Microsoft Copilot vs Pi: Pricing and Ratings Compared (2026)
Entry prices and free plans as read on each vendor's pricing page, and user ratings as published on review sites, for Microsoft Copilot and Pi side by side. This page compares data; it is not a hands-on review.
On the data: On the data below the two are close or not directly comparable, so we do not name a winner for this pair.
Short on time? Here's the quick answer
Based on published vendor pricing and features and on public review data, here's who should pick what:
Microsoft Copilot
AI assistant powered by OpenAI across Microsoft products
Best for you if:
- • You want deep Microsoft integration
Pi
Personal AI assistant by Inflection
Best for you if:
- • You want a fully free tool (Microsoft Copilot requires payment)
| At a Glance | Microsoft Copilot | Pi |
|---|---|---|
Starts at | Free plan, paid from $20/mo, billed monthly Copilot Pro plan | Free 100% free |
Category | AI Assistants Productivity | AI Assistants Productivity |
Rating | 4.5/5 G2 4.5 227 reviews | 4.4/5 G2 4.4 158 reviews |
Free plan | Yes | Yes |
Watch out for | Requires Microsoft 365 Business subscription for $30 tier | n/a |
Choose Microsoft Copilot or Pi?
Choose Microsoft Copilot if
- You want deep Microsoft integration
- You want enterprise-grade security
Choose Pi if
- You want a fully free tool (Microsoft Copilot requires payment)
- You want conversational AI
- You want emotional intelligence
In-Depth Analysis
Microsoft Copilot
AI assistant powered by OpenAI across Microsoft products
The pricing is fair for the integration depth, but the $30/user/month for Copilot for Microsoft 365 is expensive compared to standalone AI assistants, especially since it requires an existing M365 subscription.
Watch out
Requires Microsoft 365 Business subscription for $30 tier
Strengths
- Pro: Deep Microsoft integration
- Pro: Enterprise-grade security
- Pro: Understands work context
- Pro: Multiple product integration
- Pro: Leading model quality
Weaknesses
- Con: Expensive for M365 Copilot
- Con: Requires Microsoft ecosystem
- Con: Learning curve
- Con: Variable response quality
Key features
Pi
Personal AI assistant by Inflection
Pi's pricing is exceptionally generous, offering a fully-featured AI assistant completely free of charge.
Strengths
- Pro: Conversational AI
- Pro: Emotional intelligence
- Pro: Good for chat
- Pro: Free to use
- Pro: Active development
Weaknesses
- Con: Limited features
- Con: No API access
- Con: Consumer focused
- Con: Privacy concerns
- Con: Better alternatives exist
Key features
Plans and prices: Microsoft Copilot vs Pi
| Tool | Plans and prices | Source |
|---|---|---|
| Microsoft Copilot |
| copilot.microsoft.comread Oct 1, 2026 |
| Pi |
| pi.airead Sep 30, 2026 |
Prices as read on each vendor's own pricing page on the date shown. Plans are listed per tool and are not matched against the other tool's plans: a plan name or price in one column says nothing about the same row in the other. Details on Microsoft Copilot pricing and Pi pricing.
Key Takeaways
Microsoft Copilot
- Choose if you want AI assistant powered by OpenAI across Microsoft products
Pi
- Choose if you want personal AI assistant by Inflection
What the data shows
On the data below the two are close or not directly comparable, so we do not name a winner for this pair.
- User ratings are within 0.2 points (4.5/5 from 227 reviews for Microsoft Copilot, 4.4/5 from 158 reviews for Pi).
- Microsoft Copilot starts at $20/mo, billed monthly; Pi has no public paid plan price on file.
- Both have a free plan.
Criteria: user rating (only above 20 reviews on both sides, gap of 0.2 or more), entry price (only on the same billing basis), free plan. How we rate
What Users Say
Pi Reviews
Friendly great ideas
The friendliness of the speaker. The ideas. The speed of answers. P
Frequently Asked Questions
How do Microsoft Copilot and Pi compare in 2026?
On the data below the two are close or not directly comparable, so we do not name a winner for this pair. User ratings are within 0.2 points (4.5/5 from 227 reviews for Microsoft Copilot, 4.4/5 from 158 reviews for Pi). Microsoft Copilot starts at $20/mo, billed monthly; Pi has no public paid plan price on file. Both have a free plan.
What are Microsoft Copilot and Pi used for?
Microsoft Copilot: AI assistant powered by OpenAI across Microsoft products. Pi: Personal AI assistant by Inflection.
What does Microsoft Copilot cost vs Pi?
Microsoft Copilot's cheapest paid plan is Copilot Pro at $20/mo, billed monthly; it also has a free plan. Pi is free. Prices read on the vendors' pricing pages, latest check Oct 1, 2026.
What's the main difference between Microsoft Copilot and Pi?
Microsoft Copilot's main strength: deep Microsoft integration. Pi's main strength: conversational AI.