Microsoft
✓ OfficialCreator of the Phi small language model family and Azure AI partner.
At a glance
Microsoft's AI strategy
Microsoft's AI strategy combines its OpenAI partnership (49% economic interest, capped) with significant in-house model development under the Microsoft AI division, led by Mustafa Suleyman after his arrival from Inflection AI in 2024.
Copilot
Microsoft has rebranded virtually every consumer and enterprise product around the Copilot AI assistant:
- GitHub Copilot (2021) — code completion built on OpenAI Codex/GPT
- Microsoft 365 Copilot (2023) — AI assistant in Word, Excel, Teams, Outlook
- Copilot (consumer) — successor to Cortana, powered by OpenAI models
- Copilot Pro — subscription tier with priority access to GPT-5
Phi family
Microsoft Research has open-sourced the Phi series of small language models:
- Phi-1 (2023) — 1.3B parameters, code-specialised
- Phi-2 (2023) — 2.7B
- Phi-3 (2024) — 3.8B–14B; "small but mighty" — competitive with much larger models
- Phi-4 (2024) — 14B reasoning specialist
Azure OpenAI Service
Microsoft is the exclusive cloud provider for OpenAI workloads. Azure OpenAI Service offers enterprise SLAs, private networking, and regional deployments of GPT models alongside Microsoft's own.
Capex
Microsoft committed US$80 billion in AI capital expenditure for fiscal 2025, the largest single-company AI infrastructure budget on record.
Latest news from Microsoft
8 most recent · auto-synced from RSS- ·Allison Linn
A conversation with Kevin Scott: What’s next in AI
The post A conversation with Kevin Scott: What’s next in AI appeared first on The AI Blog .
- ·John Roach
From Hot Wheels to handling content: How brands are using Microsoft AI to be more productive and imaginative
The post From Hot Wheels to handling content: How brands are using Microsoft AI to be more productive and imaginative appeared first on The AI Blog .
- ·nbayraktepe
Microsoft open sources its ‘farm of the future’ toolkit
Latest activity
Full history →- 0
WizardLM-2 8x22B released
WizardLM-2 8x22B discovered via OpenRouter. Provider: Microsoft.
WizardLM-2 8x22B
Releases timeline
Showing 5 most recent- Phi-4 Reasoning Vision
15B multimodal reasoning model with image understanding.
- Phi-4 Reasoning
14B reasoning-specialized Phi model with extended thinking.
- Phi-4
14B small language model from Microsoft Research with state-of-the-art STEM reasoning.
- Phi-3.5 Mini
3.8B instruction-following model targeting mobile and edge deployment.
- WizardLM-2 8x22B
WizardLM-2 8x22B is Microsoft AI's most advanced Wizard model. It demonstrates highly competitive performance compared to leading proprietary models, and it consistently outperforms all existing state-of-the-art opensource models. It is...
Active models
- Phi-4 Reasoning VisionActive
15B multimodal reasoning model with image understanding.
32K ctx - Phi-4 ReasoningActive
14B reasoning-specialized Phi model with extended thinking.
32K ctx - Phi-4Active
14B small language model from Microsoft Research with state-of-the-art STEM reasoning.
16K ctx - Phi-3.5 MiniActive
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