AI Model Watch
Models / OpenAI

GPT-5.4

GA

Snapshot alias gpt-5.4-2026-03-05 (snapshot date taken as release date; not explicitly stated on doc page). Reasoning model with configurable effort. OpenAI's pricing page qualifies this rate as "<272K context length" (verified 2026-08-08); it publishes no rate above that band on this surface.

GPT-5.4 by OpenAI costs $2.50 per 1M input tokens and $15 per 1M output tokens ($5.63/1M 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
$2.50 / 1M tokens
Output price
$15 / 1M tokens
Cached input
$0.25 / 1M tokens
Blended price
$5.63 / 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

Source: OpenAI official documentation ↗

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FAQ

GPT-5.4 — questions & answers

How much does GPT-5.4 cost?

GPT-5.4 is priced at $2.50 per 1M input tokens and $15 per 1M output tokens ($5.63/1M blended at a 3:1 input-to-output ratio), with cached input at $0.25 per 1M tokens.

What is the context window of GPT-5.4?

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

Is GPT-5.4 deprecated?

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

Does GPT-5.4 support image or vision input?

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

Can I self-host GPT-5.4?

No — GPT-5.4 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?

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

What is GPT-5.4's knowledge cutoff?

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