tokevenGPTvsGrok
GPT 5.5 vs Grok Build 0.1
Side-by-side comparison of pricing, task quality, and projected cost at higher scale.
Pricing
Side-by-side pricing
GPT 5.5
FlagshipGrok Build 0.1
Fast / BudgetInput $/MTok
$5.00
$1.00
Output $/MTok
$30.00
$2.00
Cache discount
90% off
80% off
Context
1.1M
256K
Quality
Task confidence comparison
Confidence score from zero to one hundred by task type, where higher is better.
Code Generation
65
vs
54
Code Review
90
vs
0
Summarization
70
vs
63
Q&A
90
vs
0
Extraction
78
vs
71
Reasoning
90
vs
76
Classification
85
vs
0
Creative Writing
73
vs
73
GPT 5.5
Grok Build 0.1
Guidance
When to use GPT 5.5 vs Grok Build 0.1
Choose GPT 5.5 when...
- -You need strong reasoning (confidence 90 vs 76)
- -You need strong extraction (confidence 78 vs 71)
- -You need strong summarization (confidence 70 vs 63)
- -You need strong code generation (confidence 65 vs 54)
- -You need a larger context window (1.1M vs 256K)
Choose Grok Build 0.1 when...
- -Cost matters: 80% cheaper on input tokens
At scale
Cost at scale
Estimated cost assuming a seventy percent input and thirty percent output token split.
GPT 5.5
Grok Build 0.1
100K tokens
$1.25
$0.13Cheaper
1M tokens
$20.50
$2.60Cheaper
10M tokens
$205.00
$26.00Cheaper
FAQ
When should I use GPT 5.5 instead of Grok Build 0.1?
GPT 5.5 outperforms Grok Build 0.1 for Code Generation, Summarization, Extraction. It costs $5.00/$30.00 per million tokens (input/output).
Is Grok Build 0.1 cheaper than GPT 5.5?
Yes. Grok Build 0.1 input costs $1.00/MTok vs $5.00/MTok for GPT 5.5, saving 80% on input.
What are the context window sizes for GPT 5.5 and Grok Build 0.1?
GPT 5.5 has a 1.1M token context window. Grok Build 0.1 has a 256K 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 GPT 5.5 and Grok Build 0.1 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.