GPT-5.4
About this model
GPT-5.4 is OpenAI’s latest frontier model, unifying the Codex and GPT lines into a single system. It features a 1M+ token context window (922K input, 128K output) with support for text and image inputs, enabling high-context reasoning, coding, and multimodal analysis within the same workflow. The model delivers improved performance in coding, document understanding, tool use, and instruction following. It is designed as a strong default for both general-purpose tasks and software engineering, capable of generating production-quality code, synthesizing information across multiple sources, and executing complex multi-step workflows with fewer iterations and greater token efficiency.
Performance Tier
GPT-5.4 is a flagship model from GPT : the most capable in their lineup.
Best-in-class model from this provider. Highest performance across benchmarks, ideal for demanding tasks.
Pricing
This model is included in Elosia plans| Type | per 1M tokens |
|---|---|
| Input (prompt) | $2.50 |
| Output (completion) | $15.00 |
| Cache read | $0.250 |
Capabilities
Benchmarks
Recommended Use Cases
Strengths
- Unifies the Codex and GPT lines into a single frontier model
- 1M-token context window for large-scale document analysis
- 33% fewer hallucinations compared to GPT-5.2
- Native computer use — clicks, types and navigates software via screenshots
Limitations
- Premium pricing tier
- Very recent release — ecosystem integrations still maturing
Resources
This model may use your data for training
