Ivan Costa

Vehement thinker. Contrarian. Don't believe in me, do your own research.
Disclaimer: tweets are mine ONLY, and thus do not represent my employer.

[Ivan Costa @ivanocj]

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Just use Java
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[ℏεsam @Hesamation]

Fable 5 isn't nerfed, it's SLAUGHTERED.

the problem isn't even the model itself, but the hard guardrails Anthropic has set in place.

[Dillon Mulroy @dillon_mulroy]

a good engineer with kimi 2.7 will out perform an average engineer with fable any day of the week

[BridgeMind @bridgemindai]

FABLE 5 CAME BACK NERFED.

We re-ran the July 1st version of Claude Fable 5 on BridgeBench.

The results are brutal:

Debugging: 86.2 → 25.9
Refactoring: 73.6 → 38.4
Hallucination: 75.9 → 61.7

The new guardrails are kicking in on way too many tasks and falling back to Opus 4.8.

This is not the model that got banned.

Anthropic owes everyone an explanation.

[Glenn Greenwald @ggreenwald]

É estarrecedor, mas também revelador, como Alexandre de Moraes pode permanecer no STF e continuar julgando e prendendo pessoas depois que todos vimos as provas de que Vorcaro/BM pagou à empresa de sua família pelo menos R$ 80 milhões. Tudo isso sob um contrato obsceno de R$ 129 milhões que sua esposa negociou e enviou diretamente a Vorcaro, e o casal então comprou dezenas de milhões em novos imóveis.

O tratamento extremamente favorável do STF em relação ao BM começou quando Dias Toffoli — cuja família também recebeu enormes quantias de dinheiro de pessoas ligadas ao banco — viajou em um jato particular para uma partida de futebol no Peru com o advogado petista @augustodeAB, que representava diretores da instituição. Poucos dias depois, Toffoli ordenou que todo o processo do Banco Master fosse mantido em sigilo absoluto.

Você não encontrará um advogado respeitável que diga que R$ 129 milhões é uma quantia razoável ou compreensível para qualquer profissional, mesmo o mais renomado, quanto mais para uma advogada comum como Viviane de Moraes. Além de seu papel como esposa do ministro, ninguém consegue explicar o que poderia justificar essa riqueza geracional transferida ao casal por esse banqueiro bilionário, corrupto e ladrão.

E esqueceu-se, embora não devesse, que a Globo noticiou que Vorcaro conversou com Alexandre de Moraes no dia de sua prisão sobre uma operação, e que Xandão também se encontrou com ele nas festas.

Não há escândalo judicial pior em nenhum lugar do mundo, pelo menos na última década. Mesmo assim, ele permanece impassível, com o mesmo imenso poder sobre o país e a vida das pessoas, como se nada disso tivesse acontecido.

[Ivan Costa @ivanocj]

@Chara9933845474 @EricPatnoudes @AlexFinn @grok @grok
whats the cost of fully maxed studio m3 ultra?

[Ivan Costa @ivanocj]

@nibelheim @thsottiaux Codex app does exist for Intel Macs, wake up @nibelheim

[Nayib Bukele @nayibbukele]

The key to saving the environment is not looking backward, it’s moving forward.

I realized this the first time I visited Italy twenty years ago. Everything was clean and green. The rivers sparkled. The lesson for me was obvious: the answer is not underdevelopment. The answer is progress.

When China was poor, the air was so polluted that people could barely see the blue sky. Today, blue skies have returned to their cities. Development does not only create wealth, it also provides the resources needed to restore and protect the environment.

Some environmentalists want us to preserve every aspect of our biodiversity, including the mosquitoes for example, so that researchers can fly in once every ten years from their universities (which build particle accelerators and billion-dollar laboratories with their pocket money), study our ecosystems, and count how many people died from dengue outbreaks.

They want to buy our air through carbon credits. If carbon credits were such a great deal, they would be selling them to us, not the other way around.

Cleaning every river, lake, and water source in El Salvador, and ensuring they remain clean and sparkling, would cost roughly $12 billion. Where is that money supposed to come from without economic development? Carbon credits?

The path forward for our country is the path of Japan and Singapore, not the path of the Congo.

[Ivan Costa @ivanocj]

@DPassariol @DOCENTEMONTEIRO @ecoviasponte é a ponte Rio Niterói sim, perceba os petroleiros ao fundo na direção de Magé / Teresópolis.

[shirish @shiri_shh]

Lovable CEO realizing their biggest model provider is now their biggest competitor.

[Nayib Bukele @nayibbukele]

The best hospital in Central America.

With every medical specialty, the most advanced technology in the world, and top-quality care.

Public. Dignified. Free. For everyone.

[Ivan Costa @ivanocj]

@rachaelbereba @peterjordan cadê seu direito de imagem? 😆

[Ivan Costa @ivanocj]

@Hoang_HQ Nice except that she is not really the one playing the piano... Elton John does it 100%...

[Secretary Marco Rubio @SecRubio]

Primeiro Comando da Capital and Comando Vermelho are two of the most violent criminal organizations in Brazil. Their reach extends throughout our region and into our country. 

Today, I designated these organizations as Foreign Terrorist Organizations and Specially Designated Global Terrorists. 

The Trump Administration will continue using every available tool to protect our national security interests and deny funding and resources to narco-terrorists.

https://t.co/x3cPYjelwZ

[DeepSeek @deepseek_ai]

We are making our discount permanent! 🎉

Enjoy building with DeepSeek-V4-Pro and bring your innovative ideas to life! 🚀

[Bryan Johnson @bryan_johnson]

How to avoid tons of life problems:

go to bed on time.

[Mitchell Hashimoto @mitchellh]

Fork your dependencies, trim them to only your use case, never update unless it breaks for your users. I’ve been vocal about this for 10+ years. I’ve always said that updating is way riskier than latent bugs (which can be tracked and CVEs monitored).

If you are updating a dependency, it’s on you to analyze every single commit in the full transitive set of dependencies. If you dont see anything compelling, dont update!

I remember at HashiCorp once in awhile an engineer would try to update a dep or replace a DIY lib with an external one and id always ask “show me the commit we need.” Dont update for the sake of it.

Feeling pretty swell about this mentality with all the supply chain attacks happening.

[Ivan Costa @ivanocj]

@elonmusk Not sure if this is legit. Sent anyways...

[Ivan Costa @ivanocj]

@Polymarket @grok where is the official link for this information?

[Paulo @pauloap]

O Emílio deu uma grande lição de vida agora no Pânico

Assistam aí, vale a pena demais... o véio é foda

[N𝕖𝕙𝕕𝕦𝕞 @onlyCFrancisco]

Baby back to life, no panic no rush, a professional who is aware of his duties. Remarkable