Top startup launches for the week of May 15-21, 2026

Introducing Composer 2.5, our most powerful model yet. It's more intelligent, better at sustained work on long-running tasks, and more reliable at following complex instructions. For the next week, we’re doubling the included usage of the model. https://t.co/N87ojcXlOC

We live in a golden age of biology. So why are people still dying from disease? Because discovery and development move slower than they should. Today, we’re partnering with Incyte to change that. Kosmos is now the first agent that can compress months of drug development into https://t.co/j0WGDtBNdO

Between rooms. On rounds. Walking the corridor outside an OR. Charting one-handed during a phone call. This is where clinical questions happen. Today we're launching Voice Mode. OpenEvidence is the first multimodal medical AI: physicians can type, speak, or listen, on the same https://t.co/OPx9sB8C4u

Introducing OpenAI Guaranteed Capacity: a new offering that enables customers to guarantee long-term access to OpenAI compute. We’ve made long-term investments in infrastructure, partnerships, and capacity planning to help customers scale reliably. Now, Guaranteed Capacity

Today, we’re announcing Viktor’s $75M Series A, led by @Accel . @viktor__com was supposed to be a small experiment. It became the AI coworker 10x'ing real businesses. $15M in annualized revenue run rate. In 10 weeks. – Small companies saving millions of dollars – Sourcing https://t.co/adbqqwRZju

Today, RADAR announced a $170 million Series B, bringing our valuation to more than $1 billion. We believe Physical AI can transform the 80% of global commerce that still happens in stores.  Retailers lose an estimated $1 trillion each year because their stores lack real-time https://t.co/g1DXUa3JcY

Nobody believes in you, so make them. Announcing our $7M seed round led by @Slow. https://t.co/0rXH4iRfN8

Introducing Voyager Gateway 1. Warfighters at the edge need access to mission compute capabilities that are typically constrained to the base. The size, weight and power burden make server racks unrealistic options. Voyager G1 is the rugged, waterproof device that unlocks https://t.co/2bB5svR5jY

We raised $30M for this moment. Today, we launch Conversion Agents. The first marketing platform where AI agents do the work and your team does strategy. We call it vibe marketing. Marketing teams spend 50%+ of their time on monotonous work. Conversion Agents cut that to 5%. https://t.co/ASsQ2M1b3p

Until now, physicians using AI in clinic had to assemble the patient’s context themselves. Allergies, comorbidities, medications, prior procedures, copy-pasted in from the chart. Today we’re announcing a partnership with @CedarsSinai. OpenEvidence now works directly inside Epic, https://t.co/H4SzzydVrX

Highlights from today’s Codex Thursday launches: 1️⃣ Codex can now securely use apps on your Mac from your phone, even when your Mac is locked and the screen is off. https://t.co/JUOss3M2Va https://t.co/CAEUe1aswm

We just crossed $10M in ARR at @Chatbase! 🎉 🎉 And today, we're launching Chatbase as the full harness for customer-facing AI agents. Similar to how Claude code is a harness for coding agents, Chatbase is the harness for customer experience agents. That means we give the https://t.co/7B7uFGt6Vh

Introducing Gemini 3.5: our newest family of models combining frontier intelligence with real-world action. The first release is 3.5 Flash, our strongest model yet for agents and coding 🧵 https://t.co/A3RXdyjIz2

Introducing: Cohere Command A+ We’ve created our most powerful LLM yet, optimized it to run on as little hardware as possible, and released it open-source for all. https://t.co/C1KYnvA8JB

📣 @GoogleAI’s Gemini 3.5 Flash is now generally available and rolling out in GitHub Copilot. Early testing shows ➡️ It has strong tool use, fast response times, and high cache efficiency ➡️ It is it well-suited for fast, iterative agentic coding workflows Try it out in @code.

I'm excited to announce that @AmcaInc has raised a $300M Series B at a >$1B valuation, led by @CaffeinatedCap with major support from @LightspeedVP, @a16z, @Lux_Capital, and others. We're on a mission to reconstitute a supply chain that has too often put profit over country. https://t.co/Iwa7zFgs3A

UK sovereign AI is becoming reality. Together with Argyll , we’ve launched a sovereign AI inference cloud built on SambaNova’s full-stack AI platform — designed for performance, efficiency, and control without the trade-offs of traditional infrastructure. As AI adoption scales, https://t.co/x9oyDCTQYE

Cursor is now available in Jira. Assign Cursor to work items, or mention @​Cursor in a comment to kick off a cloud agent. Cursor uses the title, description, comments, and your team's repository settings to create a merge-ready PR. https://t.co/cK2ElMu0eZ

Status has raised $17M in seed and Series A funding led by @AbstractVC, @generalcatalyst and @usv to let anyone step inside their favorite stories, become famous, and live a million different lives. We quietly launched Status last year and grew to over 1 million users in 19 days https://t.co/uwP9wqsXWv

People are generating over 1.5 billion images a week in ChatGPT. Researcher @kenjihata joins Product lead @adele__li and host @AndrewMayne to explore the new use cases and trends emerging since the launch of Images 2.0. https://t.co/INhLS7TDri

You can now create and manage automations in the same workspace as your agents. Automations are now available in the Agents Window. For the next 7 days, all agent runs for newly created automations are 50% off. https://t.co/bUz588Rjhy

Introducing Gemma-4-31B-it-Pearl on Together AI, Pearl Research Labs’ instruction-tuned checkpoint of Gemma 4 31B powered by @prlnet Proof of Useful Work protocol. AI natives can now use this Pearl model as a serverless inference endpoint on Together AI, at a 25%+ discounted https://t.co/ljoQ8Nfa1U

We just raised $10.5M led by @a16z. Patents protect the world's most important innovations, but the analysis to actually use them has always been too slow and too expensive. @StiltaIP changes that, and is already used on the highest-stakes IP work at multiple AmLaw 100 firms https://t.co/Y0N14M8ZEY

Introducing Speech Engine. Developers can now turn their existing chat agent into a full voice agent with one prompt. Speech Engine combines our leading speech, transcription, and voice orchestration models into a single pipeline - all custom built to work best together. https://t.co/WSWM7nppwd

Excited to share that we’ve raised $300M in our Series B round, led by @radicalvcfund, bringing our total funding to more than $450M, with leading technology companies joining as both customers and investors. We continue accelerating the path to AGI through our two core pillars: https://t.co/EtW8VYl5Fy

introducing Imagine Animate - your moments, now in motion🎬 turn your fav images into short clips with a single tap☝️✨ 🧵(1/2) https://t.co/z4cAAXRMMM

Today, I’m excited to share that we’ve raised a $4.5 Million seed round led by @2048vc and @RangeVC with participation from @btv_vc. https://t.co/ajOhQwIaBf

Small update today. Many requested a "anti-prompting" feature for V8 models (which existed in previous versions) which we call the --no flag. This is now available today in V8.1! So if you're trying to get something out of your images (like people) try --no people. Have fun!

No more guessing what your agents are up to. Introducing Custom Agent Insights. Every run, fully visible. Rolling out now. https://t.co/H2wvwkkG2M

3️⃣ Goal mode is now available in the Codex app, IDE extension, and CLI. Goal mode makes Codex more hands-off, letting you set a goal that it can work towards for hours or even days. https://t.co/OZ18P1YxBf