模型支援企業部落格
500+ AI 模型 API,全部整合在一個 API 中。就在 CometAPI
模型 API
開發者
快速入門說明文件API 儀表板
資源
AI模型部落格企業更新日誌關於
2025 CometAPI. 保留所有權利。隱私政策服務條款
Home/Models/OpenAI/gpt-4-0314
O

gpt-4-0314

輸入:$24/M
輸出:$48/M
商業用途
概覽
功能
定價
API

Technical Specifications of gpt-4-0314

gpt-4-0314 is a fixed snapshot of OpenAI’s GPT-4 family dated March 14, 2023, designed to provide stable behavior for applications that need consistent outputs over time. OpenAI documents it as an older GPT-4 model snapshot in the Chat Completions API, and third-party model directories consistently describe it as the March 14, 2023 GPT-4 snapshot.

Key technical points commonly associated with gpt-4-0314 include an 8K context window, text-only operation, and use within chat-style completion workflows rather than newer multimodal or responses-first interfaces. OpenAI’s GPT-4 model documentation lists gpt-4-0314 among older GPT-4 variants, while model directories and ecosystem references describe it as an 8K snapshot intended for legacy compatibility.

As of March 26, 2026, OpenAI’s deprecations documentation indicates gpt-4-0314 has been retired and points developers toward newer replacements such as gpt-5 or gpt-4.1*, which is important context for anyone using the CometAPI platform identifier gpt-4-0314.

What is gpt-4-0314?

gpt-4-0314 is a historical GPT-4 snapshot that captures the behavior of OpenAI’s early GPT-4 release state from March 14, 2023. In practice, snapshot models like this were used when developers wanted deterministic model targeting instead of relying on a rolling alias that could change behavior as the provider updated the underlying system.

This makes gpt-4-0314 especially relevant for legacy applications, regression testing, benchmark reproduction, and systems that were originally tuned around early GPT-4 prompting behavior. Compared with newer model generations, it is best understood as a classic text-generation and reasoning model rather than a modern multimodal, long-context, or cost-optimized default. That characterization is supported by OpenAI’s positioning of GPT-4 as an older high-intelligence model and by ecosystem references describing gpt-4-0314 specifically as an older fixed-version snapshot.

Main features of gpt-4-0314

  • Snapshot stability: gpt-4-0314 refers to a dated GPT-4 snapshot rather than a moving alias, which helps preserve consistent behavior for testing, evaluation, and pinned production workflows.
  • Strong general reasoning: As part of the original GPT-4 family, it is suited to complex instructions, multi-step analysis, structured writing, and code-related tasks typical of early flagship GPT-4 usage.
  • 8K context window: Available references consistently list gpt-4-0314 with an approximately 8,192-token context length, making it suitable for moderately long prompts and conversations, though far shorter than newer long-context models.
  • Chat Completions compatibility: OpenAI’s model documentation places this model in the older Chat Completions-era GPT-4 lineup, which makes it relevant for systems built around traditional message-array request formats.
  • Legacy workflow support: Because it represents an early GPT-4 behavior profile, it is useful for preserving backward compatibility in older applications or reproducing historical outputs during migrations.
  • Retired upstream status: OpenAI’s deprecation documentation indicates the original upstream model has been sunset, so use through aggregators should be approached as a compatibility or legacy-access path rather than a net-new primary deployment choice.

How to access and integrate gpt-4-0314

Step 1: Sign Up for API Key

Sign up on CometAPI and create an API key from your dashboard. After that, store the key securely as an environment variable, such as COMETAPI_KEY, so your application can authenticate requests safely. CometAPI provides an OpenAI-compatible API experience, making it straightforward to work with models such as gpt-4-0314.

Step 2: Send Requests to gpt-4-0314 API

Use CometAPI’s OpenAI-compatible chat completion interface and set the model field to gpt-4-0314.

curl https://api.cometapi.com/v1/chat/completions \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer $COMETAPI_KEY" \
  -d '{
    "model": "gpt-4-0314",
    "messages": [
      {"role": "system", "content": "You are a helpful assistant."},
      {"role": "user", "content": "Explain the significance of snapshot model versions in APIs."}
    ]
  }'

Python example:

from openai import OpenAI

client = OpenAI(
    api_key="YOUR_COMETAPI_KEY",
    base_url="https://api.cometapi.com/v1"
)

response = client.chat.completions.create(
    model="gpt-4-0314",
    messages=[
        {"role": "system", "content": "You are a helpful assistant."},
        {"role": "user", "content": "Explain the significance of snapshot model versions in APIs."}
    ]
)

print(response.choices[0].message.content)

Step 3: Retrieve and Verify Results

After receiving the response, extract the generated content from the first choice in the response object and validate that the output matches your application’s expectations for format, accuracy, and safety. If you are migrating a legacy workflow, it is also a good idea to compare responses from gpt-4-0314 against newer replacements to confirm whether pinned historical behavior is still necessary.

gpt-4-0314 的功能

探索 gpt-4-0314 的核心功能,專為提升效能和可用性而設計。了解這些功能如何為您的專案帶來效益並改善使用者體驗。

gpt-4-0314 的定價

探索 gpt-4-0314 的競爭性定價,專為滿足各種預算和使用需求而設計。我們靈活的方案確保您只需為實際使用量付費,讓您能夠隨著需求增長輕鬆擴展。了解 gpt-4-0314 如何在保持成本可控的同時提升您的專案效果。
彗星價格 (USD / M Tokens)官方價格 (USD / M Tokens)折扣
輸入:$24/M
輸出:$48/M
輸入:$30/M
輸出:$60/M
-20%

gpt-4-0314 的範例程式碼和 API

存取完整的範例程式碼和 API 資源,以簡化您的 gpt-4-0314 整合流程。我們詳盡的文件提供逐步指引,協助您在專案中充分發揮 gpt-4-0314 的潛力。

更多模型

G

Nano Banana 2

輸入:$0.4/M
輸出:$2.4/M
核心能力概覽:解析度:最高可達 4K(4096×4096),與 Pro 相當。參考圖片一致性:最多支援 14 張參考圖片(10 個物件 + 4 個角色),維持風格與角色一致性。極端寬高比:新增 1:4、4:1、1:8、8:1 比例,適合長圖、海報與橫幅。文字渲染:進階文字生成,適用於資訊圖表與行銷海報版面。搜尋強化:整合 Google Search + Image Search。Grounding:內建思考過程;在生成前會先對複雜提示進行推理。
A

Claude Opus 4.6

輸入:$4/M
輸出:$20/M
Claude Opus 4.6 是 Anthropic 的「Opus」級大型語言模型,於 2026 年 2 月發布。它被定位為知識工作與研究工作流程的主力,著重提升長上下文推理、多步規劃、工具使用(包括代理型軟體工作流程),以及電腦操作任務,例如自動化製作投影片與試算表。
A

Claude Sonnet 4.6

輸入:$2.4/M
輸出:$12/M
Claude Sonnet 4.6 是我們迄今為止最強大的 Sonnet 模型。它對模型在程式設計、電腦操作、長上下文推理、代理規劃、知識工作與設計等方面的能力進行了全面升級。Sonnet 4.6 亦提供 1M 詞元的上下文視窗,目前處於 Beta 階段。
O

GPT-5.4 nano

輸入:$0.16/M
輸出:$1/M
GPT-5.4 nano 專為速度與成本最為關鍵的任務而設計,例如分類、資料擷取、排序與子智能體。
O

GPT-5.4 mini

輸入:$0.6/M
輸出:$3.6/M
GPT-5.4 mini 將 GPT-5.4 的優勢帶入一個更快速、更高效、專為大量工作負載設計的模型。
A

Claude Mythos Preview

A

Claude Mythos Preview

即將推出
輸入:$60/M
輸出:$240/M
Claude Mythos Preview 是我們迄今最強大的前沿模型,與我們先前的前沿模型 Claude Opus 4.6 相比,在多項評測基準上的分數呈現出 顯著躍升。