GPT 5 Codex
GPT-5-Codex is a specialized version of GPT-5 optimized for software engineering and coding workflows. It is designed for both interactive development sessions and long, independent execution of complex engineering tasks. The model supports building projects from scratch, feature development, debugging, large-scale refactoring, and code review. Compared to GPT-5, Codex is more steerable, adheres closely to developer instructions, and produces cleaner, higher-quality code outputs. Reasoning effort can be adjusted with the `reasoning.effort` parameter. Read the [docs here](https://openrouter.ai/docs/use-cases/reasoning-tokens#reasoning-effort-level) Codex integrates into developer environments including the CLI, IDE extensions, GitHub, and cloud tasks. It adapts reasoning effort dynamically—providing fast responses for small tasks while sustaining extended multi-hour runs for large projects. The model is trained to perform structured code reviews, catching critical flaws by reasoning over dependencies and validating behavior against tests. It also supports multimodal inputs such as images or screenshots for UI development and integrates tool use for search, dependency installation, and environment setup. Codex is intended specifically for agentic coding applications.
定價資訊
快速開始
只需更改 base_url 即可透過 BazaarLink API 使用 GPT 5 Codex：
from openai import OpenAI
client = OpenAI(
base_url="https://bazaarlink.ai/api/v1",
api_key="sk-bl-YOUR_API_KEY",
)
response = client.chat.completions.create(
model="openai/gpt-5-codex",
messages=[{"role": "user", "content": "Hello!"}],
)
print(response.choices[0].message.content)import OpenAI from "openai";
const client = new OpenAI({
baseURL: "https://bazaarlink.ai/api/v1",
apiKey: "sk-bl-YOUR_API_KEY",
});
const response = await client.chat.completions.create({
model: "openai/gpt-5-codex",
messages: [{ role: "user", content: "Hello!" }],
});
console.log(response.choices[0].message.content);為什麼透過 BazaarLink 使用 GPT 5 Codex？
- ✓美元計費（台幣報價）+ 統一發票 — 台灣團隊無需海外刷卡
- ✓OpenAI 相容 API — 無需改寫程式碼
- ✓自動故障轉移 — 同模型多供應商備援
- ✓中文客服支援 — 在地團隊即時協助
Frequently Asked Questions
What is GPT 5 Codex?
GPT-5-Codex is a specialized version of GPT-5 optimized for software engineering and coding workflows. It is designed for both interactive development sessions and long, independent execution of complex engineering tasks. The model supports building projects from scratch, feature development, debugging, large-scale refactoring, and code review. Compared to GPT-5, Codex is more steerable, adheres closely to developer instructions, and produces cleaner, higher-quality code outputs. Reasoning effort can be adjusted with the `reasoning.effort` parameter. Read the [docs here](https://openrouter.ai/docs/use-cases/reasoning-tokens#reasoning-effort-level) Codex integrates into developer environments including the CLI, IDE extensions, GitHub, and cloud tasks. It adapts reasoning effort dynamically—providing fast responses for small tasks while sustaining extended multi-hour runs for large projects. The model is trained to perform structured code reviews, catching critical flaws by reasoning over dependencies and validating behavior against tests. It also supports multimodal inputs such as images or screenshots for UI development and integrates tool use for search, dependency installation, and environment setup. Codex is intended specifically for agentic coding applications.
How much does the GPT 5 Codex API cost?
GPT 5 Codex costs $1.2500 per 1K input tokens and $10.0000 per 1K output tokens when accessed through BazaarLink.
How do I use GPT 5 Codex with the OpenAI SDK?
Set base_url to "https://bazaarlink.ai/api/v1" and use model ID "openai/gpt-5-codex". All OpenAI SDK methods (chat.completions, embeddings, streaming) work without code changes.
What is the context window for GPT 5 Codex?
GPT 5 Codex supports a context window of 400,000 tokens.
Is GPT 5 Codex available for free?
GPT 5 Codex is a paid model. BazaarLink offers free trial credits on registration so you can test it without a credit card.