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Quick Answer

  • Best for high-complexity reasoning, planning, and code analysis workflows.
  • Uses OpenAI-compatible format: POST /v1/chat/completions for low-friction SDK migration.
  • Supports stream=true SSE output for IDE copilots and real-time assistants.

Key Parameters

  • model | string | required | gpt-5.4 | - | Model ID for this page (for example gpt-5.4).
  • messages | object[] | required | - | - | Conversation messages in chronological order with system/user/assistant roles.
  • max_tokens | integer | optional | - | >=1 | Maximum output tokens (model default applies when omitted).
  • stream | boolean | optional | false | - | Whether to enable SSE streaming output.
  • temperature | number | optional | 1 | 0-2 | Sampling temperature controlling randomness.
  • top_p | number | optional | 1 | 0-1 | Nucleus sampling threshold; avoid aggressively tuning with temperature together.
  • stop | string | string[] | optional | - | - | Stop sequence(s), up to 4 entries.
  • Authorization | HTTP Header | required | - | - | Bearer auth: Authorization: Bearer <YOUR_API_KEY>.

Common Errors

  • 400 invalid_request_error: trigger=Missing required fields or invalid field types in payload.; fix=Validate model, messages, and parameter types.; retry=Retry only after fixing payload.
  • 401 authentication_error: trigger=Missing/invalid auth header or invalid API key.; fix=Verify Authorization header format and key validity.; retry=Retry after auth is fixed.
  • 429 rate_limit_error: trigger=Request rate, concurrency, or current quota hits upstream rate limiting.; fix=Apply exponential backoff first, then review request rate, concurrency, and quota usage.; retry=Use 1s/2s/4s backoff with jitter; if it persists, reduce submission pressure.

gpt-5.4

gpt-5.4 is a high-end general model for complex reasoning and high-quality text/code generation. This page focuses on OpenAI Chat Completions integration, key parameters, and production-oriented implementation.

모델 유형:
가격: Input 150 크레딧/1M, Output 900 크레딧/1M
Type a message to test the model.

생성 예제

gpt-5.4 생성 결과 살펴보기

이 모델로 생성
gpt-5.4 guide example 1

gpt-5.4 #1

gpt-5.4 guide example 2

gpt-5.4 #2

gpt-5.4 guide example 3

gpt-5.4 #3

투명한 가격

gpt-5.4 가격

Text usage is billed by actual token consumption. Final billing follows the current account quote.

크레딧 충전
Input 150 크레딧/1M, Output 900 크레딧/1M

ToAPIs를 선택하는 이유

Why call gpt-5.4 through ToAPIs?

Keep model access, API keys, billing, and usage management in one workflow.

Complex reasoning and decomposition

Strong at long-chain reasoning, option comparison, and constraint-aware planning.

High-quality code and technical writing

Useful for code explanation, refactoring proposals, tests, and technical drafts.

OpenAI-compatible integration

Reuses Chat Completions payloads and existing SDK pipelines with minimal changes.

Connect in three steps

Create a key, send a compatible chat request, and monitor usage.

  1. 1

    Step 1

    Create an API key and set Authorization: Bearer <YOUR_API_KEY>.

  2. 2

    Step 2

    POST to /v1/chat/completions with at least model and messages.

  3. 3

    Step 3

    Tune max_tokens, temperature, top_p, and stop for your scenario.

When to use gpt-5.4

Use case 1

When handling complex reasoning, technical evaluation, and coding analysis tasks.

Use case 2

When you want OpenAI-compatible integration with minimal migration work.

Use case 3

When streaming output is needed for responsive interactive UX.

자주 묻는 질문

gpt-5.4 FAQ

What is gpt-5.4 best for?

It is best for complex reasoning, technical Q&A, code analysis, and high-quality content generation.

What is the fastest integration path?

Use OpenAI-compatible format: POST to /v1/chat/completions with model and messages.

How should streaming be handled?

Set stream=true and process SSE chunks incrementally, then finalize using finish_reason.

How to choose temperature vs top_p?

Start with temperature first; tune top_p only when needed, and avoid over-tuning both together.

gpt-5.4 API

Start building with gpt-5.4

Test a request here, then continue in the dashboard or API documentation.

Start for freeView API Docs

Try gpt-5.4 with one ToAPIs key.

Use the same account and API surface across supported text models.

Sign up to get free credits