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Tuesday, June 02, 2026
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Today’s top story
INDUSTRY
Anthropic confidentially files for IPO at $965B valuation
Fortune
Anthropic submitted a confidential S-1 to the SEC on June 1, paving the way for a public listing potentially as soon as this fall. The filing follows a recent $65 billion raise at a $965 billion valuation, which eclipsed OpenAI's $852 billion mark, and comes alongside a reported revenue run rate of roughly $47 billion in May.
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Why it matters
An Anthropic listing would be the largest pure-play AI IPO ever and reset public-market benchmarks for frontier-model companies. It also intensifies the structural race with OpenAI, which remains a capped-profit entity tied to Microsoft.
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More headlines
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RELEASE
Google ships Gemini 3.5 Flash as default across Gemini app and Search
Google made Gemini 3.5 Flash generally available, claiming it outperforms Gemini 3.1 Pro on coding and agentic benchmarks while running at Flash-tier speeds. The model is now the default in the Gemini app and AI Mode in Search, with Gemini 3.5 Pro slated for later this month.
Google Blog
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RELEASE
Microsoft to unveil homegrown MAI coding model at Build 2026
Microsoft is opening Build 2026 with a new MAI coding model positioned as a cheaper alternative to GPT-5.5 and Claude Opus inside Copilot. The launch coincides with token-based billing for GitHub Copilot, signaling tighter cost control on third-party model usage.
Reuters
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INDUSTRY
OpenAI brings frontier models and Codex to AWS Bedrock
OpenAI's frontier models and Codex are now generally available through Amazon Bedrock, giving enterprises AWS-native procurement, billing, and compliance for OpenAI APIs. The move extends OpenAI's reach beyond Azure and broadens its enterprise distribution.
OpenAI
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FUNDING
Reflection AI in talks to raise $2.5B at $25B valuation
Nvidia-backed Reflection, founded by former DeepMind researchers Misha Laskin and Ioannis Antonoglou, is pursuing a $2.5 billion round at a $25 billion valuation. The round would back a US-led open-source push aimed at competing with DeepSeek, Meta, and Mistral.
Tech Startups
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RELEASE
OpenAI launches GPT-Rosalind for biodefense applications
OpenAI introduced GPT-Rosalind, a specialized model for organizations working across the biological threat lifecycle, from prevention through medical countermeasures. The release marks a notable push by OpenAI into highly regulated, mission-critical scientific domains.
OpenAI
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This week in benchmarks
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vs. Tuesday, May 26, 2026
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Intelligence
GPT-5.5 (xhigh) fell from #1 to #2
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Intelligence
GPT-5.5 (high) fell from #2 to #3
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Intelligence
Claude Opus 4.7 (Adaptive Reasoning, Max Effort) fell from #3 to #4
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Intelligence
Gemini 3.1 Pro Preview fell from #4 to #5
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Intelligence
GPT-5.4 (xhigh) fell from #5 to #6
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Intelligence
GPT-5.5 (medium) fell from #6 to #7
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Read past briefs and the live benchmarks at
ai-newsletter-eta-lemon.vercel.app.
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