tokevenClaudevsGPT
Claude Opus 4.8 vs GPT 5.4
Side-by-side comparison of pricing, task quality, and projected cost at higher scale.
Pricing
Side-by-side pricing
Claude Opus 4.8
FlagshipGPT 5.4
Mid-tierInput $/MTok
$5.00
$2.50
Output $/MTok
$25.00
$15.00
Cache discount
90% off
90% off
Context
200K
128K
Quality
Task confidence comparison
Confidence score from zero to one hundred by task type, where higher is better.
Code Generation
95
vs
84
Code Review
94
vs
82
Summarization
88
vs
91
Q&A
85
vs
91
Extraction
82
vs
89
Reasoning
97
vs
80
Classification
80
vs
88
Creative Writing
93
vs
78
Claude Opus 4.8
GPT 5.4
Guidance
When to use Claude Opus 4.8 vs GPT 5.4
Choose Claude Opus 4.8 when...
- -You need strong reasoning (confidence 97 vs 80)
- -You need strong code generation (confidence 95 vs 84)
- -You need strong code review (confidence 94 vs 82)
- -You need strong creative writing (confidence 93 vs 78)
- -You need a larger context window (200K vs 128K)
Choose GPT 5.4 when...
- -You need strong summarization (confidence 91 vs 88)
- -You need strong q&a (confidence 91 vs 85)
- -You need strong extraction (confidence 89 vs 82)
- -You need strong classification (confidence 88 vs 80)
- -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.
Claude Opus 4.8
GPT 5.4
100K tokens
$1.10
$0.63Cheaper
1M tokens
$11.00
$6.25Cheaper
10M tokens
$110.00
$62.50Cheaper
FAQ
When should I use Claude Opus 4.8 instead of GPT 5.4?
Claude Opus 4.8 outperforms GPT 5.4 for Reasoning, Code Generation, Code Review. It costs $5.00/$25.00 per million tokens (input/output).
Is GPT 5.4 cheaper than Claude Opus 4.8?
Yes. GPT 5.4 input costs $2.50/MTok vs $5.00/MTok for Claude Opus 4.8, saving 50% on input.
What are the context window sizes for Claude Opus 4.8 and GPT 5.4?
Claude Opus 4.8 has a 200K token context window. GPT 5.4 has a 128K token context window.
Track your real costs
Comparisons show estimated costs at list price. The dashboard reveals your real spend and savings.