OpenAI: GPT-5.4
Chat-20%openai/gpt-5.4GPT-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.
Providers
/v1/chat/completions/v1/responsesCode Examples
from openai import OpenAIclient = OpenAI(base_url="https://api.ofox.io/v1",api_key="YOUR_OFOX_API_KEY",)response = client.chat.completions.create(model="openai/gpt-5.4",messages=[{"role": "user", "content": "Hello!"}],)print(response.choices[0].message.content)
Uptime & Status
Benchmarks
OpenAI: GPT-5.4 scores 1466 in the Overall category of the LMArena text leaderboard (style control), ranking #31 of 374 models based on 58,105 human preference votes (updated 2026-07-12).
| Category | Arena Score | 95% CI | Rank | Votes |
|---|---|---|---|---|
| Overall | 1462–1470 | #31 of 374 | 58,105 | |
| Hard Prompts | 1483–1493 | #30 of 374 | 37,873 | |
| Coding | 1506–1519 | #30 of 369 | 16,064 | |
| Math | 1449–1471 | #38 of 362 | 3,109 | |
| Creative Writing | 1425–1440 | #45 of 372 | 9,338 | |
| Instruction Following | 1455–1467 | #28 of 374 | 19,470 | |
| Chinese | 1483–1507 | #45 of 344 | 3,098 |
Source: LMArena · CC BY 4.0 · Updated 2026-07-12 · Methodology ↗ · Ranks compare models within each category of the LMArena text leaderboard (style control). Scores come from third-party human preference evaluations, not from OFOX.