GPT-5.4

by OpenAI

GPT-5.4 is a model from OpenAI, released on March 5, 2026. It has a 1M-token context window and can generate up to 128K output tokens. API pricing is $2.5 per 1M input tokens and $15 per 1M output tokens.

GPT-5.4 is OpenAI's most capable and efficient frontier model for professional work. It combines industry-leading coding capabilities with native computer-use, up to 1M tokens of context, full-resolution vision processing, tool search for large tool ecosystems, and improved reasoning across spreadsheets, presentations, and documents. It is the most token-efficient reasoning model in the GPT-5 series.

Key specs

ProviderOpenAI
Release date2026-03-05
Licenseproprietary
Context window1M tokens
Max output128K tokens
Input price$2.5 / 1M tokens
Output price$15 / 1M tokens
Intelligence Score41.7
Coding index29.8

Quick answers

What is the context window of GPT-5.4?

GPT-5.4 has a context window of 1M tokens, with a maximum output of 128K tokens per response.

How much does GPT-5.4 cost?

GPT-5.4 costs $2.5 per 1M input tokens and $15 per 1M output tokens through the API.

Is GPT-5.4 open source?

No. GPT-5.4 is a proprietary model from OpenAI (proprietary license).

When was GPT-5.4 released?

OpenAI released GPT-5.4 on March 5, 2026.

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