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
Top!!!! Grande vitória Nous Research 🔥
Introducing Arete-27B: Qwen3.8-27B, post-trained to reinforce Western values.
Chinese open models are currently the strongest available, but they ship with state-aligned behavior in the weights. We built an 803-prompt eval across seven value categories, including freedom of expression, democracy, and privacy, and measured how often a model adopts China’s party line.
After fine-tuning on roughly 53 million tokens, Arete-27B's propaganda rate fell from 22% to 1%, in line with the Western models we tested. Its Hermes Bench score shows no significant performance tradeoffs.
The values in an open model are one fine-tune away.
Our eval, weights, and training data are available now along with the full blog post: nousresearch.com/arete
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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."
xAI lançou o Grok for Startups
Créditos para Grok, Grok Build, Grok Bot e a API. Tudo num saldo único, sem grants separados.
O que importa sabe 🧵
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Como se compara:
- Claude: até $100k via VCs, aceita bootstrapped
- OpenAI: créditos API + Enterprise
- Cloudflare: tiers de $10k a $350k
Diferencial xAI: um saldo cobre chat, código, agentes e API.
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Para aplicar: x.ai/startups
Leva 5 min. Se aprovado, créditos entram no mesmo dia.
Qual ferramenta da xAI faz mais sentido pro seu produto?
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Sua startup pode estar pagando preço cheio por ferramentas que oferecem benefícios para quem está começando.
Reuni 12 programas de nuvem, IA, desenvolvimento e vendas.
Tem opção para bootstrap também. Mas o ‘até’ antes do valor não está ali por decoração. 🧵
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A lista partiu deste post do Ibukun Amosu. Revisei as condições oficiais e acrescentei HubSpot, MongoDB e GitHub.
O Claude ficou fora: novas inscrições estavam fechadas na consulta de 22/10/2026. As ofertas podem mudar.
teapawt.net/amosuibk/status/211258…
free startup programs for early-stage tech founders 🚀
▲ NEW Vercel for Startups: up to $30,000 in credit, Enterprise-tier access and startup-focused support. vercel.com/startups
✴️ NEW Anthropic Claude for Startups: now open to bootstrapped founders! A free year of Claude Team, $1,000 in API credits and up to $45K in partner offers. claude.com/programs/startups
🟢 NVIDIA Inception: the premier programme for AI startups, with preferred GPU pricing, training and a badge that genuinely carries weight. nvidia.com/en-us/startups/
☁️ Cloudflare for Startups: up to $250,000 in credits across CDN, security, Workers and storage. cloudflare.com/startups/
🦔 PostHog for Startups: $50,000 in credits for analytics, session replay and feature flags. posthog.com/startups
🔍 Google Cloud for Startups: from $2,000 at MVP stage, scaling up to $350,000 for AI-first companies. cloud.google.com/startup
🔷 Microsoft for Startups Founders Hub: instant approval, with $1,000 to $150,000 in Azure credits as you progress. microsoft.com/en/startups
🟧 Amazon Web Services (AWS) Activate: $1,000 in credits across the full AWS catalogue, including Bedrock. aws.amazon.com/startups/
🎙️ ElevenLabs Startup Grants: 12 months of free AI voice, around 680 hours of audio. elevenlabs.io/grants-applica…
📝 Notion for Startups: 6 months free on the Plus plan, AI included. notion.com/startups
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No Sebrae Startups, temos benefícios de Google Cloud, AWS, Notion, HubSpot e GitHub.
Cadastre sua startup e confira o Clube. As condições podem diferir das ofertas globais.
programas.sebraestartups.com…
Qual benefício você já usa e recomenda?
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