Compare Launch app →
NotebookLM vs Pi
Compare NotebookLM vs Pi: pricing, context window, benchmarks (coding, math, reasoning), capabilities. Updated April 2026.
Open in compare tool — pick different models →NotebookLM
notebooklm.google.com ↗ Pi
pi.ai ↗ Pricing
Free tier
Free, generous; Plus included with Google AI Pro
Fully free, no paid tier
Standard plan
Google AI Pro — $20/mo
Free — API only
Top plan
Google AI Ultra — $250/mo
API only — API only
API input / 1M tokens
—
$2.50 Best
API output / 1M tokens
—
$10.00 Best
Capability
Context window
1M Best
32K
Max output tokens
8K Best
4K
Knowledge cutoff
Live (web)
2025-08
Benchmarks
Coding (LiveCodeBench)
—
—
Math (AIME 2025)
—
55% Best
Reasoning (GPQA Diamond)
—
62% Best
Human pref. (LMArena Elo)
—
1280 Best
Features
Image input
Partial
—
Voice mode
Partial
✓
Web search
✓
Partial
File upload
✓
—
Image generation
—
—
Code execution
—
—
Agent / tool use
—
—
Persistent memory
✓
✓
NotebookLM
Document research specialist — not a general chat assistant. Generates podcast-style "Audio Overview" from your sources. Best for grounded study and literature review.
Pi
Conversational and EQ-focused. Best voice mode in 2024–2025 (six warm voices). Limited capability vs frontier models. Now part of Microsoft after Inflection acqui-hire.
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