AI Model Watch
Models / OpenAI

GPT-5.4 Pro

GA

Snapshot alias gpt-5.4-pro-2026-03-05. Responses API only. Reasoning effort medium/high/xhigh. Doc notes potential 2x/1.5x multipliers for sessions exceeding 272K input tokens. No cached-input price published.

GPT-5.4 Pro by OpenAI costs $30 per 1M input tokens and $180 per 1M output tokens ($67.50/1M blended), with a 1.1M (1.050.000-token) context window. It is generally available (GA), with a knowledge cutoff of 31 Aug 2025.

Last verified: 13 Aug 2026 · sourced from official provider documentation

Provider
OpenAI
Status
GA
Input price
$30 / 1M tokens
Output price
$180 / 1M tokens
Cached input
—
Blended price
$67.50 / 1M tokens
Context window
1.050.000 tokens (1.1M)
Max output
128.000 tokens
Modality
text, image
Open weights
No — API only
Knowledge cutoff
2025-08-31
Released
5 Mar 2026
API string
gpt-5.4-pro

Source: OpenAI official documentation ↗

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FAQ

GPT-5.4 Pro — questions & answers

How much does GPT-5.4 Pro cost?

GPT-5.4 Pro is priced at $30 per 1M input tokens and $180 per 1M output tokens ($67.50/1M blended at a 3:1 input-to-output ratio).

What is the context window of GPT-5.4 Pro?

GPT-5.4 Pro has a 1.050.000-token context window (1.1M), with up to 128.000 output tokens per request.

Is GPT-5.4 Pro deprecated?

No — GPT-5.4 Pro is generally available (GA) and not currently scheduled for deprecation or retirement in our tracker.

Does GPT-5.4 Pro support image or vision input?

Yes — GPT-5.4 Pro accepts image input. Listed modalities: text, image.

Can I self-host GPT-5.4 Pro?

No — GPT-5.4 Pro is proprietary. Its weights are not publicly released, so it is available only through OpenAI's API (or hosted partners), not for self-hosting.

What is the API model string for GPT-5.4 Pro?

The API model identifier for GPT-5.4 Pro is "gpt-5.4-pro" when calling OpenAI's API.

What is GPT-5.4 Pro's knowledge cutoff?

GPT-5.4 Pro's training knowledge cutoff is 31 Aug 2025.