tokevenClaudevsGPT
Claude Opus 5.5 vs GPT 5.4 Mini
Side-by-side comparison of pricing, task quality, and projected cost at higher scale.
Pricing
Side-by-side pricing
Claude Opus 5.5
FlagshipGPT 5.4 Mini
Fast / BudgetInput $/MTok
$4.00
$0.75
Output $/MTok
$20.00
$4.50
Cache discount
95% off
90% off
Context
1,000K
272K
Quality
Task confidence comparison
Confidence score from zero to one hundred by task type, where higher is better.
Code Generation
0
vs
0
Code Review
0
vs
0
Summarization
0
vs
0
Q&A
0
vs
0
Extraction
0
vs
0
Reasoning
0
vs
0
Classification
0
vs
0
Creative Writing
0
vs
0
Claude Opus 5.5
GPT 5.4 Mini
Guidance
When to use Claude Opus 5.5 vs GPT 5.4 Mini
Choose Claude Opus 5.5 when...
- -You need a larger context window (1,000K vs 272K)
- Similar performance; consider provider preference or ecosystem fit.
Choose GPT 5.4 Mini when...
- -Cost matters: 81% cheaper on input tokens
At scale
Cost at scale
Estimated cost assuming a seventy percent input and thirty percent output token split.
Claude Opus 5.5
GPT 5.4 Mini
100K tokens
$0.88
$0.19Cheaper
1M tokens
$8.80
$1.87Cheaper
10M tokens
$88.00
$18.75Cheaper
FAQ
When should I use Claude Opus 5.5 instead of GPT 5.4 Mini?
Claude Opus 5.5 and GPT 5.4 Mini perform similarly across all tracked tasks. Pick based on pricing and provider preference.
Is GPT 5.4 Mini cheaper than Claude Opus 5.5?
Yes. GPT 5.4 Mini input costs $0.75/MTok vs $4.00/MTok for Claude Opus 5.5, saving 81% on input.
What are the context window sizes for Claude Opus 5.5 and GPT 5.4 Mini?
Claude Opus 5.5 has a 1,000K token context window. GPT 5.4 Mini has a 272K 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 Opus 5.5 and GPT 5.4 Mini 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.