Build 2025 Day One: Major Announcements and Developer Impact

Microsoft Build 2025 kicks off with major AI announcements. Here’s what developers need to know from Day One.

Key Announcements

Azure AI Foundry Updates

• New agent capabilities with improved reasoning
• Enhanced model routing and orchestration
• Expanded model catalog with latest versions
• Simplified deployment and monitoring

Copilot Ecosystem Expansion

• Copilot extensions marketplace launch
• Deep integration with Microsoft 365
• Custom Copilot builder improvements
• Enterprise governance features

Windows AI Platform

• Windows Copilot Runtime APIs
• Enhanced NPU support across devices
• New on-device model capabilities
• Developer tools for AI PC features

Developer Impact

# New Azure AI Foundry capabilities
from azure.ai.foundry import AIFoundryClient
from azure.ai.foundry.agents import Agent, ReasoningEngine

# Enhanced reasoning with new capabilities
agent = Agent(
    model="gpt-5",  # New model availability
    reasoning_engine=ReasoningEngine(
        enable_reflection=True,
        max_reasoning_steps=10,
        verification_enabled=True
    ),
    tools=[...],
    memory_enabled=True
)

# Improved deployment
deployment = await client.deployments.create(
    agent=agent,
    scale_settings={
        "min_instances": 1,
        "max_instances": 10,
        "auto_scale": True
    },
    monitoring={
        "quality_tracking": True,
        "cost_tracking": True,
        "alerting": True
    }
)

What This Means for Developers

1. Simpler agent development - New SDK makes building agents more intuitive
2. Better model options - Expanded catalog with specialized models
3. Easier deployment - Streamlined path from prototype to production
4. Enhanced observability - Built-in monitoring and quality tracking

Stay tuned for more Build coverage throughout the week!