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Top stories today:
- Meta to enter prediction markets with “Arena” to rival Kalshi, Polymarket
- Anthropic launches Claude Tag, AI coworker for Slack
- Cerebras -14% as margin outlook overshadows 94% revenue growth
- SpaceX raises $25B in debut bond sale as demand cools
- Menlo Ventures raises record $3B to fund AI startups
- Hadrian to raise $1B at $7.5B valuation for AI-powered factories
0. Data and calendar
All values as of 6 AM ET / 3 AM PT, other than S&P500 and NASDAQ close (4 PM ET / 1 PM PT).
All times are ET.
Listen to our AI-generated podcast summarizing today’s newsletter (beware of hallucinations):
1. Meta said to enter prediction markets with “Arena” to rival Kalshi, Polymarket
Users wouldn’t wager money on the app, unlike most prediction markets.
A video-game-like points system would likely be used.
Meta hasn’t ruled out real-money betting in the future.
Arena remains in development and may never launch.
Sen. Richard Blumenthal has criticized the effort.
Separately, Meta unveiled its $299 Adventurer and Fury smart glasses
Available in 26 styles across various colors, lenses, and frames.
Meta AI powered by Muse Spark is built into the glasses.
A $399 Starfire model in collaboration with Kylie Jenner also debuted.
Fill key roles faster, without waiting weeks or months for the pipeline to behave.
AI-assisted matching and structured vetting help you find people who fit the role and the team.
Cut time and cost with a process built for scale, not endless back-and-forth.
*Sponsored.
3. Anthropic launches Claude Tag, AI coworker for Slack
It can learn context and provide suggestions.
Each Slack channel gets its own isolated Claude identity.
Available in beta for Claude Team and Enterprise tiers.
If you're already using Claude or ChatGPT for complex work, you know the drill: you feed it research docs, spreadsheets, project briefs... and then manually copy-paste meeting notes to give it the full picture.
What if your AI could just access your meeting context automatically?
Granola's new Model Context Protocol (MCP) integration connects your meeting notes to your AI app of choice.
Ask Claude to review last week's client meetings and update your CRM. Have ChatGPT extract tasks from multiple conversations and organize them in Linear. Turn meeting insights into automated workflows without missing a beat.
Perfect for engineers, PMs, and operators who want their AI to actually understand their work.
Try the MCP integration for free here or use the code BAYAREATIMES
*Sponsored.
5. Cerebras -14% as margin outlook overshadows 94% YoY Q1 revenue growth
The stock continued to slide in pre-market on Wed. and is -27% since its May IPO:
