The day in AI
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Launches and products
28 Aug 2025MicrosoftMAI-1-preview Microsoft AI's first end-to-end in-house foundation model, a mixture-of-experts trained on about 15,000 H100 GPUs and tested publicly on LMArena.28 Aug 2025OpenAIgpt-realtime and Realtime API general availability The Realtime API goes generally available with gpt-realtime, a speech-to-speech model, plus remote MCP, image input and SIP phone calling.28 Aug 2025xAIgrok-code-fast-1 A cheap, fast reasoning model built for agentic coding. It hits 70.8% on SWE-bench Verified at $0.20/$1.50 per million tokens and about 190 tokens per second.28 Aug 2025MicrosoftMAI-Voice-1 In-house expressive speech model generates a minute of audio in under a second on a single GPU; powers Copilot Daily and Podcasts.