tokevenGPTvsGrok
GPT 5.6 Sol vs Grok 4.3
Side-by-side comparison of pricing, task quality, and projected cost at higher scale.
Pricing
Side-by-side pricing
GPT 5.6 Sol
FlagshipGrok 4.3
Mid-tierInput $/MTok
$4.00
$1.25
Output $/MTok
$20.00
$2.50
Cache discount
90% off
84% off
Context
922K
1M
Quality
Task confidence comparison
Confidence score from zero to one hundred by task type, where higher is better.
Code Generation
67
vs
39
Code Review
92
vs
0
Summarization
70
vs
60
Q&A
91
vs
0
Extraction
75
vs
70
Reasoning
92
vs
71
Classification
86
vs
0
Creative Writing
76
vs
71
GPT 5.6 Sol
Grok 4.3
Guidance
When to use GPT 5.6 Sol vs Grok 4.3
Choose GPT 5.6 Sol when...
- -You need strong reasoning (confidence 92 vs 71)
- -You need strong creative writing (confidence 76 vs 71)
- -You need strong extraction (confidence 75 vs 70)
- -You need strong summarization (confidence 70 vs 60)
Choose Grok 4.3 when...
- -Cost matters: 69% cheaper on input tokens
- -You need a larger context window (1M vs 922K)
At scale
Cost at scale
Estimated cost assuming a seventy percent input and thirty percent output token split.
GPT 5.6 Sol
Grok 4.3
100K tokens
$0.88
$0.16Cheaper
1M tokens
$14.60
$3.25Cheaper
10M tokens
$146.00
$32.50Cheaper
FAQ
When should I use GPT 5.6 Sol instead of Grok 4.3?
GPT 5.6 Sol outperforms Grok 4.3 for Code Generation, Summarization, Extraction. It costs $4.00/$20.00 per million tokens (input/output).
Is Grok 4.3 cheaper than GPT 5.6 Sol?
Yes. Grok 4.3 input costs $1.25/MTok vs $4.00/MTok for GPT 5.6 Sol, saving 69% on input.
What are the context window sizes for GPT 5.6 Sol and Grok 4.3?
GPT 5.6 Sol has a 922K token context window. Grok 4.3 has a 1M 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 5.6 Sol and Grok 4.3 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.