AI Roundup (Jul 28): Kimi K3 Open-Sourced, Claude Opus 5 Ships, Microsoft's Cybersecurity Bet
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AI Roundup — July 28, 2026 The AI race is no longer just about who has the biggest model. Three moves in the last 24 hours show where the real competition is heading: open weights, aggressive pricing, and vertical specialization. 1. Moonshot open-sources Kimi K3 Moonshot AI released Kimi K3 , the first open-source mixture-of-experts model at the 3-trillion-parameter scale. Highlights: 1M-token context window Native vision support Free for commercial use under a revenue cap (under $20M annual…
1Key Takeaways
- AI Roundup — July 28, 2026 The AI race is no longer just about who has the biggest model.
- Three moves in the last 24 hours show where the real competition is heading: open weights, aggressive pricing, and vertical specialization.
- Moonshot open-sources Kimi K3 Moonshot AI released Kimi K3 , the first open-source mixture-of-experts model at the 3-trillion-parameter scale.
- Highlights: 1M-token context window Native vision support Free for commercial use under a revenue cap (under $20M annual….
2AIWedia Score
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3Why it matters
Coding AI shifts how fast software ships and how much human review each change needs. DEV — ML reports that aI Roundup — July 28, 2026 The AI race is no longer just about who has the biggest model.
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