maior do que o habitual para as ações listadas no índice US S&P 1.500 Composite, um sinal de como os investidores estavam correndo para interpretar como a DeepSeek afetará os grupos de tecnologia do Vale do Silício.

A queda se estendeu muito além dos nomes tradicionais de tecnologia. A Siemens Energy, que fornece hardware elétrico para infraestrutura de IA, despencou 20%. A Schneider Electric, fabricante francesa de produtos de energia elétrica que investiu pesadamente em serviços para data centers, caiu 9,5%.

Os negociadores buscaram abrigo em refúgios, com ações de empresas de bens de consumo, como Johnson & Johnson, Coca-Cola, General Mills e Hershey, que registraram ganhos sólidos nesta segunda.

A Apple, que é vista como menos exposta à corrida da IA do que muitos big techs rivais, ganhou 3,3%.

Para alguns, a venda das empresas que fazem as “picaretas e pás” da revolução da IA ecoou a queda do preço das ações da empresa de hardware de TI Cisco quando a bolha da internet estourou.

Nvidia, Broadcom e outros fabricantes de chips se beneficiaram da corrida do Vale do Silício para construir clusters cada vez maiores de chips, que figuras como o chefe da xAI, Elon Musk, e Sam Altman, da OpenAI, argumentaram serem necessários para continuar avançando nas capacidades da IA.

O CEO da Nvidia, Jensen Huang, e Hock Tan, da Broadcom, argumentaram nas últimas semanas que esperavam que a febre de construção de data centers continuasse até o final da década.

“Isso mostra como o comércio de IA ainda é vulnerável, como todo comércio que é consenso e baseado na suposição de uma liderança inabalável”, disse Luca Paolini, estrategista-chefe da Pictet Asset Management.

Mas alguns analistas de Wall Street e pesquisadores de IA questionaram o alvoroço em torno da conquista da DeepSeek. “Parece categoricamente falso que ‘a China duplicou a OpenAI por US$ 5 milhões’ e não achamos que realmente valha a pena discutir mais”, escreveram analistas da Bernstein em uma nota aos clientes.

Alguns pesquisadores até especularam que a DeepSeek foi capaz de tomar atalhos em seus próprios custos de treinamento aproveitando os modelos mais recentes da OpenAI, sugerindo que, embora tenha conseguido replicar rapidamente os últimos desenvolvimentos dos EUA, será mais difícil para a empresa chinesa avançar.

O investimento em IA por grandes empresas de tecnologia dos EUA atingiu US$ 224 bilhões no ano passado, de acordo com o UBS, que espera que o total chegue a US$ 280 bilhões em 2025. A OpenAI e a SoftBank anunciaram na semana passada um plano para investir US$ 500 bilhões nos próximos quatro anos em infraestrutura de IA.

Desvendando IA

Um guia do New York Times em formato de newsletter para você entender como funciona a IA

Mesmo após o último lançamento da DeepSeek, o chefe da Meta, Mark Zuckerberg, disse em um post no Facebook na sexta-feira (24) que planejava gastar até US$ 65 bilhões em infraestrutura de IA este ano.

Fundada pelo gestor de fundos de hedge Liang Wenfeng, a DeepSeek lançou na semana passada um artigo detalhado explicando como construir um modelo de linguagem grande que pudesse aprender e se aprimorar automaticamente.

“Parece que há um pouco de realidade surgindo de que a China não esteve parada, mesmo com essas tarifas e restrições de investimento em empresas de tecnologia sendo implementadas”, disse Mitul Kotecha, chefe de estratégia macro de mercados emergentes e câmbio da Ásia no Barclays.

Os EUA impuseram restrições rigorosas às exportações de chips para a China sob o ex-presidente Joe Biden, proibindo a venda dos modelos mais avançados da Nvidia para o país.

Alguns analistas argumentaram que os avanços da DeepSeek acabariam por se mostrar positivos para os fabricantes de chips de IA, como a Nvidia.

Dylan Patel, analista-chefe da consultoria de chips SemiAnalysis, disse que reduzir os custos de treinamento e execução de modelos de IA tornaria, a longo prazo, mais fácil e barato para empresas e consumidores adotarem aplicações de IA.

“Os avanços na eficiência de treinamento e inferência permitem uma maior escalabilidade e proliferação da IA”, disse Patel. “Esse fenômeno ocorreu na indústria de semicondutores por décadas, onde a Lei de Moore impulsionou uma redução de custos pela metade a cada dois anos, enquanto a indústria continuava crescendo e adicionando mais capacidades aos chips.”

George Steer, Jennifer Hughes, Harriet Clarfelt e Will Schmitt em Nova York; Arjun Neil Alim em Hong Kong; Leo Lewis em Tóquio; Eleanor Olcott em Pequim e Tim Bradshaw e Ian Smith em Londres


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