Batchwatch · YC Fall 2026 · Oct 11–18 · No. 1
Melty Chat drew 526.5k views on launch, herdr led the batch with 237 mentions while its founder posted four times, and Boat's founder claimed 7.5x growth in two months.
The Momentum Index
The top 10 of 146 companies by traction on X this week.
| 1 | herdr · building the open agent runtime |
| 2 | Boat · The best cloud VMs for billions of agents |
| 3 | Melty · Mashup any game Melty Chat, which turns a prompt into a game mashup even while playing, drew 526.5k of Melty's 633.8k views. post |
| 4 | Grep AI · Self-improving agents that automate tedious operational work |
| 5 | OpenSEO · Open source alternative to Semrush and Ahrefs |
| 6 | Frontrunner · Cursor for GTM |
| 7 | Dreamscale Labs · Real-time cloud inference for robotics |
| 8 | Deploy · The generalist robot deployment company |
| 9 | Terse · Durable state for AI agents |
| 10 | Runtime.si · Evaluation Infrastructure for Robotics (YC F26) |
Receipts
Traction claims posted this week, as the founders posted them. Each one links to its post; Batchwatch checks that the post says it, not that it is true.
- RATLOG: @_charlieweise says RATLOG has signed $400M in launch reservations and hot-fired its first engine 4 months in, from a basement, for under $30K. The largest dollar claim in the batch this week, stated without detail. post
- Boat: @AniC_dev says Boat serves more than 12k vCPUs and 24TB of RAM, grew 7.5x in 2 months, and doubled daily VM spawns in 7 days. He also says customers save over $7.5M this year, his own estimate. post 1 · post 2
- Native: @BenjaminBekken says Native passed $1.3M in gross volume sales six months after launch, with Norn live for 2,200+ businesses. post 1 · post 2
- CONUS: @VincentPaffrath says CONUS is used in 20+ hospitals. post
- Clean: @TejasGupta67820 says he messaged over 2,000 people during TechCrunch, booked 40 sales calls, and closed 4 clients. post
- Veeza AI: @alymoursy says Veeza grew users 7x in about a month since going live on the YC directory. He set a goal of 100k by Demo Day; no base number was given. post 1 · post 2
- Maritime: @mariagorskikh posted an MRR graph with no figures. She also says 500 MIT AI Conference attendees got Maritime-run agents that set up over 300 meetings. post 1 · post 2
Launches
- Melty: Melty Chat: prompt a game mashup, even mid-play. 526.5k views. post
- Caveman: Caveman 4.0 and Caveman Cloud. The founder cites 111k GitHub stars. 232.4k views. post
- Saccade: Early Alzheimer's biomarker test, with clinic bookings via a waitlist for ages 30+. post
- Sentient OS: On-device AI that reads files and email overnight, then acts with its own cursor. post
- GodHands: Learns how teams work by watching real work across apps, then builds playbooks and agents. post
- Invertix: Prometheus, a physics-grounded agentic system for autonomous monitoring of energy plants. post
- Dreamscale Labs: Dreamscale Inference research preview: run robot models from the cloud with one CLI command. post
- Deploy: Generalist robot deployment with no upfront cost. Customers pay for work done. post
- Native: Norn, a model that predicts which marketing ideas will stand out. API waitlist open. post
- Neomatter: OS for in-house legal teams. Picks up requests from email, Slack and Salesforce. post
- Praxis: Agents run law firm admin from inquiry to invoice. A lawyer approves every step. post
- Gradon: Pitched as 'Legora for AEC': AI for engineering firms designing buildings and infrastructure. post
Breakouts to watch
Companies outside the top five whose mentions grew fastest.
- Clean: Mentions rose from 0 to 5.7 per day over the last 3 days, after two launch videos: Clean (buying signals) and Ghostproof (multi-channel follow-up, including handwritten letters). Most mentions are replies asking how signals fire; one says the video resembles another launch. post 1 · post 2
- GrayPass: Mentions rose from 0.4 to 1.7 per day, but much of the rise is accounts flagging what they call a scam account impersonating @graypassinc. This is not product traction. The founders' own pitch posts drew modest engagement. post 1 · post 2
The batch mood
Agent compute is the most crowded lane. Boat prices itself against E2B and Daytona, Maritime sells a $1/month persistent Android phone after Amazon blocked AI shoppers, and Terse pitches Durable Actors against Cloudflare. post 1 · post 2
A robotics infrastructure stack is forming inside the batch: Dreamscale Labs for cloud inference, Runtime.si for evaluation, and Deploy for deployment. Dreamscale also announced a joint evaluation partnership with HUD. post 1 · post 2
Personal agents like Muse and Instinct are treated as a new channel. Maritime and Keiki offer $20k in credits to the first teams reaching 1,000 users, Stacktrace launched a gateway to let these agents in, and Veeza runs visa applications in WhatsApp. post 1 · post 2
Demo Day countdown
44 days to YC Fall 2026 Demo Day, Wednesday, December 2.
Meet first: Boat. The most specific usage claims in the batch, from the founder: 12k vCPUs and 7.5x growth in two months. Third parties such as @g48in also report using it. Ask for revenue and retention. post 1 · post 2