Models · OpenAI
GPT-5.4
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 $2.50 per 1M tokens
Output $15.00 per 1M tokens
Context 128K tokens · $17.50 combined per 1M
Benchmark performance
Source: Artificial Analysis. Updated 2026-09-20.
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 pipelines
- Fine-tuned domain-specific applications
- Content generation and editing
- Standard API integrations
Pricing details
| Input (per 1M tokens) | $2.50 |
| Output (per 1M tokens) | $15.00 |
| Context window | 128K tokens |
| Architecture | Dense transformer, 128K context window, mature and battle-tested architecture |
| Provider | OpenAI |
Previous flagship
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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.