Compare Launch app →
Character.AI vs Pi
Compare Character.AI vs Pi: pricing, context window, benchmarks (coding, math, reasoning), capabilities. Updated April 2026.
Open in compare tool — pick different models →Character.AI
character.ai ↗ Pi
pi.ai ↗ Pricing
Free tier
Most features free; unlimited messages
Fully free, no paid tier
Standard plan
c.ai+ — $9.99/mo
Free — API only
Top plan
c.ai+ — $9.99/mo
API only — API only
API input / 1M tokens
—
$2.50 Best
API output / 1M tokens
—
$10.00 Best
Capability
Context window
8K
32K Best
Max output tokens
2K
4K Best
Knowledge cutoff
2024-06
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
✓
✓
Web search
—
Partial
File upload
—
—
Image generation
—
—
Code execution
—
—
Agent / tool use
—
—
Persistent memory
✓
✓
Character.AI
Roleplay and companion focus, not a general assistant. Massive Gen-Z user base. Voice calls with characters. Different intent than chat-AI competitors.
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.
Or skip the choice
Get all 2 of them — plus 30+ more — for $14.99/month.
Perspective AI bundles ChatGPT-class, Claude, Gemini, and Grok in one app. Switch mid-conversation. No per-vendor logins, no separate bills.