tokevenClaudevsGrok
Claude Sonnet 5 vs Grok 4.5
Side-by-side comparison of pricing, task quality, and projected cost at higher scale.
Pricing
Side-by-side pricing
Claude Sonnet 5
Mid-tierGrok 4.5
FlagshipInput $/MTok
$2.00
$2.00
Output $/MTok
$10.00
$6.00
Cache discount
90% off
85% off
Context
200K
500K
Quality
Task confidence comparison
Confidence score from zero to one hundred by task type, where higher is better.
Code Generation
93
vs
0
Code Review
96
vs
0
Summarization
91
vs
0
Q&A
89
vs
0
Extraction
88
vs
0
Reasoning
90
vs
0
Classification
86
vs
0
Creative Writing
87
vs
0
Claude Sonnet 5
Grok 4.5
Guidance
When to use Claude Sonnet 5 vs Grok 4.5
Choose Claude Sonnet 5 when...
- Similar performance; consider provider preference or ecosystem fit.
Choose Grok 4.5 when...
- -You need a larger context window (500K vs 200K)
- Similar performance; consider provider preference or ecosystem fit.
At scale
Cost at scale
Estimated cost assuming a seventy percent input and thirty percent output token split.
Claude Sonnet 5
Grok 4.5
100K tokens
$0.44
$0.32Cheaper
1M tokens
$4.40Cheaper
$6.40
10M tokens
$44.00Cheaper
$64.00
FAQ
When should I use Claude Sonnet 5 instead of Grok 4.5?
Claude Sonnet 5 and Grok 4.5 perform similarly across all tracked tasks. Pick based on pricing and provider preference.
Is Grok 4.5 cheaper than Claude Sonnet 5?
Both models have the same input pricing at $2.00/MTok. Compare output pricing: $10.00 vs $6.00/MTok.
What are the context window sizes for Claude Sonnet 5 and Grok 4.5?
Claude Sonnet 5 has a 200K token context window. Grok 4.5 has a 500K token context window.
Go deeper on either model
Per-call cost calculators, provider lineups, and price history for both models on this page.
Other comparisons
How Claude Sonnet 5 and Grok 4.5 stack up against the rest of the field.
Track your real costs
Comparisons show estimated costs at list price. The dashboard reveals your real spend and savings.