GPT-5.4
FeaturedBy OpenAI · Visit provider →
GPT-5.4 was the flagship model before the 5.6 series, still delivering strong performance across a wide range of tasks. A reliable workhorse for applications that don't need the latest model.
Input Price
$2.50
per 1M tokens
Output Price
$15.00
per 1M tokens
Context Window
128K
tokens
Key Strengths
- Proven reliability in production
- Strong general-purpose performance
- Good coding and reasoning
- Mature ecosystem with extensive fine-tuning support
Best Use Cases
Established production pipelinesFine-tuned domain-specific applicationsContent generation and editingStandard API integrations
Pricing Details
| Metric | Value |
|---|---|
| Input (per 1M tokens) | $2.50 |
| Output (per 1M tokens) | $15.00 |
| Context window | 128K tokens |
| Provider | OpenAI |
| Architecture | Dense transformer, 128K context window, mature and battle-tested architecture |
Previous flagship
Benchmark Performance
GPQA Diamond 92 / 100
Coding Index 71.1 / 100
Intelligence Index 53.1 / 100
Humanity's Last Exam 43.7 / 100
Source: Artificial Analysis (independent benchmarking). Updated 2026-08-08.
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Pricing data is sourced from official API documentation and updated weekly. Actual costs may vary based on prompt caching, batch processing, service tiers, and regional pricing. Inblix is not affiliated with OpenAI.