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Character.AI vs Grok
Compare Character.AI vs Grok: pricing, context window, benchmarks (coding, math, reasoning), capabilities. Updated April 2026.
Open in compare tool — pick different models →Character.AI
character.ai ↗ Grok
grok.com ↗ Pricing
Free tier
Most features free; unlimited messages
Free with X account, throttled
Standard plan
c.ai+ — $9.99/mo
SuperGrok — $30/mo
Top plan
c.ai+ — $9.99/mo
Heavy — $300/mo
API input / 1M tokens
—
$5.00 Best
API output / 1M tokens
—
$15.00 Best
Capability
Context window
8K
256K Best
Max output tokens
2K
16K Best
Knowledge cutoff
2024-06
2026-02
Benchmarks
Coding (LiveCodeBench)
—
68% Best
Math (AIME 2025)
—
75% Best
Reasoning (GPQA Diamond)
—
76% Best
Human pref. (LMArena Elo)
—
1378 Best
Features
Image input
Partial
✓
Voice mode
✓
Partial
Web search
—
✓
File upload
—
✓
Image generation
—
✓
Code execution
—
Partial
Agent / tool use
—
Partial
Persistent memory
✓
Partial
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.
Grok
Real-time X data feed. Image gen via Aurora. Less guarded tone than other frontier models.
Or skip the choice
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