tokevenGPTvsGPT
GPT 5.4 vs GPT 5.6 Sol
Side-by-side comparison of pricing, task quality, and projected cost at higher scale.
Pricing
Side-by-side pricing
GPT 5.4
Mid-tierGPT 5.6 Sol
FlagshipInput $/MTok
$2.50
$4.00
Output $/MTok
$15.00
$20.00
Cache discount
90% off
90% off
Context
1.1M
922K
Quality
Task confidence comparison
Confidence score from zero to one hundred by task type, where higher is better.
Code Generation
63
vs
67
Code Review
82
vs
92
Summarization
67
vs
70
Q&A
91
vs
91
Extraction
76
vs
75
Reasoning
88
vs
92
Classification
88
vs
86
Creative Writing
79
vs
76
GPT 5.4
GPT 5.6 Sol
Guidance
When to use GPT 5.4 vs GPT 5.6 Sol
Choose GPT 5.4 when...
- -You need strong classification (confidence 88 vs 86)
- -You need strong creative writing (confidence 79 vs 76)
- -You need strong extraction (confidence 76 vs 75)
- -Cost matters: 38% cheaper on input tokens
- -You need a larger context window (1.1M vs 922K)
Choose GPT 5.6 Sol when...
- -You need strong code review (confidence 92 vs 82)
- -You need strong reasoning (confidence 92 vs 88)
- -You need strong summarization (confidence 70 vs 67)
- -You need strong code generation (confidence 67 vs 63)
At scale
Cost at scale
Estimated cost assuming a seventy percent input and thirty percent output token split.
GPT 5.4
GPT 5.6 Sol
100K tokens
$0.63Cheaper
$0.88
1M tokens
$10.25Cheaper
$14.60
10M tokens
$102.50Cheaper
$146.00
FAQ
When should I use GPT 5.4 instead of GPT 5.6 Sol?
GPT 5.4 outperforms GPT 5.6 Sol for Extraction, Classification, Creative Writing. It costs $2.50/$15.00 per million tokens (input/output).
Is GPT 5.6 Sol cheaper than GPT 5.4?
GPT 5.6 Sol input costs $4.00/MTok, which is 60% more than GPT 5.4 at $2.50/MTok.
What are the context window sizes for GPT 5.4 and GPT 5.6 Sol?
GPT 5.4 has a 1.1M token context window. GPT 5.6 Sol 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 5.4 and GPT 5.6 Sol 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.