tokevenGPTvsGrok
GPT 5.6 Terra vs Grok 4.6
Side-by-side comparison of pricing, task quality, and projected cost at higher scale.
Pricing
Side-by-side pricing
GPT 5.6 Terra
Mid-tierGrok 4.6
FlagshipInput $/MTok
$2.00
$2.00
Output $/MTok
$12.00
$6.00
Cache discount
90% off
75% off
Context
922K
500K
Quality
Task confidence comparison
Confidence score from zero to one hundred by task type, where higher is better.
Code Generation
64
vs
65
Code Review
84
vs
0
Summarization
64
vs
70
Q&A
92
vs
0
Extraction
75
vs
72
Reasoning
91
vs
91
Classification
89
vs
0
Creative Writing
67
vs
78
GPT 5.6 Terra
Grok 4.6
Guidance
When to use GPT 5.6 Terra vs Grok 4.6
Choose GPT 5.6 Terra when...
- -You need strong extraction (confidence 75 vs 72)
- -You need a larger context window (922K vs 500K)
Choose Grok 4.6 when...
- -You need strong creative writing (confidence 78 vs 67)
- -You need strong summarization (confidence 70 vs 64)
- -You need strong code generation (confidence 65 vs 64)
At scale
Cost at scale
Estimated cost assuming a seventy percent input and thirty percent output token split.
GPT 5.6 Terra
Grok 4.6
100K tokens
$0.50
$0.32Cheaper
1M tokens
$8.20
$6.40Cheaper
10M tokens
$82.00
$64.00Cheaper
FAQ
When should I use GPT 5.6 Terra instead of Grok 4.6?
GPT 5.6 Terra outperforms Grok 4.6 for Extraction. It costs $2.00/$12.00 per million tokens (input/output).
Is Grok 4.6 cheaper than GPT 5.6 Terra?
Both models have the same input pricing at $2.00/MTok. Compare output pricing: $12.00 vs $6.00/MTok.
What are the context window sizes for GPT 5.6 Terra and Grok 4.6?
GPT 5.6 Terra has a 922K token context window. Grok 4.6 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 GPT 5.6 Terra and Grok 4.6 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.