tokevenGPTvsGPT
GPT 5.6 Sol vs GPT 5.6 Terra
Side-by-side comparison of pricing, task quality, and projected cost at higher scale.
Pricing
Side-by-side pricing
GPT 5.6 Sol
FlagshipGPT 5.6 Terra
Mid-tierInput $/MTok
$4.00
$2.00
Output $/MTok
$20.00
$12.00
Cache discount
90% off
90% off
Context
922K
922K
Quality
Task confidence comparison
Confidence score from zero to one hundred by task type, where higher is better.
Code Generation
67
vs
64
Code Review
92
vs
84
Summarization
70
vs
64
Q&A
91
vs
92
Extraction
75
vs
75
Reasoning
92
vs
91
Classification
86
vs
89
Creative Writing
76
vs
67
GPT 5.6 Sol
GPT 5.6 Terra
Guidance
When to use GPT 5.6 Sol vs GPT 5.6 Terra
Choose GPT 5.6 Sol when...
- -You need strong code review (confidence 92 vs 84)
- -You need strong reasoning (confidence 92 vs 91)
- -You need strong creative writing (confidence 76 vs 67)
- -You need strong summarization (confidence 70 vs 64)
Choose GPT 5.6 Terra when...
- -You need strong q&a (confidence 92 vs 91)
- -You need strong classification (confidence 89 vs 86)
- -Cost matters: 50% cheaper on input tokens
At scale
Cost at scale
Estimated cost assuming a seventy percent input and thirty percent output token split.
GPT 5.6 Sol
GPT 5.6 Terra
100K tokens
$0.88
$0.50Cheaper
1M tokens
$14.60
$8.20Cheaper
10M tokens
$146.00
$82.00Cheaper
FAQ
When should I use GPT 5.6 Sol instead of GPT 5.6 Terra?
GPT 5.6 Sol outperforms GPT 5.6 Terra for Code Generation, Code Review, Summarization. It costs $4.00/$20.00 per million tokens (input/output).
Is GPT 5.6 Terra cheaper than GPT 5.6 Sol?
Yes. GPT 5.6 Terra input costs $2.00/MTok vs $4.00/MTok for GPT 5.6 Sol, saving 50% on input.
What are the context window sizes for GPT 5.6 Sol and GPT 5.6 Terra?
GPT 5.6 Sol has a 922K token context window. GPT 5.6 Terra has a 922K 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 GPT 5.6 Terra 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.