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The Rundown: Daily AI & Compute
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The largest open model yet says it's Claude: Moonshot's Kimi K3 ships at 2.8 trillion parameters and half of Opus 4.8's cost per task, self-reported to beat it, and Anthropic already published the distillation receipts

4 min•17 juli 2026

Moonshot AI released Kimi K3, the largest open-weight model yet: a 2.8-trillion-parameter mixture-of-experts (16 of 896 experts active), 1M-token context, native vision, Kimi Delta Attention and Attention Residuals, in K3 Max and K3 Swarm variants. Moonshot's own benchmarks show K3 beating Anthropic's Opus 4.8, while independent Artificial Analysis scores it clearing Opus 4.8 and GPT-5.5 but losing to Fable 5 and GPT-5.6 Sol; it lists at $3/$15 per million tokens, roughly half Opus's cost per task. Ask it who it is and it says "I am Claude", the tell of the distillation Anthropic documented in February (3.4M exchanges from Moonshot, 16M across three Chinese labs via 24,000 fake accounts). Also: Mira Murati's Thinking Machines ships its first model, the 975B open-weight Inkling; an autonomous AI agent breaches Hugging Face and is caught with the open-weight GLM 5.2; and NotebookLM becomes Gemini Notebook with a sandboxed cloud computer in every notebook.

The Call: The launch-day framing that Kimi K3 beats Opus 4.8 does not survive independent testing. By September 15, no two neutral evaluators (the public leaderboards and third-party benchmark runs, not Moonshot's own table) will place K3 above Opus 4.8 on a majority of agentic-coding suites. It lands inside Opus's band, not above it. Settles by September 15, 2026.

00:00:00 · The Brief
00:00:13 · The Big Story
00:01:47 · The Open Frontier
00:02:20 · The Agent
00:03:04 · The Tape
00:03:34 · The Call

Cut from 9 stories across 300+ curated sources. Read the edition with full transcript at nextbig.dev/daily/2026-07-16

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