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Microsoft Copilot vs NotebookLM
Compare Microsoft Copilot vs NotebookLM: pricing, context window, benchmarks (coding, math, reasoning), capabilities. Updated April 2026.
Open in compare tool — pick different models →Microsoft Copilot
copilot.microsoft.com ↗ NotebookLM
notebooklm.google.com ↗ Pricing
Free tier
Free GPT-5 access via Bing — most generous of frontier-tier
Free, generous; Plus included with Google AI Pro
Standard plan
Copilot Pro — $20/mo
Google AI Pro — $20/mo
Top plan
Microsoft 365 Copilot — $30/mo
Google AI Ultra — $250/mo
API input / 1M tokens
$5.00 Best
—
API output / 1M tokens
$15.00 Best
—
Capability
Context window
128K
1M Best
Max output tokens
8K
8K Best
Knowledge cutoff
2026-01
Live (web)
Benchmarks
Coding (LiveCodeBench)
68% Best
—
Math (AIME 2025)
82% Best
—
Reasoning (GPQA Diamond)
76% Best
—
Human pref. (LMArena Elo)
1382 Best
—
Features
Image input
✓
Partial
Voice mode
✓
Partial
Web search
✓
✓
File upload
✓
✓
Image generation
✓
—
Code execution
✓
—
Agent / tool use
✓
—
Persistent memory
Partial
✓
Microsoft Copilot
Tightest M365 integration (Word, Excel, Teams, Outlook). Free GPT-5 in Bing Chat. Slightly weaker on benchmarks than ChatGPT due to safety tuning.
NotebookLM
Document research specialist — not a general chat assistant. Generates podcast-style "Audio Overview" from your sources. Best for grounded study and literature review.
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