tokevenClaudevsGPT
Claude Sonnet 4.6 vs GPT 5.6 Terra
Side-by-side comparison of pricing, task quality, and projected cost at higher scale.
Pricing
Side-by-side pricing
Claude Sonnet 4.6
Mid-tierGPT 5.6 Terra
Mid-tierInput $/MTok
$3.00
$2.00
Output $/MTok
$15.00
$12.00
Cache discount
90% off
90% off
Context
1M
922K
Quality
Task confidence comparison
Confidence score from zero to one hundred by task type, where higher is better.
Code Generation
57
vs
64
Code Review
95
vs
84
Summarization
61
vs
64
Q&A
88
vs
92
Extraction
71
vs
75
Reasoning
85
vs
91
Classification
84
vs
89
Creative Writing
69
vs
67
Claude Sonnet 4.6
GPT 5.6 Terra
Guidance
When to use Claude Sonnet 4.6 vs GPT 5.6 Terra
Choose Claude Sonnet 4.6 when...
- -You need strong code review (confidence 95 vs 84)
- -You need strong creative writing (confidence 69 vs 67)
- -You need a larger context window (1M vs 922K)
Choose GPT 5.6 Terra when...
- -You need strong q&a (confidence 92 vs 88)
- -You need strong reasoning (confidence 91 vs 85)
- -You need strong classification (confidence 89 vs 84)
- -You need strong extraction (confidence 75 vs 71)
- -Cost matters: 33% cheaper on input tokens
At scale
Cost at scale
Estimated cost assuming a seventy percent input and thirty percent output token split.
Claude Sonnet 4.6
GPT 5.6 Terra
100K tokens
$0.66
$0.50Cheaper
1M tokens
$6.60Cheaper
$8.20
10M tokens
$66.00Cheaper
$82.00
FAQ
When should I use Claude Sonnet 4.6 instead of GPT 5.6 Terra?
Claude Sonnet 4.6 outperforms GPT 5.6 Terra for Code Review, Creative Writing. It costs $3.00/$15.00 per million tokens (input/output).
Is GPT 5.6 Terra cheaper than Claude Sonnet 4.6?
Yes. GPT 5.6 Terra input costs $2.00/MTok vs $3.00/MTok for Claude Sonnet 4.6, saving 33% on input.
What are the context window sizes for Claude Sonnet 4.6 and GPT 5.6 Terra?
Claude Sonnet 4.6 has a 1M 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 Claude Sonnet 4.6 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.