building @trypalette_ai (YC S26)
San Francisco
Joined February 2026
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Today we’re launching Palette!
Built by MIT AI researchers, Palette unifies fragmented creative tools into a single multimodal generation engine.
Now, enterprise teams and content creators can generate, edit, and automate brand-consistent video, ads, and training media entirely through natural language.
Say goodbye to manual, one-off content grinds and hello to scalable media pipelines.
Learn more at palettelabs.com and try us out at studio.palettelabs.com
@_josephine_l_ @trypalette_ai
Introducing Palette Flow:
Create → Post → Learn → Improve ↻
Your brand. A marketing workflow that gets smarter.
Watch it work ↓
everyone should use prized
Coding agents shouldn’t stop when you close your laptop.
With one command, Prized brings the power of the cloud to Claude Code, Codex, and all the tools you already use, without changing your local workflow.
Now live on @ycombinator
lesgooo
@OneTriangleAI (YC S26) is building the fastest lightweight, cheap inference and hosting @deepseek_ai V4 Flash today at $0.15/M input and $0.35/M output tokens. Live at onetriangle.ai/.
Our group of @MIT grads and olympiad medalists from @GoogleDeepMind, @JaneStreetGroup, and @NeurIPSConf /ICML publishers are setting a new standard for cost and latency efficiency using KV cache optimizations.
absolutely goated
We beat out @nvidia's KV cache transfer for KL divergence, and we're using it to build the fastest inference @TryTrustAI at @ycombinator.
17.8% less TTFT, $641 less per 1M requests, and 82.5% held-out top-1 agreement on Qwen 32B, prefilled from Qwen 8B.
Serena Pei retweeted
we’re launching Codag (@ycombinator S26) - the compression and control layer for agent tools.
we started with logs. then customers pulled us into searches, tests, builds, and api responses.
the pattern was always the same: agents burning context on repetitive output, with teams unable to see where the tokens went.
Codag now cuts input-token usage ~3x at answer parity and gives teams visibility across their agent stack.
agents are becoming the primary users of software - companies are adding agents, models, providers, and MCP servers faster than they can measure or control them. most cannot answer which tools their agents invoke, what those calls cost, or where the waste is.
we’re building the layer between them and everything they read.
90+ engineering orgs already use Codag today to reduce that spend and see agent tool usage across provider. find out more and book a demo at codag.ai/
start your doomscrolling today😊
Introducing Palette Originals — short films, anime, and dramas made to doomscroll.
Start watching in the Explore tab ↓
studio.palettelabs.com/studi…
enjoyed chatting and thanks for the feature! @vaishnavisai96
notacoderin.wordpress.com/
Serena Pei retweeted
seedance 2.5 is officially live on studio.palettelabs.com/studi…
the best models should be one click away. generate with seedance 2.5, edit anything in the video with natural language, and keep iterating without leaving the studio.
🤖 Made with AI
insane
Introducing Instaplay: Make or Play Anything
The world is burning trillions on AI to make us more productive - almost none of it has made life more fun. @InstaplayAI is changing that.
100,000+ users are already exploring what games can become when anyone can make one. Creators have already built multiplayer zombie FPS campaigns, interactive classroom lessons, and someone even proposed with a game.
Our mission is to make AI the most powerful force for fun in the world: instaplay.ai
check us out! studio.palettelabs.com/studi…
Serena Pei retweeted
Y Combinator @ycombinator Launches of the Week:
(This round-up is for informational purposes only, and in order of the date/time of the launch, from earliest to latest.)
1) Mireye @mireyehq: Founded by Ansh Chokshi @ansh_chokshi, Mireye is Infrastructure for Physical World AI Agents. Know More At: mireye.com
2) Luca IQ: Founded by Angelo Policicchio and Akash Sadashivapeth, Luca IQ is an API for deterministic tax calculation and an IRS-authorized e-filing engine - the foundation for accounting firms and fintechs building on tax. Know More At: lucaiq.com
3) Zaplar @ZaplarInc: Founded by Axel Andersson Lingbert, Oscar Karlstromer, Jon Milles @jnmlsxyz, and Douglas Solberg @douglassolberg1, Zaplar is the AI-native operating system for hotels. Know More At: zaplar.com
4) machine0 @machine__0: Founded by Barnaby Malet @barnabymalet, machine0 is cloud computers for AI agents. Know More At: machine0.io
5) Tsenta @TsentaAi: Founded by Agnay Srivastava @AgnaySrivastava and Pulkit Gupta @pulkit_gupta2, Tsenta matches you with jobs, optimizes your profile & applies on your behalf. Know More At: tsenta.com
6) Blaze @blaze_payments: Founded by Faiyam Rahman @FaiyamRahman and Luc Succès @lucsucces, Blaze is a global Venmo for cross-border payments. Know More At: blaze.money
7) OpenVector @OpenVectorLabs: Founded by Andrey Gizdov and Vishal Urlam @vishalurlam, OpenVector is AI that turns any camera into an autonomous worker with real-time vision. Know More At: openvector.com
8) Palette @trypalette_ai: Founded by Josephine Lee and Serena Pei @spei04, Palette is an AI-native media platform. Know More At: palettelabs.com
9) Tracer @TracerML: Founded by Adam Rida, Tracer is an AI research lab building more capable and efficient AI through model coordination. Know More At: tracerml.ai
Post: menlotimes.com/post/y-combin…
Source: ycombinator.com/launches
𝐑𝐞𝐦𝐨𝐭𝐞 𝐇𝐢𝐫𝐞 𝐖𝐢𝐭𝐡 𝐔𝐬: 𝐌𝐞𝐧𝐥𝐨 𝐓𝐚𝐥𝐞𝐧𝐭 helps technology companies hire exceptional remote talent from India. Build your team with carefully curated engineers, product leaders, designers, GTM professionals, and more. Learn More At: menlotimes.com/menlo-talent
Serena Pei retweeted
Today we are launching @mireyehq with @ycombinator
The easiest way to build agentic applications for the physical world.
AI agents are starting to act in the real world, but they can't reliably understand it.
Mireye is one API and MCP that connects agents to the physical world: data, enrichment, tools, and signals that power them to make decisions.
One line of code to make your agents street smart.
mireye.com
Serena Pei retweeted
A $100M GPU deal doesn't close on an exchange. It closes in a group chat, off a voice note.
Today we're launching Stoa: an RFQ marketplace for GPUs. $300M+ in RFQs in our first month.
Post what you need. Vetted dealers bid blind. Firm quotes within 48 hours. We handle KYB, contracts, shipping, and settlement.
Every RFQ, firm quote, award, and settlement runs through Stoa, so we see what hardware trades for. That history becomes prices buyers, sellers, and lenders can mark, finance, and hedge against.
@stoaexchange
Serena Pei retweeted
Today, we are officially launching @WonderingApp backed by @ycombinator
It’s Duolingo for anything — break down any complex topics, from LLMs to Analytic Philosophy into structured path of short lessons.
But it's 10x better than the Duolingo format. Every lesson comes with interactive diagrams, podcasts, and real-world applications, with a thoughtful tutor always ready to help you dive deeper.
And it’s all personalized to what you already know and how difficult you want it to be!
Wondering is the most delightful way to understand complex topics and turn information into knowledge you can remember and apply.
Give Wondering a try here: wondering.app
Serena Pei retweeted
We just revolutionized a trillion dollar industry.
Introducing GutGutGoose: The pill that engineers your microbiome.
The only company in the world that creates a personalised probiotic for you, retests to prove we aren't placebo, and if you're not satisfied, you get every single dollar back.
@Gutgutgoose
which model did it best?
↖️ left: Veo 3.1, Google
↗️ top right: Seedance 2.0, ByteDance
↘️ bottom right: Kling 3.0 Pro, Kuaishou
prompt: "A dimly lit kitchen late at night. A woman sits across the table from her estranged brother; her voice trembles as she says, 'You left when we needed you the most.' Her face moves through hurt, flashing anger, then a bittersweet half-smile as tears fall. Audio: trembling emotional dialogue, a quiet sob, a heavy tense silence, the low hum of a refrigerator, and soft rain tapping the window."
🤖 Made with AI
excited to be building @trypalette_ai with @leejosiey this summer @ycombinator!!
looking forward to talking to people, learning, and building something meaningful
side quest: explore every coffee shop nearby ☕️ if you're building or in the HR space, my dms are open :)
