1Access ChatGPT's o1 Model

Microsoft Copilot with Think Deeper turned on

Microsoft announced that it now offers free, unlimited access to OpenAI's powerful o1 model through Copilot's Think Deeper feature. This is the same advanced AI model that ChatGPT users have to pay $20 monthly to access.

To use Microsoft Copilot's Think Deeper, go to copilot.microsoft.com or open Copilot on your PC and click the sparkle icon next to the microphone button on the search bar. You'll notice that responding to prompts takes a few seconds longer than usual, but the wait is worth it for the improved reasoning capabilities.

You must sign in to your Microsoft account to access Think Deeper. Without signing in, you'll only have access to Copilot's standard features.

I tested Think Deeper with a complex prompt; it took some time and thought before responding. For example, when I asked it to "Create a detailed 30-day training plan for a half-marathon that adapts to a busy work schedule," it produced a thoughtful program with contingency options for missed workouts rather than a generic template.

What makes this particularly valuable is o1's superior reasoning ability. Unlike basic AI models that sometimes hallucinate or provide superficial responses, Think Deeper delivers more subtle, accurate analysis. The model excels at tasks requiring critical thinking.

While you might experience slightly longer waits during peak times compared to Copilot Pro subscribers, free users have no usage caps.

2Access to Advanced Voice

Advanced voice interactions with AI used to be a premium feature in most AI chatbots. However, with Microsoft Copilot, you can use unlimited advanced voice chat, removing the previous usage restrictions that made the feature less practical.

I've been testing Copilot's voice chat against ChatGPT's advanced voice feature, and both are somewhat similar now. According to Microsoft, you can now speak naturally to Copilot in over 40 languages.

What really impressed me was Copilot's ability to pull in real-time information during voice chats. Try asking, "What happened in the news today?" and you'll get current events rather than outdated information—something ChatGPT's voice chat can't match without a subscription.

Copilot has also improved the voice transcription feature. To try it out, tap the microphone icon in the Copilot app or on the Copilot website. For the best experience, speak clearly and try complex prompts like "Help me plan a weekend trip to Chicago with a focus on architecture tours and local cuisine."

3Get Real-Time Information Without Any Restrictions

While you can now use ChatGPT search for free, it has limited real-time web access. Microsoft Copilot provides unrestricted access to current information. This means you can ask about recent events or product releases and get up-to-date answers.

When I tested this with prompts like "What are today's top news headlines?", Copilot consistently provided accurate, current information. Unlike ChatGPT's free version, which sometimes presented two-day-old news as "latest," Copilot's responses were genuinely current by default.

Microsoft Copilot response on top headlines of the day with sources

This real-time access extends to Copilot's voice feature, too. When asked about the current weather, it pulls fresh data.

Never make financial, medical, or other important decisions based solely on information provided by any AI chatbot, especially for sensitive data like stock prices or medical advice.

The feature isn't perfect, though. I noticed that while Copilot consistently provides current information, its referencing can be hit-or-miss. Sometimes, it links to a publication's homepage rather than the specific article it's referencing—an issue I've seen with ChatGPT Search as well.

For the most current results, explicitly mention timeframes in your prompts, such as "this week," "today," or "most recent."

4Copilot Has a Larger Context Window

Microsoft Copilot offers you free access to GPT-4o with its full context window capabilities, giving you a distinct advantage over ChatGPT's free tier. While both provide GPT-4o access, ChatGPT places usage limitations and switches back to other free models.

Related
GPT-4o Brings GPT-4 to Everyone, and This Is How It Works

OpenAI's new model steps it up once again.

The context window—an AI's working memory—determines how much information it can process in a single conversation. Think of it as the amount of text the AI can remember and reference when responding to you. Copilot's implementation allows for the processing of approximately 128,000 tokens (roughly 96,000 words) without hitting any free tier restrictions.

This expanded context makes a noticeable difference when working with lengthy documents. For example, I pasted a 40-page document into Copilot and asked it to analyze specific sections while referencing earlier parts.

Microsoft Copilot response on summary of 40 pages book

This expanded memory is handy for coding projects, research analysis, and document reviews. For now, you can upload one file per prompt, discuss it in detail, and maintain that context throughout your session.

Download: Microsoft Copilot

While a ChatGPT Plus subscription still offers advantages, Copilot has narrowed the gap between free and premium AI experiences. For most everyday tasks, the free version of Copilot now provides everything most of us need.

Whether you're a student, professional, or casual user looking for the best AI tools for any job, Copilot's free capabilities make it worth adding to your productivity toolkit—even if you're already using other AI assistants.