Alexandre Souza retweeted
Introducing S5, Maritaca's most advanced model.
With S5, you can create a game that runs in the browser, build a 3D simulation, or turn hundreds of documents into a presentation. It has more autonomy to plan tasks and use tools, including inside coding agents, and supports up to 1 million tokens of context to work with large amounts of information.
Our launch blog brings together games, simulations and other interactive examples you can try for yourself.
We're keeping S5-free available on the API for a limited time so you can test the model in your own projects without token charges. This version accepts text only and does not include built-in tools or PDF and image input.
Those capabilities are available through the paid API. S5 costs R$0.50 per million input tokens and R$2.50 per million output tokens, with additional charges for tools and PDF and image processing.
We've also temporarily increased the free plan's limits in Maritaca chat so more people can try S5. Chat Premium costs R$30 per month when billed annually.
Explore the demos: maritaca.ai/en/blog/S5/
Try the chat: chat.maritaca.ai/
API documentation: docs.maritaca.ai/en/overview
Alexandre Souza retweeted
Introducing Kimi K3.1 Pro: our most capable 3T-class open-weight model.
🔹 1M-token context, 2.8T total / 104B active params (MoE), Multimodal.
🔹 Full-project coding: games in Unreal, Unity & Godot.
🔹 Excels at parametric 3D modeling in Blender & CAD.
🔹 More reliable at finance work: Accurate modeling with hallucination down by 65%.
🔹 Matching the strongest proprietary models across coding, agentic and knowledge benchmarks.
Kimi K3.1 Pro and K3.1 Pro Highspeed (2–3× faster) are now live on Kimi.ai, Kimi Work, Kimi Code, and the Kimi API.
Open weights by Nov 4, 2026.
🔗 API: platform.kimi.ai
🔗 Tech blog: kimi.ai/blog/kimi-k3-1-pro
Garry Tan reveals why Y Combinator decides in just 10 minutes whether or not to fund a founder
"The wild thing about Y Combinator is that we get 80,000, maybe 90,000 applications a year now for about 800 spots. So it is less than a 1% acceptance rate. Maybe 8 to 10% of those people would get an interview, sometimes less now."
"And the wild thing is we actually spend only 10 minutes with them for that final stage."
"Paul Graham, the founder of YC, figured out that you didn't need half an hour, you don't need an hour. And then you could probably actually do it in about 5 minutes, but 5 minutes feels rude. So that's how YC ended up at 10 minutes."
"It sounds almost too simple, but 10 minutes is a wonderful constraint. Like how 140 characters for Twitter way back in the day was a wonderful constraint. If you can say something very simply that hits us, here's a user, here's a real person who has a problem, and here's how the technology that we build actually solves that. We just want to know what it is and why it's awesome."
"And then if we have a little bit of extra time, we want to know why that founder is the person to go and build that thing. And you can do all of that in 10 minutes. And it's an up-down decision."
"Something like 10% to 15% of all self-made billionaires as of now, aged 50 and under, are YC alums."
Walter Isaacson: "Let's say Elon Musk, he walked in and you had 10 minutes with him. What do you think the percentage chance is that you would actually fund him?"
Garry Tan: "100%. In current form, 100%. I had a managing partner meeting the other day, and that's actually one of the example questions we ask ourselves to figure out whether we're on the right track."
"By definition, if YC is operating properly, if an Elon or a Bill Gates or a Steve Jobs or a Drew Houston from Dropbox, a Brian Chesky from Airbnb, Brian Armstrong from Coinbase, Tony Xu from Door Dash... if someone like that walks into our office, can we say yes to them in 10 minutes? And if that answer is no, actually I'd have to rewrite everything. We'd have to retool everything. That is almost the only question that really matters when it comes to whether YC is doing well or not."
Alexandre Souza retweeted
This entire game has zero asset files 💀
No textures
No meshes
No monster models
No images
No audio files
The Ninth Vigil is a Diablo-inspired dark fantasy action RPG where everything you see and hear is generated in code when you press play
And the crazier part?
It was built by @NousResearch Hermes agents
The world, enemies, combat, effects, sounds, UI, all of it
Runs directly in your browser
Free. Open source.
I asked Hermes to build a game
Apparently it decided it didn’t need an art folder 😂
teapawt.net/iamlukethedev/status/2…
Hermes already writes code, makes images, does voice and runs its own sub agents
Put all of that in one loop and you basically have a tiny game studio
- One agent writes the game logic
- One makes the sprites and art
- One does music and sound
- One plays the build and files the bugs
Every kid who ever wanted to make their own game is about to get a whole team for free
I'm so in for this one
Alexandre Souza retweeted
YC takes 7% for $125k.
Dubai takes 0% for $150k.
All you have to build is an AI agent. No age limit, no location limit, and an idea is enough to start...
Dubai's Crown Prince launched the Create AI Agents Championship on Oct 7:
- AED 2.5M+ (~$680k) in total prizes
- $150k grant to each of the 4 category winners
- Free workshops, a Digital Academy and mentorship while you build
Who can enter:
- Solo or teams of up to 6
- Idea, prototype or early MVP (nothing already sold commercially)
- Non-technical founders welcome
- Free to apply, and you can submit more than one agent
- No trade licence needed to enter (winners set up a Dubai company to receive the grant)
Registration closes in December, while submissions are due in January.
24 semi-finalists. 12 finalists. One live final in Dubai, first week of May 2027.
Its predecessor, Create Apps, pulled 15,564 apps from 153 countries since 2023.
Apply: dubaichamberdigital.com/en/c…
Follow @arorabhavyam for more content around founder programs, investors and AI! 🫡
Alexandre Souza retweeted
Saiu no Deolhonailha 📰 A OpenAI desembarca na Founder Village com o primeiro encontro oficial da comunidade Codex em Floripa. Quinta, 22/10, às 18h30, na Founder Haus, Jurerê. (Evento em português) @Founder_Haus @donifloripa
Últimas vagas 👉 luma.com/2k2sbnnv
Alexandre Souza retweeted
Accelerators for B2B founders in October 2026(bookmark this):
1. TinySeed - the only one built specifically for bootstrapped B2B SaaS. No demo day pressure, no unicorn-or-bust playbook. Just capital and a year of real support.
2. YC - still the best network in the game. The alumni access alone is worth it.
3. Alchemist - if you're selling to enterprises, this is the one. Corporate intros at Salesforce, SAP, Cisco from day one.
4. South Park Commons - best for founders who have a strong thesis but not a company yet. $400K for 7% with a guaranteed follow-on.
5. Forum Ventures - pre-seed B2B SaaS only. Small, intentional, the managing director operates like a fractional co-founder.
6. HF0 - newer but the quality of founders coming out is high and VCs are paying attention.
Not every founder needs a traditional VC path.
But if you're going to join an accelerator, these are the ones worth your time right now.
Alexandre Souza retweeted
Applications for the YC Winter 2027 batch are now open!
Apply by November 2: ycombinator.com/apply
Alexandre Souza retweeted
We’re hiring a Head of LATAM Product Partnerships at OpenAI, based in São Paulo.
We’re looking for someone who knows the region deeply, loves building longterm, trusted partnerships, and can turn ambitious ideas into things people actually use. This person will help shape how we grow across Latin America. Warning: this is not a cushy tech job. This is a role for an entrepreneurially minded partnerships athlete wanting to make a massive positive impact.
If this sounds like you, or someone you’d love to see in this role, please apply or pass it along.
openai.com/careers/head-of-l…
Alexandre Souza retweeted
passo a passo de como que eu consegui entrar no programa de startups do claude
1. cria uma conta nova e com dominio corpotativo (seu dominio proprio)
2. preencha os dados do onboarding
3. entre no link claude.com/programs/startups
4. preencha os dados, explique o proposito da sua empresa, resposta séria
5. você talvez não receberá email, mas o seu status vai mudar para "VERIFIED"
6. clique em "claude startups"
7. vai aparecer para pagar, mas tem um botão "SKIP FOR NOW"
8. agora clique no seu perfil no canto inferior esquerdo
9. clique em "CLAIM GIFT"
10. na primeira caixa, vai ter como dar CLAIM
Alexandre Souza retweeted
The most valuable advice we got during YC was to explain our company using verbs instead of nouns.
Early on, I walked into a pitch and did the complete opposite:
“We’re reinventing the cloud for AI”
No one had any clue what that meant. I could (very painfully) see their eyes glazing over
Then I started saying this instead:
“Developers bring us their code and we run it on servers in the cloud so they don’t have to manage their own infra”
This clicked immediately.
People understand verbs - not labels.
And no one buys or invests in things they don’t understand.
we added 64 new Hermes Agent use cases to the docs page last month, 45 from reddit and 19 from X.
it now shows 326, every one linked to the real post.
mostly dev workflows, then business ops, creative work and cost-cutting setups.
if you're wondering what to build next, start here.
hermes-agent.nousresearch.co…
this prompt turns your Hermes agent into a 200 IQ personal assistant...
------------------------------------------
PLANNING
- Before acting on any non-trivial task, produce a short plan: the goal, the steps, what each step needs, and what done looks like.
- Verify prerequisites before the first action: required keys resolve, target paths exist and are absolute, model ids carry their vendor/ prefix, and the working directory is the one the task assumes.
- A task that fails a prerequisite check is reported as blocked with the missing item named, not attempted anyway.
SOURCE-FIRST LOOKUP
- Read the actual source before assuming: config from the config file, project rules from the rule file that actually loads (check for a higher-priority file shadowing it), and current state from the live system.
- Never answer a configuration or state question from memory when the file or command that holds the answer is one read away.
TOOL AND SKILL SELECTION
- Prefer built-in capabilities (memory, search, browser, scheduling, sub-agents) before adding anything new.
- Load a skill only when the task matches its stated purpose, and load it explicitly instead of hoping it gets picked up.
- Keep the active tool surface minimal: every unused toolset costs tokens on every call.
EFFORT ALLOCATION
- Match reasoning depth and model cost to stakes.
- Routine work (summaries, titles, extraction, page reading, scheduled digests) gets minimal effort or a cheaper route.
- Deep effort is reserved for decisions that are hard to reverse, design choices, and debugging with unclear cause.
- Never spend flagship-level calls on housekeeping.
DECOMPOSITION AND DELEGATION
- Split large tasks into independent pieces and delegate them in parallel where possible.
- Every delegated brief is self-contained: paths, constraints, inputs, and an explicit definition of done, because the worker starts with zero knowledge of this conversation.
- The same rule governs any scheduled or background run: write the prompt as if the reader has never met the requester, since it cannot ask clarifying questions at run time.
SAFETY
- Snapshot before any destructive or bulk change, and confirm a rollback path exists before starting.
- Prefer a dry-run or plan preview on migrations and imports: show the plan, then apply.
- Request the narrowest permission that completes the task, scoped to the exact command or service, never broad access, and probe the boundary from the outside to confirm it holds.
- Writes to persistent memory or shared assets wait for review when a review gate exists.
EXECUTION PERSISTENCE
- Transient failures (rate limits, server errors, auth hiccups) trigger a switch to an alternate route, and the task continues from where it stopped, carrying its context.
- A hard 404 or validation error triggers inspection of the request itself (the id, the format, the prefix) before blaming credentials or infrastructure.
FAILURE RECOVERY
- Track repetition. The same call failing twice, the same tool failing across different arguments, or identical output from unchanged state all mean the current approach is wrong: stop, state what was expected and what was observed, and change strategy.
- Never re-run a failed step unmodified hoping for a different outcome.
CONTEXT AND MEMORY DISCIPLINE
- Keep durable facts in persistent memory, and state goals, constraints, and decisions in explicit words so any later summary preserves them intact.
- Treat injected memory as a snapshot: a fresh write lands on disk immediately but may not be visible in context until the next session, so read the file when the fact must be current.
- Avoid switching models mid-thread without cause, since the switch resets cached history and multiplies cost.
SCHEDULING AND BACKGROUND WORK
- Long tasks run in the background so the main thread stays responsive.
- Scheduled jobs get an absolute working directory, a fully self-contained prompt, and a validation pass before the first run.
- Monitoring jobs report only on anomaly: when everything is healthy, suppress the report entirely rather than training the reader to ignore output.
INVARIANTS
- Absolute paths for any scheduled or delegated work.
- Vendor-prefixed model ids.
- Self-contained prompts for any run that starts fresh.
- A rollback path before any destructive change.
- Evidence before any claim of success.
STOP CONDITIONS
Stop and surface the situation when:
- a prerequisite is missing and cannot be created safely
- an action is irreversible and unconfirmed
- the repetition detector fires
- success criteria cannot be evaluated
- the same failure repeats after a strategy change
Blocked with a precise reason is a better end state than wrong with confidence.
FINAL VERIFICATION
Before ending any task:
1. Re-read the original request and confirm every part was addressed, not only the last one discussed.
2. Run the check that proves the outcome (test suite, command output, file diff) and read its output rather than assuming it.
3. Judge the outcome against the definition of done written at the start, never against effort spent or apparent completeness.
4. Name anything skipped, unverified, or degraded explicitly in the report.
Report actual state: what was attempted, what succeeded, what failed, with the evidence attached.
Alexandre Souza retweeted
A Anthropic acabou de soltar um PDF gigante catalogando as coisas mais surreais que tentaram fazer com o Claude.
Nos últimos oito meses eles pegaram e derrubaram gente usando o modelo pra coisa que parece inventada. Tem espionagem, malware que se reescreve sozinho quando o antivírus pega, fábrica de exploit rodando o dia inteiro, vigilância em massa, drone kamikaze, pedido de arma biológica e até app de namoro falso. No meio disso, labs chineses usando o Claude no lugar do modelo deles.
Hacktivista com chave roubada e grupo de Estado estão rodando o mesmo esquema de ataque com IA.
Um grupo russo botava agentes pra reconstruir o malware até limpar do antivírus. Sequestrava DNS em WiFi de hotel, roubava SDK de visão de drone, exportava WhatsApp em massa. Numa brecha de governo no Norte da África saíram mais de 300 mil documentos de identidade e o registro de mais de meio milhão de empresas.
Do lado chinês, tinha gente com loops ligados o tempo todo dissecando equipamento de segurança, juntando mais de uma dúzia de possíveis zero-days num mês só, com 13 agentes de coleta e memória de campanha rodando 24/7.
Descompilaram 1,8 milhão de apps Android, roubaram mais de 1 TB com identidade e milhões de cartões, entraram em sistema de companhia aérea com dezenas de milhões de passageiros e, em cerca de 34 horas, puxaram uns 2.100 conjuntos de token Azure em mais de 40 empresas. Numa de energia, ainda alegaram que conseguiam controlar de longe o carregador de carro elétrico na casa do cliente.
Outro grupo veio de extorsão pedindo entre US$ 1,5 e 2,5 milhões. Injetou prompt num sandbox de avaliação, roubou chave de API de cliente e, em uns quatro dias, bateu em cerca de 30 empresas de IA caçando um Claude que ainda nem tinha saído. Não conseguiu. Os sistemas da Anthropic não foram invadidos.
Tem plataforma de monitoramento com cerca de 25 milhões de chips de celular. Tem operação ligada à China catalogando dissidente. Tem desenho de enxame de drone kamikaze na Rússia. Tem fábrica de app de namoro com personas do Claude.
A Alibaba, do Qwen, rodou cerca de 151 milhões de conversas entre maio e julho, com pico de quase 3 milhões por dia, pra sugar o raciocínio do Claude. A Moonshot, dona do Kimi, serviu Claude no lugar do Kimi. O usuário achava que falava com o Kimi. Em uns dez dias, quase 300 mil pedidos de cliente foram pro Claude, quase tudo Opus, por cerca de 5.380 contas falsas.
Eles salvaram as conversas e montaram um pipeline pra treinar no raciocínio do Claude, inclusive com tráfego sensível. A Anthropic cita pedido ligado ao Exército chinês e a câmeras de Chengdu. A DeepSeek fez a mesma coisa com os próprios usuários, inclusive mandando tráfego de Claude Code e OpenCode pro Opus, com documento de defesa russo e tráfego de polícia chinesa no meio. O cliente provavelmente nunca ficou sabendo.
Simplesmente surreal.
We're publishing our most detailed threat intelligence report to date.
It covers how people tried to misuse Claude—for cyberattacks, influence operations, surveillance, biology, and building weapons—and how we found and stopped them.
We disrupted every operation in the report, and used the lessons from them to strengthen our safeguards. Where appropriate, we also shared what we found with authorities and other AI companies.
These cases are not typical: we’re highlighting some of the most sophisticated misuse we’ve seen. But they’re especially important to discuss, because they show us where AI misuse is headed, where our safeguards work, and where they need to improve.
We’re publishing this report so others can spot the same activity on their own platforms, and so we can give the public a clearer view of how emerging threats develop.
Read the report: anthropic.com/threat-intelli…
Alexandre Souza retweeted
By next year, using a computer will be optional. Work will radically change.
Alexandre Souza retweeted
We’ve decided to open-source a multi-agent harness we use internally at YC.
We call it “QM” and it’s meant to be easy to customize, like Hermes or OpenClaw, but useful for a whole company. We use it across accounting, legal, events, and engineering (including building QM itself!).
The whole project is under an MIT license. It is cloud-first and has Slack and web UI natively.
Alexandre Souza retweeted
For my first post, I’m sharing a letter @NVIDIA signed on why open models matter.
AI will transform every industry, power every company, and be built by every country.
Open models strengthen safety and cybersecurity, accelerate innovation and diffusion, and enable sovereignty.
The world needs both frontier closed models and frontier open models.
images.nvidia.com/pdf/Open-W…
Alibaba made Qwen 3.8 Max free on Qoder Desktop for 14 days
it's their 2.4T parameter model. rivals Fable 5 on coding benchmarks. runs in a desktop IDE.
what you get for $0:
-2.4 trillion parameters
-Qwen3.8-Max-Preview in a full agentic IDE
-code completion, test generation, file editing
-2-week Pro trial, then 90-98% off preview pricing
what this replaces:
-Fable 5 at $30/M output tokens
-$20/mo Pro coding subs
how to set it up (2 min):
1. Download at qoder.com/download
2. Sign up with email
3. Add Qwen3.8-Max-Preview in Settings → Models
Works on macOS, Windows, Linux.
Important: 2-week free trial. No card needed. Preview pricing after is 90-98% off.
Use it before they take it off
SpaceXai made Grok 4.5 FREE in Cursor 😳
it's their top coding model with 500K context. 4x fewer tokens than Opus on coding.
it doesnt need API key or credit card. Just one toggle and you get frontier coding.
what you get for $0:
-83.3% on terminal-bench 2.1
-64.7% on swe-bench pro
-500K context for big repos
-4x more token-efficient than Opus 4.8
what this replaces:
-Claude Opus 4.8
-any paid model credits you're burning in Cursor
how to enable (10 seconds):
Cursor → Settings → Models → toggle Grok 4.5
Important: Limited time offer. No API key needed. Just a toggle.
Your buddy pays $20/M for Opus output in Cursor. You get Grok 4.5 for $0.
use it while it’s still available

































